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701 | Insert into a Binary Search Tree | insert-into-a-binary-search-tree | <p>You are given the <code>root</code> node of a binary search tree (BST) and a <code>value</code> to insert into the tree. Return <em>the root node of the BST after the insertion</em>. It is <strong>guaranteed</strong> that the new value does not exist in the original BST.</p>
<p><strong>Notice</strong> that there may exist multiple valid ways for the insertion, as long as the tree remains a BST after insertion. You can return <strong>any of them</strong>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/10/05/insertbst.jpg" style="width: 752px; height: 221px;" />
<pre>
<strong>Input:</strong> root = [4,2,7,1,3], val = 5
<strong>Output:</strong> [4,2,7,1,3,5]
<strong>Explanation:</strong> Another accepted tree is:
<img alt="" src="https://assets.leetcode.com/uploads/2020/10/05/bst.jpg" style="width: 352px; height: 301px;" />
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> root = [40,20,60,10,30,50,70], val = 25
<strong>Output:</strong> [40,20,60,10,30,50,70,null,null,25]
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> root = [4,2,7,1,3,null,null,null,null,null,null], val = 5
<strong>Output:</strong> [4,2,7,1,3,5]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li>The number of nodes in the tree will be in the range <code>[0, 10<sup>4</sup>]</code>.</li>
<li><code>-10<sup>8</sup> <= Node.val <= 10<sup>8</sup></code></li>
<li>All the values <code>Node.val</code> are <strong>unique</strong>.</li>
<li><code>-10<sup>8</sup> <= val <= 10<sup>8</sup></code></li>
<li>It's <strong>guaranteed</strong> that <code>val</code> does not exist in the original BST.</li>
</ul>
| Medium | 671.6K | 914.1K | 671,564 | 914,080 | 73.5% | ['search-in-a-binary-search-tree'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}\n * };\n */\nclass Solution {\npublic:\n TreeNode* insertIntoBST(TreeNode* root, int val) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * int val;\n * TreeNode left;\n * TreeNode right;\n * TreeNode() {}\n * TreeNode(int val) { this.val = val; }\n * TreeNode(int val, TreeNode left, TreeNode right) {\n * this.val = val;\n * this.left = left;\n * this.right = right;\n * }\n * }\n */\nclass Solution {\n public TreeNode insertIntoBST(TreeNode root, int val) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "# Definition for a binary tree node.\n# class TreeNode(object):\n# def __init__(self, val=0, left=None, right=None):\n# self.val = val\n# self.left = left\n# self.right = right\nclass Solution(object):\n def insertIntoBST(self, root, val):\n \"\"\"\n :type root: Optional[TreeNode]\n :type val: int\n :rtype: Optional[TreeNode]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "# Definition for a binary tree node.\n# class TreeNode:\n# def __init__(self, val=0, left=None, right=None):\n# self.val = val\n# self.left = left\n# self.right = right\nclass Solution:\n def insertIntoBST(self, root: Optional[TreeNode], val: int) -> Optional[TreeNode]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * struct TreeNode *left;\n * struct TreeNode *right;\n * };\n */\nstruct TreeNode* insertIntoBST(struct TreeNode* root, int val) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * public int val;\n * public TreeNode left;\n * public TreeNode right;\n * public TreeNode(int val=0, TreeNode left=null, TreeNode right=null) {\n * this.val = val;\n * this.left = left;\n * this.right = right;\n * }\n * }\n */\npublic class Solution {\n public TreeNode InsertIntoBST(TreeNode root, int val) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * Definition for a binary tree node.\n * function TreeNode(val, left, right) {\n * this.val = (val===undefined ? 0 : val)\n * this.left = (left===undefined ? null : left)\n * this.right = (right===undefined ? null : right)\n * }\n */\n/**\n * @param {TreeNode} root\n * @param {number} val\n * @return {TreeNode}\n */\nvar insertIntoBST = function(root, val) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * val: number\n * left: TreeNode | null\n * right: TreeNode | null\n * constructor(val?: number, left?: TreeNode | null, right?: TreeNode | null) {\n * this.val = (val===undefined ? 0 : val)\n * this.left = (left===undefined ? null : left)\n * this.right = (right===undefined ? null : right)\n * }\n * }\n */\n\nfunction insertIntoBST(root: TreeNode | null, val: number): TreeNode | null {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * public $val = null;\n * public $left = null;\n * public $right = null;\n * function __construct($val = 0, $left = null, $right = null) {\n * $this->val = $val;\n * $this->left = $left;\n * $this->right = $right;\n * }\n * }\n */\nclass Solution {\n\n /**\n * @param TreeNode $root\n * @param Integer $val\n * @return TreeNode\n */\n function insertIntoBST($root, $val) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * public var val: Int\n * public var left: TreeNode?\n * public var right: TreeNode?\n * public init() { self.val = 0; self.left = nil; self.right = nil; }\n * public init(_ val: Int) { self.val = val; self.left = nil; self.right = nil; }\n * public init(_ val: Int, _ left: TreeNode?, _ right: TreeNode?) {\n * self.val = val\n * self.left = left\n * self.right = right\n * }\n * }\n */\nclass Solution {\n func insertIntoBST(_ root: TreeNode?, _ val: Int) -> TreeNode? {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "/**\n * Example:\n * var ti = TreeNode(5)\n * var v = ti.`val`\n * Definition for a binary tree node.\n * class TreeNode(var `val`: Int) {\n * var left: TreeNode? = null\n * var right: TreeNode? = null\n * }\n */\nclass Solution {\n fun insertIntoBST(root: TreeNode?, `val`: Int): TreeNode? {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * int val;\n * TreeNode? left;\n * TreeNode? right;\n * TreeNode([this.val = 0, this.left, this.right]);\n * }\n */\nclass Solution {\n TreeNode? insertIntoBST(TreeNode? root, int val) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "/**\n * Definition for a binary tree node.\n * type TreeNode struct {\n * Val int\n * Left *TreeNode\n * Right *TreeNode\n * }\n */\nfunc insertIntoBST(root *TreeNode, val int) *TreeNode {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# Definition for a binary tree node.\n# class TreeNode\n# attr_accessor :val, :left, :right\n# def initialize(val = 0, left = nil, right = nil)\n# @val = val\n# @left = left\n# @right = right\n# end\n# end\n# @param {TreeNode} root\n# @param {Integer} val\n# @return {TreeNode}\ndef insert_into_bst(root, val)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "/**\n * Definition for a binary tree node.\n * class TreeNode(_value: Int = 0, _left: TreeNode = null, _right: TreeNode = null) {\n * var value: Int = _value\n * var left: TreeNode = _left\n * var right: TreeNode = _right\n * }\n */\nobject Solution {\n def insertIntoBST(root: TreeNode, `val`: Int): TreeNode = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "// Definition for a binary tree node.\n// #[derive(Debug, PartialEq, Eq)]\n// pub struct TreeNode {\n// pub val: i32,\n// pub left: Option<Rc<RefCell<TreeNode>>>,\n// pub right: Option<Rc<RefCell<TreeNode>>>,\n// }\n// \n// impl TreeNode {\n// #[inline]\n// pub fn new(val: i32) -> Self {\n// TreeNode {\n// val,\n// left: None,\n// right: None\n// }\n// }\n// }\nuse std::rc::Rc;\nuse std::cell::RefCell;\nimpl Solution {\n pub fn insert_into_bst(root: Option<Rc<RefCell<TreeNode>>>, val: i32) -> Option<Rc<RefCell<TreeNode>>> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "; Definition for a binary tree node.\n#|\n\n; val : integer?\n; left : (or/c tree-node? #f)\n; right : (or/c tree-node? #f)\n(struct tree-node\n (val left right) #:mutable #:transparent)\n\n; constructor\n(define (make-tree-node [val 0])\n (tree-node val #f #f))\n\n|#\n\n(define/contract (insert-into-bst root val)\n (-> (or/c tree-node? #f) exact-integer? (or/c tree-node? #f))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "%% Definition for a binary tree node.\n%%\n%% -record(tree_node, {val = 0 :: integer(),\n%% left = null :: 'null' | #tree_node{},\n%% right = null :: 'null' | #tree_node{}}).\n\n-spec insert_into_bst(Root :: #tree_node{} | null, Val :: integer()) -> #tree_node{} | null.\ninsert_into_bst(Root, Val) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "# Definition for a binary tree node.\n#\n# defmodule TreeNode do\n# @type t :: %__MODULE__{\n# val: integer,\n# left: TreeNode.t() | nil,\n# right: TreeNode.t() | nil\n# }\n# defstruct val: 0, left: nil, right: nil\n# end\n\ndefmodule Solution do\n @spec insert_into_bst(root :: TreeNode.t | nil, val :: integer) :: TreeNode.t | nil\n def insert_into_bst(root, val) do\n \n end\nend"}] | [4,2,7,1,3]
5 | {
"name": "insertIntoBST",
"params": [
{
"name": "root",
"type": "TreeNode"
},
{
"name": "val",
"type": "integer"
}
],
"return": {
"type": "TreeNode"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Tree', 'Binary Search Tree', 'Binary Tree'] |
702 | Search in a Sorted Array of Unknown Size | search-in-a-sorted-array-of-unknown-size | null | Medium | 106K | 145.9K | 106,030 | 145,870 | 72.7% | ['binary-search', 'find-the-index-of-the-large-integer'] | [] | Algorithms | null | [-1,0,3,5,9,12]
9 | {
"name": "search",
"params": [
{
"name": "secret",
"type": "integer[]"
},
{
"name": "target",
"type": "integer"
}
],
"return": {
"type": "integer"
},
"languages": [
"cpp",
"java",
"python",
"c",
"javascript",
"golang",
"python3",
"kotlin",
"csharp",
"scala",
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"manual": true,
"typescriptCustomType":"class ArrayReader {\n reader: number[];\n constructor(array: number[]) {\n this.reader = array;\n };\n\n\tget(index: number): number {\n if (index >= 0 && index < this.reader.length) {\n return this.reader[index];\n }\n return 2147483647;\n };\n};"
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"]} | ['Array', 'Binary Search', 'Interactive'] |
703 | Kth Largest Element in a Stream | kth-largest-element-in-a-stream | <p>You are part of a university admissions office and need to keep track of the <code>kth</code> highest test score from applicants in real-time. This helps to determine cut-off marks for interviews and admissions dynamically as new applicants submit their scores.</p>
<p>You are tasked to implement a class which, for a given integer <code>k</code>, maintains a stream of test scores and continuously returns the <code>k</code>th highest test score <strong>after</strong> a new score has been submitted. More specifically, we are looking for the <code>k</code>th highest score in the sorted list of all scores.</p>
<p>Implement the <code>KthLargest</code> class:</p>
<ul>
<li><code>KthLargest(int k, int[] nums)</code> Initializes the object with the integer <code>k</code> and the stream of test scores <code>nums</code>.</li>
<li><code>int add(int val)</code> Adds a new test score <code>val</code> to the stream and returns the element representing the <code>k<sup>th</sup></code> largest element in the pool of test scores so far.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<div class="example-block">
<p><strong>Input:</strong><br />
<span class="example-io">["KthLargest", "add", "add", "add", "add", "add"]<br />
[[3, [4, 5, 8, 2]], [3], [5], [10], [9], [4]]</span></p>
<p><strong>Output:</strong> <span class="example-io">[null, 4, 5, 5, 8, 8]</span></p>
<p><strong>Explanation:</strong></p>
<p>KthLargest kthLargest = new KthLargest(3, [4, 5, 8, 2]);<br />
kthLargest.add(3); // return 4<br />
kthLargest.add(5); // return 5<br />
kthLargest.add(10); // return 5<br />
kthLargest.add(9); // return 8<br />
kthLargest.add(4); // return 8</p>
</div>
<p><strong class="example">Example 2:</strong></p>
<div class="example-block">
<p><strong>Input:</strong><br />
<span class="example-io">["KthLargest", "add", "add", "add", "add"]<br />
[[4, [7, 7, 7, 7, 8, 3]], [2], [10], [9], [9]]</span></p>
<p><strong>Output:</strong> <span class="example-io">[null, 7, 7, 7, 8]</span></p>
<p><strong>Explanation:</strong></p>
KthLargest kthLargest = new KthLargest(4, [7, 7, 7, 7, 8, 3]);<br />
kthLargest.add(2); // return 7<br />
kthLargest.add(10); // return 7<br />
kthLargest.add(9); // return 7<br />
kthLargest.add(9); // return 8</div>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= nums.length <= 10<sup>4</sup></code></li>
<li><code>1 <= k <= nums.length + 1</code></li>
<li><code>-10<sup>4</sup> <= nums[i] <= 10<sup>4</sup></code></li>
<li><code>-10<sup>4</sup> <= val <= 10<sup>4</sup></code></li>
<li>At most <code>10<sup>4</sup></code> calls will be made to <code>add</code>.</li>
</ul>
| Easy | 795.7K | 1.3M | 795,739 | 1,331,132 | 59.8% | ['kth-largest-element-in-an-array', 'finding-mk-average', 'sequentially-ordinal-rank-tracker'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class KthLargest {\npublic:\n KthLargest(int k, vector<int>& nums) {\n \n }\n \n int add(int val) {\n \n }\n};\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * KthLargest* obj = new KthLargest(k, nums);\n * int param_1 = obj->add(val);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class KthLargest {\n\n public KthLargest(int k, int[] nums) {\n \n }\n \n public int add(int val) {\n \n }\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * KthLargest obj = new KthLargest(k, nums);\n * int param_1 = obj.add(val);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class KthLargest(object):\n\n def __init__(self, k, nums):\n \"\"\"\n :type k: int\n :type nums: List[int]\n \"\"\"\n \n\n def add(self, val):\n \"\"\"\n :type val: int\n :rtype: int\n \"\"\"\n \n\n\n# Your KthLargest object will be instantiated and called as such:\n# obj = KthLargest(k, nums)\n# param_1 = obj.add(val)"}, {"value": "python3", "text": "Python3", "defaultCode": "class KthLargest:\n\n def __init__(self, k: int, nums: List[int]):\n \n\n def add(self, val: int) -> int:\n \n\n\n# Your KthLargest object will be instantiated and called as such:\n# obj = KthLargest(k, nums)\n# param_1 = obj.add(val)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} KthLargest;\n\n\nKthLargest* kthLargestCreate(int k, int* nums, int numsSize) {\n \n}\n\nint kthLargestAdd(KthLargest* obj, int val) {\n \n}\n\nvoid kthLargestFree(KthLargest* obj) {\n \n}\n\n/**\n * Your KthLargest struct will be instantiated and called as such:\n * KthLargest* obj = kthLargestCreate(k, nums, numsSize);\n * int param_1 = kthLargestAdd(obj, val);\n \n * kthLargestFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class KthLargest {\n\n public KthLargest(int k, int[] nums) {\n \n }\n \n public int Add(int val) {\n \n }\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * KthLargest obj = new KthLargest(k, nums);\n * int param_1 = obj.Add(val);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} k\n * @param {number[]} nums\n */\nvar KthLargest = function(k, nums) {\n \n};\n\n/** \n * @param {number} val\n * @return {number}\n */\nKthLargest.prototype.add = function(val) {\n \n};\n\n/** \n * Your KthLargest object will be instantiated and called as such:\n * var obj = new KthLargest(k, nums)\n * var param_1 = obj.add(val)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class KthLargest {\n constructor(k: number, nums: number[]) {\n \n }\n\n add(val: number): number {\n \n }\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * var obj = new KthLargest(k, nums)\n * var param_1 = obj.add(val)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class KthLargest {\n /**\n * @param Integer $k\n * @param Integer[] $nums\n */\n function __construct($k, $nums) {\n \n }\n \n /**\n * @param Integer $val\n * @return Integer\n */\n function add($val) {\n \n }\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * $obj = KthLargest($k, $nums);\n * $ret_1 = $obj->add($val);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass KthLargest {\n\n init(_ k: Int, _ nums: [Int]) {\n \n }\n \n func add(_ val: Int) -> Int {\n \n }\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * let obj = KthLargest(k, nums)\n * let ret_1: Int = obj.add(val)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class KthLargest(k: Int, nums: IntArray) {\n\n fun add(`val`: Int): Int {\n \n }\n\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * var obj = KthLargest(k, nums)\n * var param_1 = obj.add(`val`)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class KthLargest {\n\n KthLargest(int k, List<int> nums) {\n \n }\n \n int add(int val) {\n \n }\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * KthLargest obj = KthLargest(k, nums);\n * int param1 = obj.add(val);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type KthLargest struct {\n \n}\n\n\nfunc Constructor(k int, nums []int) KthLargest {\n \n}\n\n\nfunc (this *KthLargest) Add(val int) int {\n \n}\n\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * obj := Constructor(k, nums);\n * param_1 := obj.Add(val);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class KthLargest\n\n=begin\n :type k: Integer\n :type nums: Integer[]\n=end\n def initialize(k, nums)\n \n end\n\n\n=begin\n :type val: Integer\n :rtype: Integer\n=end\n def add(val)\n \n end\n\n\nend\n\n# Your KthLargest object will be instantiated and called as such:\n# obj = KthLargest.new(k, nums)\n# param_1 = obj.add(val)"}, {"value": "scala", "text": "Scala", "defaultCode": "class KthLargest(_k: Int, _nums: Array[Int]) {\n\n def add(`val`: Int): Int = {\n \n }\n\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * val obj = new KthLargest(k, nums)\n * val param_1 = obj.add(`val`)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct KthLargest {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl KthLargest {\n\n fn new(k: i32, nums: Vec<i32>) -> Self {\n \n }\n \n fn add(&self, val: i32) -> i32 {\n \n }\n}\n\n/**\n * Your KthLargest object will be instantiated and called as such:\n * let obj = KthLargest::new(k, nums);\n * let ret_1: i32 = obj.add(val);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define kth-largest%\n (class object%\n (super-new)\n \n ; k : exact-integer?\n ; nums : (listof exact-integer?)\n (init-field\n k\n nums)\n \n ; add : exact-integer? -> exact-integer?\n (define/public (add val)\n )))\n\n;; Your kth-largest% object will be instantiated and called as such:\n;; (define obj (new kth-largest% [k k] [nums nums]))\n;; (define param_1 (send obj add val))"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec kth_largest_init_(K :: integer(), Nums :: [integer()]) -> any().\nkth_largest_init_(K, Nums) ->\n .\n\n-spec kth_largest_add(Val :: integer()) -> integer().\nkth_largest_add(Val) ->\n .\n\n\n%% Your functions will be called as such:\n%% kth_largest_init_(K, Nums),\n%% Param_1 = kth_largest_add(Val),\n\n%% kth_largest_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule KthLargest do\n @spec init_(k :: integer, nums :: [integer]) :: any\n def init_(k, nums) do\n \n end\n\n @spec add(val :: integer) :: integer\n def add(val) do\n \n end\nend\n\n# Your functions will be called as such:\n# KthLargest.init_(k, nums)\n# param_1 = KthLargest.add(val)\n\n# KthLargest.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["KthLargest","add","add","add","add","add"]
[[3,[4,5,8,2]],[3],[5],[10],[9],[4]] | {
"classname": "KthLargest",
"constructor": {
"params": [
{
"type": "integer",
"name": "k"
},
{
"type": "integer[]",
"name": "nums"
},
{
"type": "integer",
"name": "numsSize",
"lang": "c",
"value": "size_2"
}
]
},
"methods": [
{
"name": "add",
"params": [
{
"type": "integer",
"name": "val"
}
],
"return": {
"type": "integer"
}
}
],
"systemdesign": true,
"params": [
{
"name": "starts",
"type": "integer[]"
},
{
"name": "ends",
"type": "integer[]"
}
],
"return": {
"type": "list<boolean>",
"dealloc": true
},
"manual": false
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Tree', 'Design', 'Binary Search Tree', 'Heap (Priority Queue)', 'Binary Tree', 'Data Stream'] |
704 | Binary Search | binary-search | <p>Given an array of integers <code>nums</code> which is sorted in ascending order, and an integer <code>target</code>, write a function to search <code>target</code> in <code>nums</code>. If <code>target</code> exists, then return its index. Otherwise, return <code>-1</code>.</p>
<p>You must write an algorithm with <code>O(log n)</code> runtime complexity.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [-1,0,3,5,9,12], target = 9
<strong>Output:</strong> 4
<strong>Explanation:</strong> 9 exists in nums and its index is 4
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [-1,0,3,5,9,12], target = 2
<strong>Output:</strong> -1
<strong>Explanation:</strong> 2 does not exist in nums so return -1
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= nums.length <= 10<sup>4</sup></code></li>
<li><code>-10<sup>4</sup> < nums[i], target < 10<sup>4</sup></code></li>
<li>All the integers in <code>nums</code> are <strong>unique</strong>.</li>
<li><code>nums</code> is sorted in ascending order.</li>
</ul>
| Easy | 3.1M | 5.2M | 3,071,620 | 5,180,016 | 59.3% | ['search-in-a-sorted-array-of-unknown-size', 'maximum-count-of-positive-integer-and-negative-integer'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int search(vector<int>& nums, int target) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int search(int[] nums, int target) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def search(self, nums, target):\n \"\"\"\n :type nums: List[int]\n :type target: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def search(self, nums: List[int], target: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int search(int* nums, int numsSize, int target) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int Search(int[] nums, int target) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @param {number} target\n * @return {number}\n */\nvar search = function(nums, target) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function search(nums: number[], target: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @param Integer $target\n * @return Integer\n */\n function search($nums, $target) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func search(_ nums: [Int], _ target: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun search(nums: IntArray, target: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int search(List<int> nums, int target) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func search(nums []int, target int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @param {Integer} target\n# @return {Integer}\ndef search(nums, target)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def search(nums: Array[Int], target: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn search(nums: Vec<i32>, target: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (search nums target)\n (-> (listof exact-integer?) exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec search(Nums :: [integer()], Target :: integer()) -> integer().\nsearch(Nums, Target) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec search(nums :: [integer], target :: integer) :: integer\n def search(nums, target) do\n \n end\nend"}] | [-1,0,3,5,9,12]
9 | {
"name": "search",
"params": [
{
"name": "nums",
"type": "integer[]"
},
{
"name": "target",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Binary Search'] |
705 | Design HashSet | design-hashset | <p>Design a HashSet without using any built-in hash table libraries.</p>
<p>Implement <code>MyHashSet</code> class:</p>
<ul>
<li><code>void add(key)</code> Inserts the value <code>key</code> into the HashSet.</li>
<li><code>bool contains(key)</code> Returns whether the value <code>key</code> exists in the HashSet or not.</li>
<li><code>void remove(key)</code> Removes the value <code>key</code> in the HashSet. If <code>key</code> does not exist in the HashSet, do nothing.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["MyHashSet", "add", "add", "contains", "contains", "add", "contains", "remove", "contains"]
[[], [1], [2], [1], [3], [2], [2], [2], [2]]
<strong>Output</strong>
[null, null, null, true, false, null, true, null, false]
<strong>Explanation</strong>
MyHashSet myHashSet = new MyHashSet();
myHashSet.add(1); // set = [1]
myHashSet.add(2); // set = [1, 2]
myHashSet.contains(1); // return True
myHashSet.contains(3); // return False, (not found)
myHashSet.add(2); // set = [1, 2]
myHashSet.contains(2); // return True
myHashSet.remove(2); // set = [1]
myHashSet.contains(2); // return False, (already removed)</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= key <= 10<sup>6</sup></code></li>
<li>At most <code>10<sup>4</sup></code> calls will be made to <code>add</code>, <code>remove</code>, and <code>contains</code>.</li>
</ul>
| Easy | 483.4K | 718.1K | 483,386 | 718,074 | 67.3% | ['design-hashmap', 'design-skiplist'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class MyHashSet {\npublic:\n MyHashSet() {\n \n }\n \n void add(int key) {\n \n }\n \n void remove(int key) {\n \n }\n \n bool contains(int key) {\n \n }\n};\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * MyHashSet* obj = new MyHashSet();\n * obj->add(key);\n * obj->remove(key);\n * bool param_3 = obj->contains(key);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class MyHashSet {\n\n public MyHashSet() {\n \n }\n \n public void add(int key) {\n \n }\n \n public void remove(int key) {\n \n }\n \n public boolean contains(int key) {\n \n }\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * MyHashSet obj = new MyHashSet();\n * obj.add(key);\n * obj.remove(key);\n * boolean param_3 = obj.contains(key);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class MyHashSet(object):\n\n def __init__(self):\n \n\n def add(self, key):\n \"\"\"\n :type key: int\n :rtype: None\n \"\"\"\n \n\n def remove(self, key):\n \"\"\"\n :type key: int\n :rtype: None\n \"\"\"\n \n\n def contains(self, key):\n \"\"\"\n :type key: int\n :rtype: bool\n \"\"\"\n \n\n\n# Your MyHashSet object will be instantiated and called as such:\n# obj = MyHashSet()\n# obj.add(key)\n# obj.remove(key)\n# param_3 = obj.contains(key)"}, {"value": "python3", "text": "Python3", "defaultCode": "class MyHashSet:\n\n def __init__(self):\n \n\n def add(self, key: int) -> None:\n \n\n def remove(self, key: int) -> None:\n \n\n def contains(self, key: int) -> bool:\n \n\n\n# Your MyHashSet object will be instantiated and called as such:\n# obj = MyHashSet()\n# obj.add(key)\n# obj.remove(key)\n# param_3 = obj.contains(key)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} MyHashSet;\n\n\nMyHashSet* myHashSetCreate() {\n \n}\n\nvoid myHashSetAdd(MyHashSet* obj, int key) {\n \n}\n\nvoid myHashSetRemove(MyHashSet* obj, int key) {\n \n}\n\nbool myHashSetContains(MyHashSet* obj, int key) {\n \n}\n\nvoid myHashSetFree(MyHashSet* obj) {\n \n}\n\n/**\n * Your MyHashSet struct will be instantiated and called as such:\n * MyHashSet* obj = myHashSetCreate();\n * myHashSetAdd(obj, key);\n \n * myHashSetRemove(obj, key);\n \n * bool param_3 = myHashSetContains(obj, key);\n \n * myHashSetFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class MyHashSet {\n\n public MyHashSet() {\n \n }\n \n public void Add(int key) {\n \n }\n \n public void Remove(int key) {\n \n }\n \n public bool Contains(int key) {\n \n }\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * MyHashSet obj = new MyHashSet();\n * obj.Add(key);\n * obj.Remove(key);\n * bool param_3 = obj.Contains(key);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "\nvar MyHashSet = function() {\n \n};\n\n/** \n * @param {number} key\n * @return {void}\n */\nMyHashSet.prototype.add = function(key) {\n \n};\n\n/** \n * @param {number} key\n * @return {void}\n */\nMyHashSet.prototype.remove = function(key) {\n \n};\n\n/** \n * @param {number} key\n * @return {boolean}\n */\nMyHashSet.prototype.contains = function(key) {\n \n};\n\n/** \n * Your MyHashSet object will be instantiated and called as such:\n * var obj = new MyHashSet()\n * obj.add(key)\n * obj.remove(key)\n * var param_3 = obj.contains(key)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class MyHashSet {\n constructor() {\n \n }\n\n add(key: number): void {\n \n }\n\n remove(key: number): void {\n \n }\n\n contains(key: number): boolean {\n \n }\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * var obj = new MyHashSet()\n * obj.add(key)\n * obj.remove(key)\n * var param_3 = obj.contains(key)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class MyHashSet {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param Integer $key\n * @return NULL\n */\n function add($key) {\n \n }\n \n /**\n * @param Integer $key\n * @return NULL\n */\n function remove($key) {\n \n }\n \n /**\n * @param Integer $key\n * @return Boolean\n */\n function contains($key) {\n \n }\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * $obj = MyHashSet();\n * $obj->add($key);\n * $obj->remove($key);\n * $ret_3 = $obj->contains($key);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass MyHashSet {\n\n init() {\n \n }\n \n func add(_ key: Int) {\n \n }\n \n func remove(_ key: Int) {\n \n }\n \n func contains(_ key: Int) -> Bool {\n \n }\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * let obj = MyHashSet()\n * obj.add(key)\n * obj.remove(key)\n * let ret_3: Bool = obj.contains(key)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class MyHashSet() {\n\n fun add(key: Int) {\n \n }\n\n fun remove(key: Int) {\n \n }\n\n fun contains(key: Int): Boolean {\n \n }\n\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * var obj = MyHashSet()\n * obj.add(key)\n * obj.remove(key)\n * var param_3 = obj.contains(key)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class MyHashSet {\n\n MyHashSet() {\n \n }\n \n void add(int key) {\n \n }\n \n void remove(int key) {\n \n }\n \n bool contains(int key) {\n \n }\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * MyHashSet obj = MyHashSet();\n * obj.add(key);\n * obj.remove(key);\n * bool param3 = obj.contains(key);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type MyHashSet struct {\n \n}\n\n\nfunc Constructor() MyHashSet {\n \n}\n\n\nfunc (this *MyHashSet) Add(key int) {\n \n}\n\n\nfunc (this *MyHashSet) Remove(key int) {\n \n}\n\n\nfunc (this *MyHashSet) Contains(key int) bool {\n \n}\n\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * obj := Constructor();\n * obj.Add(key);\n * obj.Remove(key);\n * param_3 := obj.Contains(key);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class MyHashSet\n def initialize()\n \n end\n\n\n=begin\n :type key: Integer\n :rtype: Void\n=end\n def add(key)\n \n end\n\n\n=begin\n :type key: Integer\n :rtype: Void\n=end\n def remove(key)\n \n end\n\n\n=begin\n :type key: Integer\n :rtype: Boolean\n=end\n def contains(key)\n \n end\n\n\nend\n\n# Your MyHashSet object will be instantiated and called as such:\n# obj = MyHashSet.new()\n# obj.add(key)\n# obj.remove(key)\n# param_3 = obj.contains(key)"}, {"value": "scala", "text": "Scala", "defaultCode": "class MyHashSet() {\n\n def add(key: Int): Unit = {\n \n }\n\n def remove(key: Int): Unit = {\n \n }\n\n def contains(key: Int): Boolean = {\n \n }\n\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * val obj = new MyHashSet()\n * obj.add(key)\n * obj.remove(key)\n * val param_3 = obj.contains(key)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct MyHashSet {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl MyHashSet {\n\n fn new() -> Self {\n \n }\n \n fn add(&self, key: i32) {\n \n }\n \n fn remove(&self, key: i32) {\n \n }\n \n fn contains(&self, key: i32) -> bool {\n \n }\n}\n\n/**\n * Your MyHashSet object will be instantiated and called as such:\n * let obj = MyHashSet::new();\n * obj.add(key);\n * obj.remove(key);\n * let ret_3: bool = obj.contains(key);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define my-hash-set%\n (class object%\n (super-new)\n \n (init-field)\n \n ; add : exact-integer? -> void?\n (define/public (add key)\n )\n ; remove : exact-integer? -> void?\n (define/public (remove key)\n )\n ; contains : exact-integer? -> boolean?\n (define/public (contains key)\n )))\n\n;; Your my-hash-set% object will be instantiated and called as such:\n;; (define obj (new my-hash-set%))\n;; (send obj add key)\n;; (send obj remove key)\n;; (define param_3 (send obj contains key))"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec my_hash_set_init_() -> any().\nmy_hash_set_init_() ->\n .\n\n-spec my_hash_set_add(Key :: integer()) -> any().\nmy_hash_set_add(Key) ->\n .\n\n-spec my_hash_set_remove(Key :: integer()) -> any().\nmy_hash_set_remove(Key) ->\n .\n\n-spec my_hash_set_contains(Key :: integer()) -> boolean().\nmy_hash_set_contains(Key) ->\n .\n\n\n%% Your functions will be called as such:\n%% my_hash_set_init_(),\n%% my_hash_set_add(Key),\n%% my_hash_set_remove(Key),\n%% Param_3 = my_hash_set_contains(Key),\n\n%% my_hash_set_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule MyHashSet do\n @spec init_() :: any\n def init_() do\n \n end\n\n @spec add(key :: integer) :: any\n def add(key) do\n \n end\n\n @spec remove(key :: integer) :: any\n def remove(key) do\n \n end\n\n @spec contains(key :: integer) :: boolean\n def contains(key) do\n \n end\nend\n\n# Your functions will be called as such:\n# MyHashSet.init_()\n# MyHashSet.add(key)\n# MyHashSet.remove(key)\n# param_3 = MyHashSet.contains(key)\n\n# MyHashSet.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["MyHashSet","add","add","contains","contains","add","contains","remove","contains"]
[[],[1],[2],[1],[3],[2],[2],[2],[2]] | {
"classname": "MyHashSet",
"constructor": {
"params": []
},
"methods": [
{
"params": [
{
"type": "integer",
"name": "key"
}
],
"name": "add",
"return": {
"type": "void"
}
},
{
"params": [
{
"type": "integer",
"name": "key"
}
],
"return": {
"type": "void"
},
"name": "remove"
},
{
"params": [
{
"type": "integer",
"name": "key"
}
],
"return": {
"type": "boolean"
},
"name": "contains"
}
],
"return": {
"type": "boolean"
},
"systemdesign": true
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'Linked List', 'Design', 'Hash Function'] |
706 | Design HashMap | design-hashmap | <p>Design a HashMap without using any built-in hash table libraries.</p>
<p>Implement the <code>MyHashMap</code> class:</p>
<ul>
<li><code>MyHashMap()</code> initializes the object with an empty map.</li>
<li><code>void put(int key, int value)</code> inserts a <code>(key, value)</code> pair into the HashMap. If the <code>key</code> already exists in the map, update the corresponding <code>value</code>.</li>
<li><code>int get(int key)</code> returns the <code>value</code> to which the specified <code>key</code> is mapped, or <code>-1</code> if this map contains no mapping for the <code>key</code>.</li>
<li><code>void remove(key)</code> removes the <code>key</code> and its corresponding <code>value</code> if the map contains the mapping for the <code>key</code>.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["MyHashMap", "put", "put", "get", "get", "put", "get", "remove", "get"]
[[], [1, 1], [2, 2], [1], [3], [2, 1], [2], [2], [2]]
<strong>Output</strong>
[null, null, null, 1, -1, null, 1, null, -1]
<strong>Explanation</strong>
MyHashMap myHashMap = new MyHashMap();
myHashMap.put(1, 1); // The map is now [[1,1]]
myHashMap.put(2, 2); // The map is now [[1,1], [2,2]]
myHashMap.get(1); // return 1, The map is now [[1,1], [2,2]]
myHashMap.get(3); // return -1 (i.e., not found), The map is now [[1,1], [2,2]]
myHashMap.put(2, 1); // The map is now [[1,1], [2,1]] (i.e., update the existing value)
myHashMap.get(2); // return 1, The map is now [[1,1], [2,1]]
myHashMap.remove(2); // remove the mapping for 2, The map is now [[1,1]]
myHashMap.get(2); // return -1 (i.e., not found), The map is now [[1,1]]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= key, value <= 10<sup>6</sup></code></li>
<li>At most <code>10<sup>4</sup></code> calls will be made to <code>put</code>, <code>get</code>, and <code>remove</code>.</li>
</ul>
| Easy | 657K | 1000K | 656,998 | 999,960 | 65.7% | ['design-hashset', 'design-skiplist'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class MyHashMap {\npublic:\n MyHashMap() {\n \n }\n \n void put(int key, int value) {\n \n }\n \n int get(int key) {\n \n }\n \n void remove(int key) {\n \n }\n};\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * MyHashMap* obj = new MyHashMap();\n * obj->put(key,value);\n * int param_2 = obj->get(key);\n * obj->remove(key);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class MyHashMap {\n\n public MyHashMap() {\n \n }\n \n public void put(int key, int value) {\n \n }\n \n public int get(int key) {\n \n }\n \n public void remove(int key) {\n \n }\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * MyHashMap obj = new MyHashMap();\n * obj.put(key,value);\n * int param_2 = obj.get(key);\n * obj.remove(key);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class MyHashMap(object):\n\n def __init__(self):\n \n\n def put(self, key, value):\n \"\"\"\n :type key: int\n :type value: int\n :rtype: None\n \"\"\"\n \n\n def get(self, key):\n \"\"\"\n :type key: int\n :rtype: int\n \"\"\"\n \n\n def remove(self, key):\n \"\"\"\n :type key: int\n :rtype: None\n \"\"\"\n \n\n\n# Your MyHashMap object will be instantiated and called as such:\n# obj = MyHashMap()\n# obj.put(key,value)\n# param_2 = obj.get(key)\n# obj.remove(key)"}, {"value": "python3", "text": "Python3", "defaultCode": "class MyHashMap:\n\n def __init__(self):\n \n\n def put(self, key: int, value: int) -> None:\n \n\n def get(self, key: int) -> int:\n \n\n def remove(self, key: int) -> None:\n \n\n\n# Your MyHashMap object will be instantiated and called as such:\n# obj = MyHashMap()\n# obj.put(key,value)\n# param_2 = obj.get(key)\n# obj.remove(key)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} MyHashMap;\n\n\nMyHashMap* myHashMapCreate() {\n \n}\n\nvoid myHashMapPut(MyHashMap* obj, int key, int value) {\n \n}\n\nint myHashMapGet(MyHashMap* obj, int key) {\n \n}\n\nvoid myHashMapRemove(MyHashMap* obj, int key) {\n \n}\n\nvoid myHashMapFree(MyHashMap* obj) {\n \n}\n\n/**\n * Your MyHashMap struct will be instantiated and called as such:\n * MyHashMap* obj = myHashMapCreate();\n * myHashMapPut(obj, key, value);\n \n * int param_2 = myHashMapGet(obj, key);\n \n * myHashMapRemove(obj, key);\n \n * myHashMapFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class MyHashMap {\n\n public MyHashMap() {\n \n }\n \n public void Put(int key, int value) {\n \n }\n \n public int Get(int key) {\n \n }\n \n public void Remove(int key) {\n \n }\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * MyHashMap obj = new MyHashMap();\n * obj.Put(key,value);\n * int param_2 = obj.Get(key);\n * obj.Remove(key);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "\nvar MyHashMap = function() {\n \n};\n\n/** \n * @param {number} key \n * @param {number} value\n * @return {void}\n */\nMyHashMap.prototype.put = function(key, value) {\n \n};\n\n/** \n * @param {number} key\n * @return {number}\n */\nMyHashMap.prototype.get = function(key) {\n \n};\n\n/** \n * @param {number} key\n * @return {void}\n */\nMyHashMap.prototype.remove = function(key) {\n \n};\n\n/** \n * Your MyHashMap object will be instantiated and called as such:\n * var obj = new MyHashMap()\n * obj.put(key,value)\n * var param_2 = obj.get(key)\n * obj.remove(key)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class MyHashMap {\n constructor() {\n \n }\n\n put(key: number, value: number): void {\n \n }\n\n get(key: number): number {\n \n }\n\n remove(key: number): void {\n \n }\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * var obj = new MyHashMap()\n * obj.put(key,value)\n * var param_2 = obj.get(key)\n * obj.remove(key)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class MyHashMap {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param Integer $key\n * @param Integer $value\n * @return NULL\n */\n function put($key, $value) {\n \n }\n \n /**\n * @param Integer $key\n * @return Integer\n */\n function get($key) {\n \n }\n \n /**\n * @param Integer $key\n * @return NULL\n */\n function remove($key) {\n \n }\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * $obj = MyHashMap();\n * $obj->put($key, $value);\n * $ret_2 = $obj->get($key);\n * $obj->remove($key);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass MyHashMap {\n\n init() {\n \n }\n \n func put(_ key: Int, _ value: Int) {\n \n }\n \n func get(_ key: Int) -> Int {\n \n }\n \n func remove(_ key: Int) {\n \n }\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * let obj = MyHashMap()\n * obj.put(key, value)\n * let ret_2: Int = obj.get(key)\n * obj.remove(key)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class MyHashMap() {\n\n fun put(key: Int, value: Int) {\n \n }\n\n fun get(key: Int): Int {\n \n }\n\n fun remove(key: Int) {\n \n }\n\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * var obj = MyHashMap()\n * obj.put(key,value)\n * var param_2 = obj.get(key)\n * obj.remove(key)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class MyHashMap {\n\n MyHashMap() {\n \n }\n \n void put(int key, int value) {\n \n }\n \n int get(int key) {\n \n }\n \n void remove(int key) {\n \n }\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * MyHashMap obj = MyHashMap();\n * obj.put(key,value);\n * int param2 = obj.get(key);\n * obj.remove(key);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type MyHashMap struct {\n \n}\n\n\nfunc Constructor() MyHashMap {\n \n}\n\n\nfunc (this *MyHashMap) Put(key int, value int) {\n \n}\n\n\nfunc (this *MyHashMap) Get(key int) int {\n \n}\n\n\nfunc (this *MyHashMap) Remove(key int) {\n \n}\n\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * obj := Constructor();\n * obj.Put(key,value);\n * param_2 := obj.Get(key);\n * obj.Remove(key);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class MyHashMap\n def initialize()\n \n end\n\n\n=begin\n :type key: Integer\n :type value: Integer\n :rtype: Void\n=end\n def put(key, value)\n \n end\n\n\n=begin\n :type key: Integer\n :rtype: Integer\n=end\n def get(key)\n \n end\n\n\n=begin\n :type key: Integer\n :rtype: Void\n=end\n def remove(key)\n \n end\n\n\nend\n\n# Your MyHashMap object will be instantiated and called as such:\n# obj = MyHashMap.new()\n# obj.put(key, value)\n# param_2 = obj.get(key)\n# obj.remove(key)"}, {"value": "scala", "text": "Scala", "defaultCode": "class MyHashMap() {\n\n def put(key: Int, value: Int): Unit = {\n \n }\n\n def get(key: Int): Int = {\n \n }\n\n def remove(key: Int): Unit = {\n \n }\n\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * val obj = new MyHashMap()\n * obj.put(key,value)\n * val param_2 = obj.get(key)\n * obj.remove(key)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct MyHashMap {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl MyHashMap {\n\n fn new() -> Self {\n \n }\n \n fn put(&self, key: i32, value: i32) {\n \n }\n \n fn get(&self, key: i32) -> i32 {\n \n }\n \n fn remove(&self, key: i32) {\n \n }\n}\n\n/**\n * Your MyHashMap object will be instantiated and called as such:\n * let obj = MyHashMap::new();\n * obj.put(key, value);\n * let ret_2: i32 = obj.get(key);\n * obj.remove(key);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define my-hash-map%\n (class object%\n (super-new)\n \n (init-field)\n \n ; put : exact-integer? exact-integer? -> void?\n (define/public (put key value)\n )\n ; get : exact-integer? -> exact-integer?\n (define/public (get key)\n )\n ; remove : exact-integer? -> void?\n (define/public (remove key)\n )))\n\n;; Your my-hash-map% object will be instantiated and called as such:\n;; (define obj (new my-hash-map%))\n;; (send obj put key value)\n;; (define param_2 (send obj get key))\n;; (send obj remove key)"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec my_hash_map_init_() -> any().\nmy_hash_map_init_() ->\n .\n\n-spec my_hash_map_put(Key :: integer(), Value :: integer()) -> any().\nmy_hash_map_put(Key, Value) ->\n .\n\n-spec my_hash_map_get(Key :: integer()) -> integer().\nmy_hash_map_get(Key) ->\n .\n\n-spec my_hash_map_remove(Key :: integer()) -> any().\nmy_hash_map_remove(Key) ->\n .\n\n\n%% Your functions will be called as such:\n%% my_hash_map_init_(),\n%% my_hash_map_put(Key, Value),\n%% Param_2 = my_hash_map_get(Key),\n%% my_hash_map_remove(Key),\n\n%% my_hash_map_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule MyHashMap do\n @spec init_() :: any\n def init_() do\n \n end\n\n @spec put(key :: integer, value :: integer) :: any\n def put(key, value) do\n \n end\n\n @spec get(key :: integer) :: integer\n def get(key) do\n \n end\n\n @spec remove(key :: integer) :: any\n def remove(key) do\n \n end\nend\n\n# Your functions will be called as such:\n# MyHashMap.init_()\n# MyHashMap.put(key, value)\n# param_2 = MyHashMap.get(key)\n# MyHashMap.remove(key)\n\n# MyHashMap.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["MyHashMap","put","put","get","get","put","get","remove","get"]
[[],[1,1],[2,2],[1],[3],[2,1],[2],[2],[2]] | {
"classname": "MyHashMap",
"constructor": {
"params": []
},
"methods": [
{
"params": [
{
"type": "integer",
"name": "key"
},
{
"type": "integer",
"name": "value"
}
],
"return": {
"type": "void"
},
"name": "put"
},
{
"params": [
{
"type": "integer",
"name": "key"
}
],
"return": {
"type": "integer"
},
"name": "get"
},
{
"params": [
{
"type": "integer",
"name": "key"
}
],
"return": {
"type": "void"
},
"name": "remove"
}
],
"return": {
"type": "boolean"
},
"systemdesign": true
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'Linked List', 'Design', 'Hash Function'] |
707 | Design Linked List | design-linked-list | <p>Design your implementation of the linked list. You can choose to use a singly or doubly linked list.<br />
A node in a singly linked list should have two attributes: <code>val</code> and <code>next</code>. <code>val</code> is the value of the current node, and <code>next</code> is a pointer/reference to the next node.<br />
If you want to use the doubly linked list, you will need one more attribute <code>prev</code> to indicate the previous node in the linked list. Assume all nodes in the linked list are <strong>0-indexed</strong>.</p>
<p>Implement the <code>MyLinkedList</code> class:</p>
<ul>
<li><code>MyLinkedList()</code> Initializes the <code>MyLinkedList</code> object.</li>
<li><code>int get(int index)</code> Get the value of the <code>index<sup>th</sup></code> node in the linked list. If the index is invalid, return <code>-1</code>.</li>
<li><code>void addAtHead(int val)</code> Add a node of value <code>val</code> before the first element of the linked list. After the insertion, the new node will be the first node of the linked list.</li>
<li><code>void addAtTail(int val)</code> Append a node of value <code>val</code> as the last element of the linked list.</li>
<li><code>void addAtIndex(int index, int val)</code> Add a node of value <code>val</code> before the <code>index<sup>th</sup></code> node in the linked list. If <code>index</code> equals the length of the linked list, the node will be appended to the end of the linked list. If <code>index</code> is greater than the length, the node <strong>will not be inserted</strong>.</li>
<li><code>void deleteAtIndex(int index)</code> Delete the <code>index<sup>th</sup></code> node in the linked list, if the index is valid.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["MyLinkedList", "addAtHead", "addAtTail", "addAtIndex", "get", "deleteAtIndex", "get"]
[[], [1], [3], [1, 2], [1], [1], [1]]
<strong>Output</strong>
[null, null, null, null, 2, null, 3]
<strong>Explanation</strong>
MyLinkedList myLinkedList = new MyLinkedList();
myLinkedList.addAtHead(1);
myLinkedList.addAtTail(3);
myLinkedList.addAtIndex(1, 2); // linked list becomes 1->2->3
myLinkedList.get(1); // return 2
myLinkedList.deleteAtIndex(1); // now the linked list is 1->3
myLinkedList.get(1); // return 3
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= index, val <= 1000</code></li>
<li>Please do not use the built-in LinkedList library.</li>
<li>At most <code>2000</code> calls will be made to <code>get</code>, <code>addAtHead</code>, <code>addAtTail</code>, <code>addAtIndex</code> and <code>deleteAtIndex</code>.</li>
</ul>
| Medium | 398.7K | 1.4M | 398,724 | 1,376,477 | 29.0% | ['design-skiplist'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class MyLinkedList {\npublic:\n MyLinkedList() {\n \n }\n \n int get(int index) {\n \n }\n \n void addAtHead(int val) {\n \n }\n \n void addAtTail(int val) {\n \n }\n \n void addAtIndex(int index, int val) {\n \n }\n \n void deleteAtIndex(int index) {\n \n }\n};\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * MyLinkedList* obj = new MyLinkedList();\n * int param_1 = obj->get(index);\n * obj->addAtHead(val);\n * obj->addAtTail(val);\n * obj->addAtIndex(index,val);\n * obj->deleteAtIndex(index);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class MyLinkedList {\n\n public MyLinkedList() {\n \n }\n \n public int get(int index) {\n \n }\n \n public void addAtHead(int val) {\n \n }\n \n public void addAtTail(int val) {\n \n }\n \n public void addAtIndex(int index, int val) {\n \n }\n \n public void deleteAtIndex(int index) {\n \n }\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * MyLinkedList obj = new MyLinkedList();\n * int param_1 = obj.get(index);\n * obj.addAtHead(val);\n * obj.addAtTail(val);\n * obj.addAtIndex(index,val);\n * obj.deleteAtIndex(index);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class MyLinkedList(object):\n\n def __init__(self):\n \n\n def get(self, index):\n \"\"\"\n :type index: int\n :rtype: int\n \"\"\"\n \n\n def addAtHead(self, val):\n \"\"\"\n :type val: int\n :rtype: None\n \"\"\"\n \n\n def addAtTail(self, val):\n \"\"\"\n :type val: int\n :rtype: None\n \"\"\"\n \n\n def addAtIndex(self, index, val):\n \"\"\"\n :type index: int\n :type val: int\n :rtype: None\n \"\"\"\n \n\n def deleteAtIndex(self, index):\n \"\"\"\n :type index: int\n :rtype: None\n \"\"\"\n \n\n\n# Your MyLinkedList object will be instantiated and called as such:\n# obj = MyLinkedList()\n# param_1 = obj.get(index)\n# obj.addAtHead(val)\n# obj.addAtTail(val)\n# obj.addAtIndex(index,val)\n# obj.deleteAtIndex(index)"}, {"value": "python3", "text": "Python3", "defaultCode": "class MyLinkedList:\n\n def __init__(self):\n \n\n def get(self, index: int) -> int:\n \n\n def addAtHead(self, val: int) -> None:\n \n\n def addAtTail(self, val: int) -> None:\n \n\n def addAtIndex(self, index: int, val: int) -> None:\n \n\n def deleteAtIndex(self, index: int) -> None:\n \n\n\n# Your MyLinkedList object will be instantiated and called as such:\n# obj = MyLinkedList()\n# param_1 = obj.get(index)\n# obj.addAtHead(val)\n# obj.addAtTail(val)\n# obj.addAtIndex(index,val)\n# obj.deleteAtIndex(index)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} MyLinkedList;\n\n\nMyLinkedList* myLinkedListCreate() {\n \n}\n\nint myLinkedListGet(MyLinkedList* obj, int index) {\n \n}\n\nvoid myLinkedListAddAtHead(MyLinkedList* obj, int val) {\n \n}\n\nvoid myLinkedListAddAtTail(MyLinkedList* obj, int val) {\n \n}\n\nvoid myLinkedListAddAtIndex(MyLinkedList* obj, int index, int val) {\n \n}\n\nvoid myLinkedListDeleteAtIndex(MyLinkedList* obj, int index) {\n \n}\n\nvoid myLinkedListFree(MyLinkedList* obj) {\n \n}\n\n/**\n * Your MyLinkedList struct will be instantiated and called as such:\n * MyLinkedList* obj = myLinkedListCreate();\n * int param_1 = myLinkedListGet(obj, index);\n \n * myLinkedListAddAtHead(obj, val);\n \n * myLinkedListAddAtTail(obj, val);\n \n * myLinkedListAddAtIndex(obj, index, val);\n \n * myLinkedListDeleteAtIndex(obj, index);\n \n * myLinkedListFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class MyLinkedList {\n\n public MyLinkedList() {\n \n }\n \n public int Get(int index) {\n \n }\n \n public void AddAtHead(int val) {\n \n }\n \n public void AddAtTail(int val) {\n \n }\n \n public void AddAtIndex(int index, int val) {\n \n }\n \n public void DeleteAtIndex(int index) {\n \n }\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * MyLinkedList obj = new MyLinkedList();\n * int param_1 = obj.Get(index);\n * obj.AddAtHead(val);\n * obj.AddAtTail(val);\n * obj.AddAtIndex(index,val);\n * obj.DeleteAtIndex(index);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "\nvar MyLinkedList = function() {\n \n};\n\n/** \n * @param {number} index\n * @return {number}\n */\nMyLinkedList.prototype.get = function(index) {\n \n};\n\n/** \n * @param {number} val\n * @return {void}\n */\nMyLinkedList.prototype.addAtHead = function(val) {\n \n};\n\n/** \n * @param {number} val\n * @return {void}\n */\nMyLinkedList.prototype.addAtTail = function(val) {\n \n};\n\n/** \n * @param {number} index \n * @param {number} val\n * @return {void}\n */\nMyLinkedList.prototype.addAtIndex = function(index, val) {\n \n};\n\n/** \n * @param {number} index\n * @return {void}\n */\nMyLinkedList.prototype.deleteAtIndex = function(index) {\n \n};\n\n/** \n * Your MyLinkedList object will be instantiated and called as such:\n * var obj = new MyLinkedList()\n * var param_1 = obj.get(index)\n * obj.addAtHead(val)\n * obj.addAtTail(val)\n * obj.addAtIndex(index,val)\n * obj.deleteAtIndex(index)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class MyLinkedList {\n constructor() {\n \n }\n\n get(index: number): number {\n \n }\n\n addAtHead(val: number): void {\n \n }\n\n addAtTail(val: number): void {\n \n }\n\n addAtIndex(index: number, val: number): void {\n \n }\n\n deleteAtIndex(index: number): void {\n \n }\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * var obj = new MyLinkedList()\n * var param_1 = obj.get(index)\n * obj.addAtHead(val)\n * obj.addAtTail(val)\n * obj.addAtIndex(index,val)\n * obj.deleteAtIndex(index)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class MyLinkedList {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param Integer $index\n * @return Integer\n */\n function get($index) {\n \n }\n \n /**\n * @param Integer $val\n * @return NULL\n */\n function addAtHead($val) {\n \n }\n \n /**\n * @param Integer $val\n * @return NULL\n */\n function addAtTail($val) {\n \n }\n \n /**\n * @param Integer $index\n * @param Integer $val\n * @return NULL\n */\n function addAtIndex($index, $val) {\n \n }\n \n /**\n * @param Integer $index\n * @return NULL\n */\n function deleteAtIndex($index) {\n \n }\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * $obj = MyLinkedList();\n * $ret_1 = $obj->get($index);\n * $obj->addAtHead($val);\n * $obj->addAtTail($val);\n * $obj->addAtIndex($index, $val);\n * $obj->deleteAtIndex($index);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass MyLinkedList {\n\n init() {\n \n }\n \n func get(_ index: Int) -> Int {\n \n }\n \n func addAtHead(_ val: Int) {\n \n }\n \n func addAtTail(_ val: Int) {\n \n }\n \n func addAtIndex(_ index: Int, _ val: Int) {\n \n }\n \n func deleteAtIndex(_ index: Int) {\n \n }\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * let obj = MyLinkedList()\n * let ret_1: Int = obj.get(index)\n * obj.addAtHead(val)\n * obj.addAtTail(val)\n * obj.addAtIndex(index, val)\n * obj.deleteAtIndex(index)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class MyLinkedList() {\n\n fun get(index: Int): Int {\n \n }\n\n fun addAtHead(`val`: Int) {\n \n }\n\n fun addAtTail(`val`: Int) {\n \n }\n\n fun addAtIndex(index: Int, `val`: Int) {\n \n }\n\n fun deleteAtIndex(index: Int) {\n \n }\n\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * var obj = MyLinkedList()\n * var param_1 = obj.get(index)\n * obj.addAtHead(`val`)\n * obj.addAtTail(`val`)\n * obj.addAtIndex(index,`val`)\n * obj.deleteAtIndex(index)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class MyLinkedList {\n\n MyLinkedList() {\n \n }\n \n int get(int index) {\n \n }\n \n void addAtHead(int val) {\n \n }\n \n void addAtTail(int val) {\n \n }\n \n void addAtIndex(int index, int val) {\n \n }\n \n void deleteAtIndex(int index) {\n \n }\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * MyLinkedList obj = MyLinkedList();\n * int param1 = obj.get(index);\n * obj.addAtHead(val);\n * obj.addAtTail(val);\n * obj.addAtIndex(index,val);\n * obj.deleteAtIndex(index);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type MyLinkedList struct {\n \n}\n\n\nfunc Constructor() MyLinkedList {\n \n}\n\n\nfunc (this *MyLinkedList) Get(index int) int {\n \n}\n\n\nfunc (this *MyLinkedList) AddAtHead(val int) {\n \n}\n\n\nfunc (this *MyLinkedList) AddAtTail(val int) {\n \n}\n\n\nfunc (this *MyLinkedList) AddAtIndex(index int, val int) {\n \n}\n\n\nfunc (this *MyLinkedList) DeleteAtIndex(index int) {\n \n}\n\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * obj := Constructor();\n * param_1 := obj.Get(index);\n * obj.AddAtHead(val);\n * obj.AddAtTail(val);\n * obj.AddAtIndex(index,val);\n * obj.DeleteAtIndex(index);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class MyLinkedList\n def initialize()\n \n end\n\n\n=begin\n :type index: Integer\n :rtype: Integer\n=end\n def get(index)\n \n end\n\n\n=begin\n :type val: Integer\n :rtype: Void\n=end\n def add_at_head(val)\n \n end\n\n\n=begin\n :type val: Integer\n :rtype: Void\n=end\n def add_at_tail(val)\n \n end\n\n\n=begin\n :type index: Integer\n :type val: Integer\n :rtype: Void\n=end\n def add_at_index(index, val)\n \n end\n\n\n=begin\n :type index: Integer\n :rtype: Void\n=end\n def delete_at_index(index)\n \n end\n\n\nend\n\n# Your MyLinkedList object will be instantiated and called as such:\n# obj = MyLinkedList.new()\n# param_1 = obj.get(index)\n# obj.add_at_head(val)\n# obj.add_at_tail(val)\n# obj.add_at_index(index, val)\n# obj.delete_at_index(index)"}, {"value": "scala", "text": "Scala", "defaultCode": "class MyLinkedList() {\n\n def get(index: Int): Int = {\n \n }\n\n def addAtHead(`val`: Int): Unit = {\n \n }\n\n def addAtTail(`val`: Int): Unit = {\n \n }\n\n def addAtIndex(index: Int, `val`: Int): Unit = {\n \n }\n\n def deleteAtIndex(index: Int): Unit = {\n \n }\n\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * val obj = new MyLinkedList()\n * val param_1 = obj.get(index)\n * obj.addAtHead(`val`)\n * obj.addAtTail(`val`)\n * obj.addAtIndex(index,`val`)\n * obj.deleteAtIndex(index)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct MyLinkedList {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl MyLinkedList {\n\n fn new() -> Self {\n \n }\n \n fn get(&self, index: i32) -> i32 {\n \n }\n \n fn add_at_head(&self, val: i32) {\n \n }\n \n fn add_at_tail(&self, val: i32) {\n \n }\n \n fn add_at_index(&self, index: i32, val: i32) {\n \n }\n \n fn delete_at_index(&self, index: i32) {\n \n }\n}\n\n/**\n * Your MyLinkedList object will be instantiated and called as such:\n * let obj = MyLinkedList::new();\n * let ret_1: i32 = obj.get(index);\n * obj.add_at_head(val);\n * obj.add_at_tail(val);\n * obj.add_at_index(index, val);\n * obj.delete_at_index(index);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define my-linked-list%\n (class object%\n (super-new)\n \n (init-field)\n \n ; get : exact-integer? -> exact-integer?\n (define/public (get index)\n )\n ; add-at-head : exact-integer? -> void?\n (define/public (add-at-head val)\n )\n ; add-at-tail : exact-integer? -> void?\n (define/public (add-at-tail val)\n )\n ; add-at-index : exact-integer? exact-integer? -> void?\n (define/public (add-at-index index val)\n )\n ; delete-at-index : exact-integer? -> void?\n (define/public (delete-at-index index)\n )))\n\n;; Your my-linked-list% object will be instantiated and called as such:\n;; (define obj (new my-linked-list%))\n;; (define param_1 (send obj get index))\n;; (send obj add-at-head val)\n;; (send obj add-at-tail val)\n;; (send obj add-at-index index val)\n;; (send obj delete-at-index index)"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec my_linked_list_init_() -> any().\nmy_linked_list_init_() ->\n .\n\n-spec my_linked_list_get(Index :: integer()) -> integer().\nmy_linked_list_get(Index) ->\n .\n\n-spec my_linked_list_add_at_head(Val :: integer()) -> any().\nmy_linked_list_add_at_head(Val) ->\n .\n\n-spec my_linked_list_add_at_tail(Val :: integer()) -> any().\nmy_linked_list_add_at_tail(Val) ->\n .\n\n-spec my_linked_list_add_at_index(Index :: integer(), Val :: integer()) -> any().\nmy_linked_list_add_at_index(Index, Val) ->\n .\n\n-spec my_linked_list_delete_at_index(Index :: integer()) -> any().\nmy_linked_list_delete_at_index(Index) ->\n .\n\n\n%% Your functions will be called as such:\n%% my_linked_list_init_(),\n%% Param_1 = my_linked_list_get(Index),\n%% my_linked_list_add_at_head(Val),\n%% my_linked_list_add_at_tail(Val),\n%% my_linked_list_add_at_index(Index, Val),\n%% my_linked_list_delete_at_index(Index),\n\n%% my_linked_list_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule MyLinkedList do\n @spec init_() :: any\n def init_() do\n \n end\n\n @spec get(index :: integer) :: integer\n def get(index) do\n \n end\n\n @spec add_at_head(val :: integer) :: any\n def add_at_head(val) do\n \n end\n\n @spec add_at_tail(val :: integer) :: any\n def add_at_tail(val) do\n \n end\n\n @spec add_at_index(index :: integer, val :: integer) :: any\n def add_at_index(index, val) do\n \n end\n\n @spec delete_at_index(index :: integer) :: any\n def delete_at_index(index) do\n \n end\nend\n\n# Your functions will be called as such:\n# MyLinkedList.init_()\n# param_1 = MyLinkedList.get(index)\n# MyLinkedList.add_at_head(val)\n# MyLinkedList.add_at_tail(val)\n# MyLinkedList.add_at_index(index, val)\n# MyLinkedList.delete_at_index(index)\n\n# MyLinkedList.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["MyLinkedList","addAtHead","addAtTail","addAtIndex","get","deleteAtIndex","get"]
[[],[1],[3],[1,2],[1],[1],[1]] | {
"classname": "MyLinkedList",
"constructor": {
"params": []
},
"methods": [
{
"params": [
{
"type": "integer",
"name": "index"
}
],
"return": {
"type": "integer"
},
"name": "get"
},
{
"params": [
{
"type": "integer",
"name": "val"
}
],
"return": {
"type": "void"
},
"name": "addAtHead"
},
{
"params": [
{
"type": "integer",
"name": "val"
}
],
"return": {
"type": "void"
},
"name": "addAtTail"
},
{
"params": [
{
"type": "integer",
"name": "index"
},
{
"type": "integer",
"name": "val"
}
],
"return": {
"type": "void"
},
"name": "addAtIndex"
},
{
"params": [
{
"type": "integer",
"name": "index"
}
],
"return": {
"type": "void"
},
"name": "deleteAtIndex"
}
],
"return": {
"type": "boolean"
},
"systemdesign": true
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Linked List', 'Design'] |
708 | Insert into a Sorted Circular Linked List | insert-into-a-sorted-circular-linked-list | null | Medium | 219.7K | 580.5K | 219,718 | 580,543 | 37.8% | ['insertion-sort-list'] | [] | Algorithms | null | [3,4,1]
2 | {
"name": "insert",
"params": [
{
"name": "head",
"type": "ListNode"
},
{
"name": "insertVal",
"type": "integer"
}
],
"return": {
"type": "ListNode"
},
"languages": [
"cpp",
"java",
"python",
"csharp",
"javascript",
"python3",
"kotlin",
"ruby",
"scala",
"c",
"golang",
"swift",
"php",
"typescript"
],
"manual": true, "typescriptCustomType" : "class _Node {\n val: number\n next: _Node | null\n \n constructor(val?: number, next?: _Node) {\n this.val = (val===undefined ? 0 : val);\n this.next = (next===undefined ? null : next);\n }\n}\n"
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"]} | ['Linked List'] |
709 | To Lower Case | to-lower-case | <p>Given a string <code>s</code>, return <em>the string after replacing every uppercase letter with the same lowercase letter</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = "Hello"
<strong>Output:</strong> "hello"
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = "here"
<strong>Output:</strong> "here"
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> s = "LOVELY"
<strong>Output:</strong> "lovely"
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s.length <= 100</code></li>
<li><code>s</code> consists of printable ASCII characters.</li>
</ul>
| Easy | 607.8K | 723K | 607,781 | 723,027 | 84.1% | ['capitalize-the-title'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n string toLowerCase(string s) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public String toLowerCase(String s) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def toLowerCase(self, s):\n \"\"\"\n :type s: str\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def toLowerCase(self, s: str) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char* toLowerCase(char* s) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public string ToLowerCase(string s) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s\n * @return {string}\n */\nvar toLowerCase = function(s) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function toLowerCase(s: string): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s\n * @return String\n */\n function toLowerCase($s) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func toLowerCase(_ s: String) -> String {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun toLowerCase(s: String): String {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String toLowerCase(String s) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func toLowerCase(s string) string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s\n# @return {String}\ndef to_lower_case(s)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def toLowerCase(s: String): String = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn to_lower_case(s: String) -> String {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (to-lower-case s)\n (-> string? string?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec to_lower_case(S :: unicode:unicode_binary()) -> unicode:unicode_binary().\nto_lower_case(S) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec to_lower_case(s :: String.t) :: String.t\n def to_lower_case(s) do\n \n end\nend"}] | "Hello" | {
"name": "toLowerCase",
"params": [
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "string"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['String'] |
710 | Random Pick with Blacklist | random-pick-with-blacklist | <p>You are given an integer <code>n</code> and an array of <strong>unique</strong> integers <code>blacklist</code>. Design an algorithm to pick a random integer in the range <code>[0, n - 1]</code> that is <strong>not</strong> in <code>blacklist</code>. Any integer that is in the mentioned range and not in <code>blacklist</code> should be <strong>equally likely</strong> to be returned.</p>
<p>Optimize your algorithm such that it minimizes the number of calls to the <strong>built-in</strong> random function of your language.</p>
<p>Implement the <code>Solution</code> class:</p>
<ul>
<li><code>Solution(int n, int[] blacklist)</code> Initializes the object with the integer <code>n</code> and the blacklisted integers <code>blacklist</code>.</li>
<li><code>int pick()</code> Returns a random integer in the range <code>[0, n - 1]</code> and not in <code>blacklist</code>.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["Solution", "pick", "pick", "pick", "pick", "pick", "pick", "pick"]
[[7, [2, 3, 5]], [], [], [], [], [], [], []]
<strong>Output</strong>
[null, 0, 4, 1, 6, 1, 0, 4]
<strong>Explanation</strong>
Solution solution = new Solution(7, [2, 3, 5]);
solution.pick(); // return 0, any integer from [0,1,4,6] should be ok. Note that for every call of pick,
// 0, 1, 4, and 6 must be equally likely to be returned (i.e., with probability 1/4).
solution.pick(); // return 4
solution.pick(); // return 1
solution.pick(); // return 6
solution.pick(); // return 1
solution.pick(); // return 0
solution.pick(); // return 4
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= n <= 10<sup>9</sup></code></li>
<li><code>0 <= blacklist.length <= min(10<sup>5</sup>, n - 1)</code></li>
<li><code>0 <= blacklist[i] < n</code></li>
<li>All the values of <code>blacklist</code> are <strong>unique</strong>.</li>
<li>At most <code>2 * 10<sup>4</sup></code> calls will be made to <code>pick</code>.</li>
</ul>
| Hard | 46.9K | 139.1K | 46,937 | 139,094 | 33.7% | ['random-pick-index', 'random-pick-with-weight', 'find-unique-binary-string'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n Solution(int n, vector<int>& blacklist) {\n \n }\n \n int pick() {\n \n }\n};\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution* obj = new Solution(n, blacklist);\n * int param_1 = obj->pick();\n */"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n\n public Solution(int n, int[] blacklist) {\n \n }\n \n public int pick() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution obj = new Solution(n, blacklist);\n * int param_1 = obj.pick();\n */"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n\n def __init__(self, n, blacklist):\n \"\"\"\n :type n: int\n :type blacklist: List[int]\n \"\"\"\n \n\n def pick(self):\n \"\"\"\n :rtype: int\n \"\"\"\n \n\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution(n, blacklist)\n# param_1 = obj.pick()"}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n\n def __init__(self, n: int, blacklist: List[int]):\n \n\n def pick(self) -> int:\n \n\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution(n, blacklist)\n# param_1 = obj.pick()"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} Solution;\n\n\nSolution* solutionCreate(int n, int* blacklist, int blacklistSize) {\n \n}\n\nint solutionPick(Solution* obj) {\n \n}\n\nvoid solutionFree(Solution* obj) {\n \n}\n\n/**\n * Your Solution struct will be instantiated and called as such:\n * Solution* obj = solutionCreate(n, blacklist, blacklistSize);\n * int param_1 = solutionPick(obj);\n \n * solutionFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n\n public Solution(int n, int[] blacklist) {\n \n }\n \n public int Pick() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution obj = new Solution(n, blacklist);\n * int param_1 = obj.Pick();\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} n\n * @param {number[]} blacklist\n */\nvar Solution = function(n, blacklist) {\n \n};\n\n/**\n * @return {number}\n */\nSolution.prototype.pick = function() {\n \n};\n\n/** \n * Your Solution object will be instantiated and called as such:\n * var obj = new Solution(n, blacklist)\n * var param_1 = obj.pick()\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class Solution {\n constructor(n: number, blacklist: number[]) {\n \n }\n\n pick(): number {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * var obj = new Solution(n, blacklist)\n * var param_1 = obj.pick()\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n /**\n * @param Integer $n\n * @param Integer[] $blacklist\n */\n function __construct($n, $blacklist) {\n \n }\n \n /**\n * @return Integer\n */\n function pick() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * $obj = Solution($n, $blacklist);\n * $ret_1 = $obj->pick();\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass Solution {\n\n init(_ n: Int, _ blacklist: [Int]) {\n \n }\n \n func pick() -> Int {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * let obj = Solution(n, blacklist)\n * let ret_1: Int = obj.pick()\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution(n: Int, blacklist: IntArray) {\n\n fun pick(): Int {\n \n }\n\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * var obj = Solution(n, blacklist)\n * var param_1 = obj.pick()\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n\n Solution(int n, List<int> blacklist) {\n \n }\n \n int pick() {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * Solution obj = Solution(n, blacklist);\n * int param1 = obj.pick();\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type Solution struct {\n \n}\n\n\nfunc Constructor(n int, blacklist []int) Solution {\n \n}\n\n\nfunc (this *Solution) Pick() int {\n \n}\n\n\n/**\n * Your Solution object will be instantiated and called as such:\n * obj := Constructor(n, blacklist);\n * param_1 := obj.Pick();\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class Solution\n\n=begin\n :type n: Integer\n :type blacklist: Integer[]\n=end\n def initialize(n, blacklist)\n \n end\n\n\n=begin\n :rtype: Integer\n=end\n def pick()\n \n end\n\n\nend\n\n# Your Solution object will be instantiated and called as such:\n# obj = Solution.new(n, blacklist)\n# param_1 = obj.pick()"}, {"value": "scala", "text": "Scala", "defaultCode": "class Solution(_n: Int, _blacklist: Array[Int]) {\n\n def pick(): Int = {\n \n }\n\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * val obj = new Solution(n, blacklist)\n * val param_1 = obj.pick()\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct Solution {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl Solution {\n\n fn new(n: i32, blacklist: Vec<i32>) -> Self {\n \n }\n \n fn pick(&self) -> i32 {\n \n }\n}\n\n/**\n * Your Solution object will be instantiated and called as such:\n * let obj = Solution::new(n, blacklist);\n * let ret_1: i32 = obj.pick();\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define solution%\n (class object%\n (super-new)\n \n ; n : exact-integer?\n ; blacklist : (listof exact-integer?)\n (init-field\n n\n blacklist)\n \n ; pick : -> exact-integer?\n (define/public (pick)\n )))\n\n;; Your solution% object will be instantiated and called as such:\n;; (define obj (new solution% [n n] [blacklist blacklist]))\n;; (define param_1 (send obj pick))"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec solution_init_(N :: integer(), Blacklist :: [integer()]) -> any().\nsolution_init_(N, Blacklist) ->\n .\n\n-spec solution_pick() -> integer().\nsolution_pick() ->\n .\n\n\n%% Your functions will be called as such:\n%% solution_init_(N, Blacklist),\n%% Param_1 = solution_pick(),\n\n%% solution_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec init_(n :: integer, blacklist :: [integer]) :: any\n def init_(n, blacklist) do\n \n end\n\n @spec pick() :: integer\n def pick() do\n \n end\nend\n\n# Your functions will be called as such:\n# Solution.init_(n, blacklist)\n# param_1 = Solution.pick()\n\n# Solution.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["Solution","pick","pick","pick","pick","pick","pick","pick"]
[[7,[2,3,5]],[],[],[],[],[],[],[]] | {
"classname": "Solution",
"maxbytesperline": 200000,
"constructor": {
"params": [
{
"name": "n",
"type": "integer"
},
{
"name": "blacklist",
"type": "integer[]"
},
{
"type": "integer",
"name": "blacklistSize",
"lang": "c",
"value": "size_2"
}
]
},
"methods": [
{
"name": "pick",
"params": [],
"return": {
"type": "integer"
}
}
],
"systemdesign": true,
"params": [
{
"name": "inputs",
"type": "integer[]"
},
{
"name": "inputs",
"type": "integer[]"
}
],
"return": {
"type": "list<String>",
"dealloc": true
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'Math', 'Binary Search', 'Sorting', 'Randomized'] |
711 | Number of Distinct Islands II | number-of-distinct-islands-ii | null | Hard | 13K | 23.9K | 13,022 | 23,900 | 54.5% | ['number-of-distinct-islands'] | [] | Algorithms | null | [[1,1,0,0,0],[1,0,0,0,0],[0,0,0,0,1],[0,0,0,1,1]] | {
"name": "numDistinctIslands2",
"params": [
{
"name": "grid",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Hash Table', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Hash Function'] |
712 | Minimum ASCII Delete Sum for Two Strings | minimum-ascii-delete-sum-for-two-strings | <p>Given two strings <code>s1</code> and <code>s2</code>, return <em>the lowest <strong>ASCII</strong> sum of deleted characters to make two strings equal</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s1 = "sea", s2 = "eat"
<strong>Output:</strong> 231
<strong>Explanation:</strong> Deleting "s" from "sea" adds the ASCII value of "s" (115) to the sum.
Deleting "t" from "eat" adds 116 to the sum.
At the end, both strings are equal, and 115 + 116 = 231 is the minimum sum possible to achieve this.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s1 = "delete", s2 = "leet"
<strong>Output:</strong> 403
<strong>Explanation:</strong> Deleting "dee" from "delete" to turn the string into "let",
adds 100[d] + 101[e] + 101[e] to the sum.
Deleting "e" from "leet" adds 101[e] to the sum.
At the end, both strings are equal to "let", and the answer is 100+101+101+101 = 403.
If instead we turned both strings into "lee" or "eet", we would get answers of 433 or 417, which are higher.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s1.length, s2.length <= 1000</code></li>
<li><code>s1</code> and <code>s2</code> consist of lowercase English letters.</li>
</ul>
| Medium | 161K | 245.5K | 161,040 | 245,540 | 65.6% | ['edit-distance', 'longest-increasing-subsequence', 'delete-operation-for-two-strings'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int minimumDeleteSum(string s1, string s2) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int minimumDeleteSum(String s1, String s2) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def minimumDeleteSum(self, s1, s2):\n \"\"\"\n :type s1: str\n :type s2: str\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def minimumDeleteSum(self, s1: str, s2: str) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int minimumDeleteSum(char* s1, char* s2) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int MinimumDeleteSum(string s1, string s2) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s1\n * @param {string} s2\n * @return {number}\n */\nvar minimumDeleteSum = function(s1, s2) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function minimumDeleteSum(s1: string, s2: string): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s1\n * @param String $s2\n * @return Integer\n */\n function minimumDeleteSum($s1, $s2) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func minimumDeleteSum(_ s1: String, _ s2: String) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun minimumDeleteSum(s1: String, s2: String): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int minimumDeleteSum(String s1, String s2) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func minimumDeleteSum(s1 string, s2 string) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s1\n# @param {String} s2\n# @return {Integer}\ndef minimum_delete_sum(s1, s2)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def minimumDeleteSum(s1: String, s2: String): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn minimum_delete_sum(s1: String, s2: String) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (minimum-delete-sum s1 s2)\n (-> string? string? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec minimum_delete_sum(S1 :: unicode:unicode_binary(), S2 :: unicode:unicode_binary()) -> integer().\nminimum_delete_sum(S1, S2) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec minimum_delete_sum(s1 :: String.t, s2 :: String.t) :: integer\n def minimum_delete_sum(s1, s2) do\n \n end\nend"}] | "sea"
"eat" | {
"name": "minimumDeleteSum",
"params": [
{
"name": "s1",
"type": "string"
},
{
"name": "s2",
"type": "string"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['String', 'Dynamic Programming'] |
713 | Subarray Product Less Than K | subarray-product-less-than-k | <p>Given an array of integers <code>nums</code> and an integer <code>k</code>, return <em>the number of contiguous subarrays where the product of all the elements in the subarray is strictly less than </em><code>k</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [10,5,2,6], k = 100
<strong>Output:</strong> 8
<strong>Explanation:</strong> The 8 subarrays that have product less than 100 are:
[10], [5], [2], [6], [10, 5], [5, 2], [2, 6], [5, 2, 6]
Note that [10, 5, 2] is not included as the product of 100 is not strictly less than k.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,2,3], k = 0
<strong>Output:</strong> 0
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= nums.length <= 3 * 10<sup>4</sup></code></li>
<li><code>1 <= nums[i] <= 1000</code></li>
<li><code>0 <= k <= 10<sup>6</sup></code></li>
</ul>
| Medium | 481.8K | 916.8K | 481,819 | 916,753 | 52.6% | ['maximum-product-subarray', 'maximum-size-subarray-sum-equals-k', 'subarray-sum-equals-k', 'two-sum-less-than-k', 'number-of-smooth-descent-periods-of-a-stock', 'count-subarrays-with-score-less-than-k'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int numSubarrayProductLessThanK(vector<int>& nums, int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int numSubarrayProductLessThanK(int[] nums, int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def numSubarrayProductLessThanK(self, nums, k):\n \"\"\"\n :type nums: List[int]\n :type k: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def numSubarrayProductLessThanK(self, nums: List[int], k: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int numSubarrayProductLessThanK(int* nums, int numsSize, int k) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int NumSubarrayProductLessThanK(int[] nums, int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @param {number} k\n * @return {number}\n */\nvar numSubarrayProductLessThanK = function(nums, k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function numSubarrayProductLessThanK(nums: number[], k: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @param Integer $k\n * @return Integer\n */\n function numSubarrayProductLessThanK($nums, $k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func numSubarrayProductLessThanK(_ nums: [Int], _ k: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun numSubarrayProductLessThanK(nums: IntArray, k: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int numSubarrayProductLessThanK(List<int> nums, int k) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func numSubarrayProductLessThanK(nums []int, k int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @param {Integer} k\n# @return {Integer}\ndef num_subarray_product_less_than_k(nums, k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def numSubarrayProductLessThanK(nums: Array[Int], k: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn num_subarray_product_less_than_k(nums: Vec<i32>, k: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (num-subarray-product-less-than-k nums k)\n (-> (listof exact-integer?) exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec num_subarray_product_less_than_k(Nums :: [integer()], K :: integer()) -> integer().\nnum_subarray_product_less_than_k(Nums, K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec num_subarray_product_less_than_k(nums :: [integer], k :: integer) :: integer\n def num_subarray_product_less_than_k(nums, k) do\n \n end\nend"}] | [10,5,2,6]
100 | {
"name": "numSubarrayProductLessThanK",
"params": [
{
"name": "nums",
"type": "integer[]"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Binary Search', 'Sliding Window', 'Prefix Sum'] |
714 | Best Time to Buy and Sell Stock with Transaction Fee | best-time-to-buy-and-sell-stock-with-transaction-fee | <p>You are given an array <code>prices</code> where <code>prices[i]</code> is the price of a given stock on the <code>i<sup>th</sup></code> day, and an integer <code>fee</code> representing a transaction fee.</p>
<p>Find the maximum profit you can achieve. You may complete as many transactions as you like, but you need to pay the transaction fee for each transaction.</p>
<p><strong>Note:</strong></p>
<ul>
<li>You may not engage in multiple transactions simultaneously (i.e., you must sell the stock before you buy again).</li>
<li>The transaction fee is only charged once for each stock purchase and sale.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> prices = [1,3,2,8,4,9], fee = 2
<strong>Output:</strong> 8
<strong>Explanation:</strong> The maximum profit can be achieved by:
- Buying at prices[0] = 1
- Selling at prices[3] = 8
- Buying at prices[4] = 4
- Selling at prices[5] = 9
The total profit is ((8 - 1) - 2) + ((9 - 4) - 2) = 8.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> prices = [1,3,7,5,10,3], fee = 3
<strong>Output:</strong> 6
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= prices.length <= 5 * 10<sup>4</sup></code></li>
<li><code>1 <= prices[i] < 5 * 10<sup>4</sup></code></li>
<li><code>0 <= fee < 5 * 10<sup>4</sup></code></li>
</ul>
| Medium | 461.5K | 658.5K | 461,549 | 658,495 | 70.1% | ['best-time-to-buy-and-sell-stock-ii'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int maxProfit(vector<int>& prices, int fee) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int maxProfit(int[] prices, int fee) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def maxProfit(self, prices, fee):\n \"\"\"\n :type prices: List[int]\n :type fee: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def maxProfit(self, prices: List[int], fee: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int maxProfit(int* prices, int pricesSize, int fee) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int MaxProfit(int[] prices, int fee) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} prices\n * @param {number} fee\n * @return {number}\n */\nvar maxProfit = function(prices, fee) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function maxProfit(prices: number[], fee: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $prices\n * @param Integer $fee\n * @return Integer\n */\n function maxProfit($prices, $fee) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func maxProfit(_ prices: [Int], _ fee: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun maxProfit(prices: IntArray, fee: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int maxProfit(List<int> prices, int fee) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func maxProfit(prices []int, fee int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} prices\n# @param {Integer} fee\n# @return {Integer}\ndef max_profit(prices, fee)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def maxProfit(prices: Array[Int], fee: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn max_profit(prices: Vec<i32>, fee: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (max-profit prices fee)\n (-> (listof exact-integer?) exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec max_profit(Prices :: [integer()], Fee :: integer()) -> integer().\nmax_profit(Prices, Fee) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec max_profit(prices :: [integer], fee :: integer) :: integer\n def max_profit(prices, fee) do\n \n end\nend"}] | [1,3,2,8,4,9]
2 | {
"name": "maxProfit",
"params": [
{
"name": "prices",
"type": "integer[]"
},
{
"name": "fee",
"type": "integer"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Dynamic Programming', 'Greedy'] |
715 | Range Module | range-module | <p>A Range Module is a module that tracks ranges of numbers. Design a data structure to track the ranges represented as <strong>half-open intervals</strong> and query about them.</p>
<p>A <strong>half-open interval</strong> <code>[left, right)</code> denotes all the real numbers <code>x</code> where <code>left <= x < right</code>.</p>
<p>Implement the <code>RangeModule</code> class:</p>
<ul>
<li><code>RangeModule()</code> Initializes the object of the data structure.</li>
<li><code>void addRange(int left, int right)</code> Adds the <strong>half-open interval</strong> <code>[left, right)</code>, tracking every real number in that interval. Adding an interval that partially overlaps with currently tracked numbers should add any numbers in the interval <code>[left, right)</code> that are not already tracked.</li>
<li><code>boolean queryRange(int left, int right)</code> Returns <code>true</code> if every real number in the interval <code>[left, right)</code> is currently being tracked, and <code>false</code> otherwise.</li>
<li><code>void removeRange(int left, int right)</code> Stops tracking every real number currently being tracked in the <strong>half-open interval</strong> <code>[left, right)</code>.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["RangeModule", "addRange", "removeRange", "queryRange", "queryRange", "queryRange"]
[[], [10, 20], [14, 16], [10, 14], [13, 15], [16, 17]]
<strong>Output</strong>
[null, null, null, true, false, true]
<strong>Explanation</strong>
RangeModule rangeModule = new RangeModule();
rangeModule.addRange(10, 20);
rangeModule.removeRange(14, 16);
rangeModule.queryRange(10, 14); // return True,(Every number in [10, 14) is being tracked)
rangeModule.queryRange(13, 15); // return False,(Numbers like 14, 14.03, 14.17 in [13, 15) are not being tracked)
rangeModule.queryRange(16, 17); // return True, (The number 16 in [16, 17) is still being tracked, despite the remove operation)
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= left < right <= 10<sup>9</sup></code></li>
<li>At most <code>10<sup>4</sup></code> calls will be made to <code>addRange</code>, <code>queryRange</code>, and <code>removeRange</code>.</li>
</ul>
| Hard | 82.6K | 187.2K | 82,616 | 187,221 | 44.1% | ['merge-intervals', 'insert-interval', 'data-stream-as-disjoint-intervals'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class RangeModule {\npublic:\n RangeModule() {\n \n }\n \n void addRange(int left, int right) {\n \n }\n \n bool queryRange(int left, int right) {\n \n }\n \n void removeRange(int left, int right) {\n \n }\n};\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * RangeModule* obj = new RangeModule();\n * obj->addRange(left,right);\n * bool param_2 = obj->queryRange(left,right);\n * obj->removeRange(left,right);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class RangeModule {\n\n public RangeModule() {\n \n }\n \n public void addRange(int left, int right) {\n \n }\n \n public boolean queryRange(int left, int right) {\n \n }\n \n public void removeRange(int left, int right) {\n \n }\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * RangeModule obj = new RangeModule();\n * obj.addRange(left,right);\n * boolean param_2 = obj.queryRange(left,right);\n * obj.removeRange(left,right);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class RangeModule(object):\n\n def __init__(self):\n \n\n def addRange(self, left, right):\n \"\"\"\n :type left: int\n :type right: int\n :rtype: None\n \"\"\"\n \n\n def queryRange(self, left, right):\n \"\"\"\n :type left: int\n :type right: int\n :rtype: bool\n \"\"\"\n \n\n def removeRange(self, left, right):\n \"\"\"\n :type left: int\n :type right: int\n :rtype: None\n \"\"\"\n \n\n\n# Your RangeModule object will be instantiated and called as such:\n# obj = RangeModule()\n# obj.addRange(left,right)\n# param_2 = obj.queryRange(left,right)\n# obj.removeRange(left,right)"}, {"value": "python3", "text": "Python3", "defaultCode": "class RangeModule:\n\n def __init__(self):\n \n\n def addRange(self, left: int, right: int) -> None:\n \n\n def queryRange(self, left: int, right: int) -> bool:\n \n\n def removeRange(self, left: int, right: int) -> None:\n \n\n\n# Your RangeModule object will be instantiated and called as such:\n# obj = RangeModule()\n# obj.addRange(left,right)\n# param_2 = obj.queryRange(left,right)\n# obj.removeRange(left,right)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} RangeModule;\n\n\nRangeModule* rangeModuleCreate() {\n \n}\n\nvoid rangeModuleAddRange(RangeModule* obj, int left, int right) {\n \n}\n\nbool rangeModuleQueryRange(RangeModule* obj, int left, int right) {\n \n}\n\nvoid rangeModuleRemoveRange(RangeModule* obj, int left, int right) {\n \n}\n\nvoid rangeModuleFree(RangeModule* obj) {\n \n}\n\n/**\n * Your RangeModule struct will be instantiated and called as such:\n * RangeModule* obj = rangeModuleCreate();\n * rangeModuleAddRange(obj, left, right);\n \n * bool param_2 = rangeModuleQueryRange(obj, left, right);\n \n * rangeModuleRemoveRange(obj, left, right);\n \n * rangeModuleFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class RangeModule {\n\n public RangeModule() {\n \n }\n \n public void AddRange(int left, int right) {\n \n }\n \n public bool QueryRange(int left, int right) {\n \n }\n \n public void RemoveRange(int left, int right) {\n \n }\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * RangeModule obj = new RangeModule();\n * obj.AddRange(left,right);\n * bool param_2 = obj.QueryRange(left,right);\n * obj.RemoveRange(left,right);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "\nvar RangeModule = function() {\n \n};\n\n/** \n * @param {number} left \n * @param {number} right\n * @return {void}\n */\nRangeModule.prototype.addRange = function(left, right) {\n \n};\n\n/** \n * @param {number} left \n * @param {number} right\n * @return {boolean}\n */\nRangeModule.prototype.queryRange = function(left, right) {\n \n};\n\n/** \n * @param {number} left \n * @param {number} right\n * @return {void}\n */\nRangeModule.prototype.removeRange = function(left, right) {\n \n};\n\n/** \n * Your RangeModule object will be instantiated and called as such:\n * var obj = new RangeModule()\n * obj.addRange(left,right)\n * var param_2 = obj.queryRange(left,right)\n * obj.removeRange(left,right)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class RangeModule {\n constructor() {\n \n }\n\n addRange(left: number, right: number): void {\n \n }\n\n queryRange(left: number, right: number): boolean {\n \n }\n\n removeRange(left: number, right: number): void {\n \n }\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * var obj = new RangeModule()\n * obj.addRange(left,right)\n * var param_2 = obj.queryRange(left,right)\n * obj.removeRange(left,right)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class RangeModule {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param Integer $left\n * @param Integer $right\n * @return NULL\n */\n function addRange($left, $right) {\n \n }\n \n /**\n * @param Integer $left\n * @param Integer $right\n * @return Boolean\n */\n function queryRange($left, $right) {\n \n }\n \n /**\n * @param Integer $left\n * @param Integer $right\n * @return NULL\n */\n function removeRange($left, $right) {\n \n }\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * $obj = RangeModule();\n * $obj->addRange($left, $right);\n * $ret_2 = $obj->queryRange($left, $right);\n * $obj->removeRange($left, $right);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass RangeModule {\n\n init() {\n \n }\n \n func addRange(_ left: Int, _ right: Int) {\n \n }\n \n func queryRange(_ left: Int, _ right: Int) -> Bool {\n \n }\n \n func removeRange(_ left: Int, _ right: Int) {\n \n }\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * let obj = RangeModule()\n * obj.addRange(left, right)\n * let ret_2: Bool = obj.queryRange(left, right)\n * obj.removeRange(left, right)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class RangeModule() {\n\n fun addRange(left: Int, right: Int) {\n \n }\n\n fun queryRange(left: Int, right: Int): Boolean {\n \n }\n\n fun removeRange(left: Int, right: Int) {\n \n }\n\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * var obj = RangeModule()\n * obj.addRange(left,right)\n * var param_2 = obj.queryRange(left,right)\n * obj.removeRange(left,right)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class RangeModule {\n\n RangeModule() {\n \n }\n \n void addRange(int left, int right) {\n \n }\n \n bool queryRange(int left, int right) {\n \n }\n \n void removeRange(int left, int right) {\n \n }\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * RangeModule obj = RangeModule();\n * obj.addRange(left,right);\n * bool param2 = obj.queryRange(left,right);\n * obj.removeRange(left,right);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type RangeModule struct {\n \n}\n\n\nfunc Constructor() RangeModule {\n \n}\n\n\nfunc (this *RangeModule) AddRange(left int, right int) {\n \n}\n\n\nfunc (this *RangeModule) QueryRange(left int, right int) bool {\n \n}\n\n\nfunc (this *RangeModule) RemoveRange(left int, right int) {\n \n}\n\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * obj := Constructor();\n * obj.AddRange(left,right);\n * param_2 := obj.QueryRange(left,right);\n * obj.RemoveRange(left,right);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class RangeModule\n def initialize()\n \n end\n\n\n=begin\n :type left: Integer\n :type right: Integer\n :rtype: Void\n=end\n def add_range(left, right)\n \n end\n\n\n=begin\n :type left: Integer\n :type right: Integer\n :rtype: Boolean\n=end\n def query_range(left, right)\n \n end\n\n\n=begin\n :type left: Integer\n :type right: Integer\n :rtype: Void\n=end\n def remove_range(left, right)\n \n end\n\n\nend\n\n# Your RangeModule object will be instantiated and called as such:\n# obj = RangeModule.new()\n# obj.add_range(left, right)\n# param_2 = obj.query_range(left, right)\n# obj.remove_range(left, right)"}, {"value": "scala", "text": "Scala", "defaultCode": "class RangeModule() {\n\n def addRange(left: Int, right: Int): Unit = {\n \n }\n\n def queryRange(left: Int, right: Int): Boolean = {\n \n }\n\n def removeRange(left: Int, right: Int): Unit = {\n \n }\n\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * val obj = new RangeModule()\n * obj.addRange(left,right)\n * val param_2 = obj.queryRange(left,right)\n * obj.removeRange(left,right)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct RangeModule {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl RangeModule {\n\n fn new() -> Self {\n \n }\n \n fn add_range(&self, left: i32, right: i32) {\n \n }\n \n fn query_range(&self, left: i32, right: i32) -> bool {\n \n }\n \n fn remove_range(&self, left: i32, right: i32) {\n \n }\n}\n\n/**\n * Your RangeModule object will be instantiated and called as such:\n * let obj = RangeModule::new();\n * obj.add_range(left, right);\n * let ret_2: bool = obj.query_range(left, right);\n * obj.remove_range(left, right);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define range-module%\n (class object%\n (super-new)\n \n (init-field)\n \n ; add-range : exact-integer? exact-integer? -> void?\n (define/public (add-range left right)\n )\n ; query-range : exact-integer? exact-integer? -> boolean?\n (define/public (query-range left right)\n )\n ; remove-range : exact-integer? exact-integer? -> void?\n (define/public (remove-range left right)\n )))\n\n;; Your range-module% object will be instantiated and called as such:\n;; (define obj (new range-module%))\n;; (send obj add-range left right)\n;; (define param_2 (send obj query-range left right))\n;; (send obj remove-range left right)"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec range_module_init_() -> any().\nrange_module_init_() ->\n .\n\n-spec range_module_add_range(Left :: integer(), Right :: integer()) -> any().\nrange_module_add_range(Left, Right) ->\n .\n\n-spec range_module_query_range(Left :: integer(), Right :: integer()) -> boolean().\nrange_module_query_range(Left, Right) ->\n .\n\n-spec range_module_remove_range(Left :: integer(), Right :: integer()) -> any().\nrange_module_remove_range(Left, Right) ->\n .\n\n\n%% Your functions will be called as such:\n%% range_module_init_(),\n%% range_module_add_range(Left, Right),\n%% Param_2 = range_module_query_range(Left, Right),\n%% range_module_remove_range(Left, Right),\n\n%% range_module_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule RangeModule do\n @spec init_() :: any\n def init_() do\n \n end\n\n @spec add_range(left :: integer, right :: integer) :: any\n def add_range(left, right) do\n \n end\n\n @spec query_range(left :: integer, right :: integer) :: boolean\n def query_range(left, right) do\n \n end\n\n @spec remove_range(left :: integer, right :: integer) :: any\n def remove_range(left, right) do\n \n end\nend\n\n# Your functions will be called as such:\n# RangeModule.init_()\n# RangeModule.add_range(left, right)\n# param_2 = RangeModule.query_range(left, right)\n# RangeModule.remove_range(left, right)\n\n# RangeModule.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["RangeModule","addRange","removeRange","queryRange","queryRange","queryRange"]
[[],[10,20],[14,16],[10,14],[13,15],[16,17]] | {
"classname": "RangeModule",
"constructor": {
"params": []
},
"methods": [
{
"name" : "addRange",
"params": [
{
"type": "integer",
"name": "left"
},
{
"type": "integer",
"name": "right"
}
],
"return": {
"type": "void"
}
},
{
"name" : "queryRange",
"params": [
{
"type": "integer",
"name": "left"
},
{
"type": "integer",
"name": "right"
}
],
"return": {
"type": "boolean"
}
},
{
"name" : "removeRange",
"params": [
{
"type": "integer",
"name": "left"
},
{
"type": "integer",
"name": "right"
}
],
"return": {
"type": "void"
}
}
],
"systemdesign": true,
"params": [
{
"name": "lefts",
"type": "integer[]"
},
{
"name": "rights",
"type": "integer[]"
}
],
"return": {
"type": "list<String>",
"dealloc": true
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Design', 'Segment Tree', 'Ordered Set'] |
716 | Max Stack | max-stack | null | Hard | 167.9K | 369.8K | 167,871 | 369,808 | 45.4% | ['min-stack'] | [] | Algorithms | null | ["MaxStack","push","push","push","top","popMax","top","peekMax","pop","top"]
[[],[5],[1],[5],[],[],[],[],[],[]] | {
"classname": "MaxStack",
"constructor": {
"params": []
},
"methods": [
{
"params": [
{
"type": "integer",
"name": "x"
}
],
"return": {
"type": "void"
},
"name": "push"
},
{
"params": [],
"return": {
"type": "integer"
},
"name": "pop"
},
{
"params": [],
"return": {
"type": "integer"
},
"name": "top"
},
{
"params": [],
"return": {
"type": "integer"
},
"name": "peekMax"
},
{
"params": [],
"return": {
"type": "integer"
},
"name": "popMax"
}
],
"return": {
"type": "boolean"
},
"systemdesign": true
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Linked List', 'Stack', 'Design', 'Doubly-Linked List', 'Ordered Set'] |
717 | 1-bit and 2-bit Characters | 1-bit-and-2-bit-characters | <p>We have two special characters:</p>
<ul>
<li>The first character can be represented by one bit <code>0</code>.</li>
<li>The second character can be represented by two bits (<code>10</code> or <code>11</code>).</li>
</ul>
<p>Given a binary array <code>bits</code> that ends with <code>0</code>, return <code>true</code> if the last character must be a one-bit character.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> bits = [1,0,0]
<strong>Output:</strong> true
<strong>Explanation:</strong> The only way to decode it is two-bit character and one-bit character.
So the last character is one-bit character.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> bits = [1,1,1,0]
<strong>Output:</strong> false
<strong>Explanation:</strong> The only way to decode it is two-bit character and two-bit character.
So the last character is not one-bit character.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= bits.length <= 1000</code></li>
<li><code>bits[i]</code> is either <code>0</code> or <code>1</code>.</li>
</ul>
| Easy | 149.6K | 331.7K | 149,608 | 331,670 | 45.1% | ['gray-code'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool isOneBitCharacter(vector<int>& bits) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean isOneBitCharacter(int[] bits) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def isOneBitCharacter(self, bits):\n \"\"\"\n :type bits: List[int]\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def isOneBitCharacter(self, bits: List[int]) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool isOneBitCharacter(int* bits, int bitsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool IsOneBitCharacter(int[] bits) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} bits\n * @return {boolean}\n */\nvar isOneBitCharacter = function(bits) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function isOneBitCharacter(bits: number[]): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $bits\n * @return Boolean\n */\n function isOneBitCharacter($bits) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func isOneBitCharacter(_ bits: [Int]) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun isOneBitCharacter(bits: IntArray): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool isOneBitCharacter(List<int> bits) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func isOneBitCharacter(bits []int) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} bits\n# @return {Boolean}\ndef is_one_bit_character(bits)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def isOneBitCharacter(bits: Array[Int]): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn is_one_bit_character(bits: Vec<i32>) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (is-one-bit-character bits)\n (-> (listof exact-integer?) boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec is_one_bit_character(Bits :: [integer()]) -> boolean().\nis_one_bit_character(Bits) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec is_one_bit_character(bits :: [integer]) :: boolean\n def is_one_bit_character(bits) do\n \n end\nend"}] | [1,0,0] | {
"name": "isOneBitCharacter",
"params": [
{
"name": "bits",
"type": "integer[]"
}
],
"return": {
"type": "boolean"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array'] |
718 | Maximum Length of Repeated Subarray | maximum-length-of-repeated-subarray | <p>Given two integer arrays <code>nums1</code> and <code>nums2</code>, return <em>the maximum length of a subarray that appears in <strong>both</strong> arrays</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums1 = [1,2,3,2,1], nums2 = [3,2,1,4,7]
<strong>Output:</strong> 3
<strong>Explanation:</strong> The repeated subarray with maximum length is [3,2,1].
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums1 = [0,0,0,0,0], nums2 = [0,0,0,0,0]
<strong>Output:</strong> 5
<strong>Explanation:</strong> The repeated subarray with maximum length is [0,0,0,0,0].
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= nums1.length, nums2.length <= 1000</code></li>
<li><code>0 <= nums1[i], nums2[i] <= 100</code></li>
</ul>
| Medium | 331.4K | 649.9K | 331,352 | 649,908 | 51.0% | ['minimum-size-subarray-sum', 'longest-common-subpath', 'find-the-maximum-length-of-a-good-subsequence-ii', 'find-the-maximum-length-of-a-good-subsequence-i'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int findLength(vector<int>& nums1, vector<int>& nums2) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int findLength(int[] nums1, int[] nums2) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def findLength(self, nums1, nums2):\n \"\"\"\n :type nums1: List[int]\n :type nums2: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def findLength(self, nums1: List[int], nums2: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int findLength(int* nums1, int nums1Size, int* nums2, int nums2Size) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int FindLength(int[] nums1, int[] nums2) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums1\n * @param {number[]} nums2\n * @return {number}\n */\nvar findLength = function(nums1, nums2) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function findLength(nums1: number[], nums2: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums1\n * @param Integer[] $nums2\n * @return Integer\n */\n function findLength($nums1, $nums2) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func findLength(_ nums1: [Int], _ nums2: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun findLength(nums1: IntArray, nums2: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int findLength(List<int> nums1, List<int> nums2) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func findLength(nums1 []int, nums2 []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums1\n# @param {Integer[]} nums2\n# @return {Integer}\ndef find_length(nums1, nums2)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def findLength(nums1: Array[Int], nums2: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn find_length(nums1: Vec<i32>, nums2: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (find-length nums1 nums2)\n (-> (listof exact-integer?) (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec find_length(Nums1 :: [integer()], Nums2 :: [integer()]) -> integer().\nfind_length(Nums1, Nums2) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec find_length(nums1 :: [integer], nums2 :: [integer]) :: integer\n def find_length(nums1, nums2) do\n \n end\nend"}] | [1,2,3,2,1]
[3,2,1,4,7] | {
"name": "findLength",
"params": [
{
"name": "nums1",
"type": "integer[]"
},
{
"name": "nums2",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Binary Search', 'Dynamic Programming', 'Sliding Window', 'Rolling Hash', 'Hash Function'] |
719 | Find K-th Smallest Pair Distance | find-k-th-smallest-pair-distance | <p>The <strong>distance of a pair</strong> of integers <code>a</code> and <code>b</code> is defined as the absolute difference between <code>a</code> and <code>b</code>.</p>
<p>Given an integer array <code>nums</code> and an integer <code>k</code>, return <em>the</em> <code>k<sup>th</sup></code> <em>smallest <strong>distance among all the pairs</strong></em> <code>nums[i]</code> <em>and</em> <code>nums[j]</code> <em>where</em> <code>0 <= i < j < nums.length</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,3,1], k = 1
<strong>Output:</strong> 0
<strong>Explanation:</strong> Here are all the pairs:
(1,3) -> 2
(1,1) -> 0
(3,1) -> 2
Then the 1<sup>st</sup> smallest distance pair is (1,1), and its distance is 0.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,1,1], k = 2
<strong>Output:</strong> 0
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,6,1], k = 3
<strong>Output:</strong> 5
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>n == nums.length</code></li>
<li><code>2 <= n <= 10<sup>4</sup></code></li>
<li><code>0 <= nums[i] <= 10<sup>6</sup></code></li>
<li><code>1 <= k <= n * (n - 1) / 2</code></li>
</ul>
| Hard | 194.7K | 426.4K | 194,681 | 426,434 | 45.7% | ['find-k-pairs-with-smallest-sums', 'kth-smallest-element-in-a-sorted-matrix', 'find-k-closest-elements', 'kth-smallest-number-in-multiplication-table', 'k-th-smallest-prime-fraction', 'find-the-median-of-the-uniqueness-array', 'maximize-score-of-numbers-in-ranges'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int smallestDistancePair(vector<int>& nums, int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int smallestDistancePair(int[] nums, int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def smallestDistancePair(self, nums, k):\n \"\"\"\n :type nums: List[int]\n :type k: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def smallestDistancePair(self, nums: List[int], k: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int smallestDistancePair(int* nums, int numsSize, int k) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int SmallestDistancePair(int[] nums, int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @param {number} k\n * @return {number}\n */\nvar smallestDistancePair = function(nums, k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function smallestDistancePair(nums: number[], k: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @param Integer $k\n * @return Integer\n */\n function smallestDistancePair($nums, $k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func smallestDistancePair(_ nums: [Int], _ k: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun smallestDistancePair(nums: IntArray, k: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int smallestDistancePair(List<int> nums, int k) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func smallestDistancePair(nums []int, k int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @param {Integer} k\n# @return {Integer}\ndef smallest_distance_pair(nums, k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def smallestDistancePair(nums: Array[Int], k: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn smallest_distance_pair(nums: Vec<i32>, k: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (smallest-distance-pair nums k)\n (-> (listof exact-integer?) exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec smallest_distance_pair(Nums :: [integer()], K :: integer()) -> integer().\nsmallest_distance_pair(Nums, K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec smallest_distance_pair(nums :: [integer], k :: integer) :: integer\n def smallest_distance_pair(nums, k) do\n \n end\nend"}] | [1,3,1]
1 | {
"name": "smallestDistancePair",
"params": [
{
"name": "nums",
"type": "integer[]"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Two Pointers', 'Binary Search', 'Sorting'] |
720 | Longest Word in Dictionary | longest-word-in-dictionary | <p>Given an array of strings <code>words</code> representing an English Dictionary, return <em>the longest word in</em> <code>words</code> <em>that can be built one character at a time by other words in</em> <code>words</code>.</p>
<p>If there is more than one possible answer, return the longest word with the smallest lexicographical order. If there is no answer, return the empty string.</p>
<p>Note that the word should be built from left to right with each additional character being added to the end of a previous word. </p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> words = ["w","wo","wor","worl","world"]
<strong>Output:</strong> "world"
<strong>Explanation:</strong> The word "world" can be built one character at a time by "w", "wo", "wor", and "worl".
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> words = ["a","banana","app","appl","ap","apply","apple"]
<strong>Output:</strong> "apple"
<strong>Explanation:</strong> Both "apply" and "apple" can be built from other words in the dictionary. However, "apple" is lexicographically smaller than "apply".
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= words.length <= 1000</code></li>
<li><code>1 <= words[i].length <= 30</code></li>
<li><code>words[i]</code> consists of lowercase English letters.</li>
</ul>
| Medium | 169.3K | 317.9K | 169,292 | 317,881 | 53.3% | ['longest-word-in-dictionary-through-deleting', 'implement-magic-dictionary', 'longest-word-with-all-prefixes'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n string longestWord(vector<string>& words) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public String longestWord(String[] words) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def longestWord(self, words):\n \"\"\"\n :type words: List[str]\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def longestWord(self, words: List[str]) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char* longestWord(char** words, int wordsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public string LongestWord(string[] words) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string[]} words\n * @return {string}\n */\nvar longestWord = function(words) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function longestWord(words: string[]): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String[] $words\n * @return String\n */\n function longestWord($words) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func longestWord(_ words: [String]) -> String {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun longestWord(words: Array<String>): String {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String longestWord(List<String> words) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func longestWord(words []string) string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String[]} words\n# @return {String}\ndef longest_word(words)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def longestWord(words: Array[String]): String = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn longest_word(words: Vec<String>) -> String {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (longest-word words)\n (-> (listof string?) string?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec longest_word(Words :: [unicode:unicode_binary()]) -> unicode:unicode_binary().\nlongest_word(Words) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec longest_word(words :: [String.t]) :: String.t\n def longest_word(words) do\n \n end\nend"}] | ["w","wo","wor","worl","world"] | {
"name": "longestWord",
"params": [
{
"name": "words",
"type": "string[]"
}
],
"return": {
"type": "string"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String', 'Trie', 'Sorting'] |
721 | Accounts Merge | accounts-merge | <p>Given a list of <code>accounts</code> where each element <code>accounts[i]</code> is a list of strings, where the first element <code>accounts[i][0]</code> is a name, and the rest of the elements are <strong>emails</strong> representing emails of the account.</p>
<p>Now, we would like to merge these accounts. Two accounts definitely belong to the same person if there is some common email to both accounts. Note that even if two accounts have the same name, they may belong to different people as people could have the same name. A person can have any number of accounts initially, but all of their accounts definitely have the same name.</p>
<p>After merging the accounts, return the accounts in the following format: the first element of each account is the name, and the rest of the elements are emails <strong>in sorted order</strong>. The accounts themselves can be returned in <strong>any order</strong>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> accounts = [["John","johnsmith@mail.com","john_newyork@mail.com"],["John","johnsmith@mail.com","john00@mail.com"],["Mary","mary@mail.com"],["John","johnnybravo@mail.com"]]
<strong>Output:</strong> [["John","john00@mail.com","john_newyork@mail.com","johnsmith@mail.com"],["Mary","mary@mail.com"],["John","johnnybravo@mail.com"]]
<strong>Explanation:</strong>
The first and second John's are the same person as they have the common email "johnsmith@mail.com".
The third John and Mary are different people as none of their email addresses are used by other accounts.
We could return these lists in any order, for example the answer [['Mary', 'mary@mail.com'], ['John', 'johnnybravo@mail.com'],
['John', 'john00@mail.com', 'john_newyork@mail.com', 'johnsmith@mail.com']] would still be accepted.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> accounts = [["Gabe","Gabe0@m.co","Gabe3@m.co","Gabe1@m.co"],["Kevin","Kevin3@m.co","Kevin5@m.co","Kevin0@m.co"],["Ethan","Ethan5@m.co","Ethan4@m.co","Ethan0@m.co"],["Hanzo","Hanzo3@m.co","Hanzo1@m.co","Hanzo0@m.co"],["Fern","Fern5@m.co","Fern1@m.co","Fern0@m.co"]]
<strong>Output:</strong> [["Ethan","Ethan0@m.co","Ethan4@m.co","Ethan5@m.co"],["Gabe","Gabe0@m.co","Gabe1@m.co","Gabe3@m.co"],["Hanzo","Hanzo0@m.co","Hanzo1@m.co","Hanzo3@m.co"],["Kevin","Kevin0@m.co","Kevin3@m.co","Kevin5@m.co"],["Fern","Fern0@m.co","Fern1@m.co","Fern5@m.co"]]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= accounts.length <= 1000</code></li>
<li><code>2 <= accounts[i].length <= 10</code></li>
<li><code>1 <= accounts[i][j].length <= 30</code></li>
<li><code>accounts[i][0]</code> consists of English letters.</li>
<li><code>accounts[i][j] (for j > 0)</code> is a valid email.</li>
</ul>
| Medium | 499.6K | 845.4K | 499,566 | 845,405 | 59.1% | ['redundant-connection', 'sentence-similarity', 'sentence-similarity-ii'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<vector<string>> accountsMerge(vector<vector<string>>& accounts) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public List<List<String>> accountsMerge(List<List<String>> accounts) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def accountsMerge(self, accounts):\n \"\"\"\n :type accounts: List[List[str]]\n :rtype: List[List[str]]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def accountsMerge(self, accounts: List[List[str]]) -> List[List[str]]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Return an array of arrays of size *returnSize.\n * The sizes of the arrays are returned as *returnColumnSizes array.\n * Note: Both returned array and *columnSizes array must be malloced, assume caller calls free().\n */\nchar*** accountsMerge(char*** accounts, int accountsSize, int* accountsColSize, int* returnSize, int** returnColumnSizes) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public IList<IList<string>> AccountsMerge(IList<IList<string>> accounts) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string[][]} accounts\n * @return {string[][]}\n */\nvar accountsMerge = function(accounts) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function accountsMerge(accounts: string[][]): string[][] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String[][] $accounts\n * @return String[][]\n */\n function accountsMerge($accounts) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func accountsMerge(_ accounts: [[String]]) -> [[String]] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun accountsMerge(accounts: List<List<String>>): List<List<String>> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<List<String>> accountsMerge(List<List<String>> accounts) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func accountsMerge(accounts [][]string) [][]string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String[][]} accounts\n# @return {String[][]}\ndef accounts_merge(accounts)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def accountsMerge(accounts: List[List[String]]): List[List[String]] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn accounts_merge(accounts: Vec<Vec<String>>) -> Vec<Vec<String>> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (accounts-merge accounts)\n (-> (listof (listof string?)) (listof (listof string?)))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec accounts_merge(Accounts :: [[unicode:unicode_binary()]]) -> [[unicode:unicode_binary()]].\naccounts_merge(Accounts) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec accounts_merge(accounts :: [[String.t]]) :: [[String.t]]\n def accounts_merge(accounts) do\n \n end\nend"}] | [["John","johnsmith@mail.com","john_newyork@mail.com"],["John","johnsmith@mail.com","john00@mail.com"],["Mary","mary@mail.com"],["John","johnnybravo@mail.com"]] | {
"name": "accountsMerge",
"params": [
{
"name": "accounts",
"type": "list<list<string>>"
}
],
"return": {
"type": "list<list<string>>"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Sorting'] |
722 | Remove Comments | remove-comments | <p>Given a C++ program, remove comments from it. The program source is an array of strings <code>source</code> where <code>source[i]</code> is the <code>i<sup>th</sup></code> line of the source code. This represents the result of splitting the original source code string by the newline character <code>'\n'</code>.</p>
<p>In C++, there are two types of comments, line comments, and block comments.</p>
<ul>
<li>The string <code>"//"</code> denotes a line comment, which represents that it and the rest of the characters to the right of it in the same line should be ignored.</li>
<li>The string <code>"/*"</code> denotes a block comment, which represents that all characters until the next (non-overlapping) occurrence of <code>"*/"</code> should be ignored. (Here, occurrences happen in reading order: line by line from left to right.) To be clear, the string <code>"/*/"</code> does not yet end the block comment, as the ending would be overlapping the beginning.</li>
</ul>
<p>The first effective comment takes precedence over others.</p>
<ul>
<li>For example, if the string <code>"//"</code> occurs in a block comment, it is ignored.</li>
<li>Similarly, if the string <code>"/*"</code> occurs in a line or block comment, it is also ignored.</li>
</ul>
<p>If a certain line of code is empty after removing comments, you must not output that line: each string in the answer list will be non-empty.</p>
<p>There will be no control characters, single quote, or double quote characters.</p>
<ul>
<li>For example, <code>source = "string s = "/* Not a comment. */";"</code> will not be a test case.</li>
</ul>
<p>Also, nothing else such as defines or macros will interfere with the comments.</p>
<p>It is guaranteed that every open block comment will eventually be closed, so <code>"/*"</code> outside of a line or block comment always starts a new comment.</p>
<p>Finally, implicit newline characters can be deleted by block comments. Please see the examples below for details.</p>
<p>After removing the comments from the source code, return <em>the source code in the same format</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> source = ["/*Test program */", "int main()", "{ ", " // variable declaration ", "int a, b, c;", "/* This is a test", " multiline ", " comment for ", " testing */", "a = b + c;", "}"]
<strong>Output:</strong> ["int main()","{ "," ","int a, b, c;","a = b + c;","}"]
<strong>Explanation:</strong> The line by line code is visualized as below:
/*Test program */
int main()
{
// variable declaration
int a, b, c;
/* This is a test
multiline
comment for
testing */
a = b + c;
}
The string /* denotes a block comment, including line 1 and lines 6-9. The string // denotes line 4 as comments.
The line by line output code is visualized as below:
int main()
{
int a, b, c;
a = b + c;
}
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> source = ["a/*comment", "line", "more_comment*/b"]
<strong>Output:</strong> ["ab"]
<strong>Explanation:</strong> The original source string is "a/*comment\nline\nmore_comment*/b", where we have bolded the newline characters. After deletion, the implicit newline characters are deleted, leaving the string "ab", which when delimited by newline characters becomes ["ab"].
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= source.length <= 100</code></li>
<li><code>0 <= source[i].length <= 80</code></li>
<li><code>source[i]</code> consists of printable <strong>ASCII</strong> characters.</li>
<li>Every open block comment is eventually closed.</li>
<li>There are no single-quote or double-quote in the input.</li>
</ul>
| Medium | 78.9K | 200.8K | 78,888 | 200,774 | 39.3% | ['mini-parser', 'ternary-expression-parser'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<string> removeComments(vector<string>& source) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public List<String> removeComments(String[] source) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def removeComments(self, source):\n \"\"\"\n :type source: List[str]\n :rtype: List[str]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def removeComments(self, source: List[str]) -> List[str]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nchar** removeComments(char** source, int sourceSize, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public IList<string> RemoveComments(string[] source) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string[]} source\n * @return {string[]}\n */\nvar removeComments = function(source) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function removeComments(source: string[]): string[] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String[] $source\n * @return String[]\n */\n function removeComments($source) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func removeComments(_ source: [String]) -> [String] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun removeComments(source: Array<String>): List<String> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<String> removeComments(List<String> source) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func removeComments(source []string) []string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String[]} source\n# @return {String[]}\ndef remove_comments(source)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def removeComments(source: Array[String]): List[String] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn remove_comments(source: Vec<String>) -> Vec<String> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (remove-comments source)\n (-> (listof string?) (listof string?))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec remove_comments(Source :: [unicode:unicode_binary()]) -> [unicode:unicode_binary()].\nremove_comments(Source) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec remove_comments(source :: [String.t]) :: [String.t]\n def remove_comments(source) do\n \n end\nend"}] | ["/*Test program */", "int main()", "{ ", " // variable declaration ", "int a, b, c;", "/* This is a test", " multiline ", " comment for ", " testing */", "a = b + c;", "}"] | {
"name": "removeComments",
"params": [
{
"name": "source",
"type": "string[]"
}
],
"return": {
"type": "list<string>"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'String'] |
723 | Candy Crush | candy-crush | null | Medium | 78.4K | 101.6K | 78,443 | 101,561 | 77.2% | [] | [] | Algorithms | null | [[110,5,112,113,114],[210,211,5,213,214],[310,311,3,313,314],[410,411,412,5,414],[5,1,512,3,3],[610,4,1,613,614],[710,1,2,713,714],[810,1,2,1,1],[1,1,2,2,2],[4,1,4,4,1014]] | {
"name": "candyCrush",
"params": [
{
"name": "board",
"type": "integer[][]"
}
],
"return": {
"type": "integer[][]"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Two Pointers', 'Matrix', 'Simulation'] |
724 | Find Pivot Index | find-pivot-index | <p>Given an array of integers <code>nums</code>, calculate the <strong>pivot index</strong> of this array.</p>
<p>The <strong>pivot index</strong> is the index where the sum of all the numbers <strong>strictly</strong> to the left of the index is equal to the sum of all the numbers <strong>strictly</strong> to the index's right.</p>
<p>If the index is on the left edge of the array, then the left sum is <code>0</code> because there are no elements to the left. This also applies to the right edge of the array.</p>
<p>Return <em>the <strong>leftmost pivot index</strong></em>. If no such index exists, return <code>-1</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,7,3,6,5,6]
<strong>Output:</strong> 3
<strong>Explanation:</strong>
The pivot index is 3.
Left sum = nums[0] + nums[1] + nums[2] = 1 + 7 + 3 = 11
Right sum = nums[4] + nums[5] = 5 + 6 = 11
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,2,3]
<strong>Output:</strong> -1
<strong>Explanation:</strong>
There is no index that satisfies the conditions in the problem statement.</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> nums = [2,1,-1]
<strong>Output:</strong> 0
<strong>Explanation:</strong>
The pivot index is 0.
Left sum = 0 (no elements to the left of index 0)
Right sum = nums[1] + nums[2] = 1 + -1 = 0
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= nums.length <= 10<sup>4</sup></code></li>
<li><code>-1000 <= nums[i] <= 1000</code></li>
</ul>
<p> </p>
<p><strong>Note:</strong> This question is the same as 1991: <a href="https://leetcode.com/problems/find-the-middle-index-in-array/" target="_blank">https://leetcode.com/problems/find-the-middle-index-in-array/</a></p>
| Easy | 1.4M | 2.3M | 1,358,248 | 2,258,206 | 60.1% | ['subarray-sum-equals-k', 'find-the-middle-index-in-array', 'number-of-ways-to-split-array', 'maximum-sum-score-of-array', 'left-and-right-sum-differences'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int pivotIndex(vector<int>& nums) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int pivotIndex(int[] nums) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def pivotIndex(self, nums):\n \"\"\"\n :type nums: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def pivotIndex(self, nums: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int pivotIndex(int* nums, int numsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int PivotIndex(int[] nums) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @return {number}\n */\nvar pivotIndex = function(nums) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function pivotIndex(nums: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @return Integer\n */\n function pivotIndex($nums) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func pivotIndex(_ nums: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun pivotIndex(nums: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int pivotIndex(List<int> nums) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func pivotIndex(nums []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @return {Integer}\ndef pivot_index(nums)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def pivotIndex(nums: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn pivot_index(nums: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (pivot-index nums)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec pivot_index(Nums :: [integer()]) -> integer().\npivot_index(Nums) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec pivot_index(nums :: [integer]) :: integer\n def pivot_index(nums) do\n \n end\nend"}] | [1,7,3,6,5,6] | {
"name": "pivotIndex",
"params": [
{
"name": "nums",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Prefix Sum'] |
725 | Split Linked List in Parts | split-linked-list-in-parts | <p>Given the <code>head</code> of a singly linked list and an integer <code>k</code>, split the linked list into <code>k</code> consecutive linked list parts.</p>
<p>The length of each part should be as equal as possible: no two parts should have a size differing by more than one. This may lead to some parts being null.</p>
<p>The parts should be in the order of occurrence in the input list, and parts occurring earlier should always have a size greater than or equal to parts occurring later.</p>
<p>Return <em>an array of the </em><code>k</code><em> parts</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/13/split1-lc.jpg" style="width: 400px; height: 134px;" />
<pre>
<strong>Input:</strong> head = [1,2,3], k = 5
<strong>Output:</strong> [[1],[2],[3],[],[]]
<strong>Explanation:</strong>
The first element output[0] has output[0].val = 1, output[0].next = null.
The last element output[4] is null, but its string representation as a ListNode is [].
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/13/split2-lc.jpg" style="width: 600px; height: 60px;" />
<pre>
<strong>Input:</strong> head = [1,2,3,4,5,6,7,8,9,10], k = 3
<strong>Output:</strong> [[1,2,3,4],[5,6,7],[8,9,10]]
<strong>Explanation:</strong>
The input has been split into consecutive parts with size difference at most 1, and earlier parts are a larger size than the later parts.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li>The number of nodes in the list is in the range <code>[0, 1000]</code>.</li>
<li><code>0 <= Node.val <= 1000</code></li>
<li><code>1 <= k <= 50</code></li>
</ul>
| Medium | 328.8K | 468.9K | 328,795 | 468,874 | 70.1% | ['rotate-list', 'odd-even-linked-list', 'split-a-circular-linked-list'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "/**\n * Definition for singly-linked list.\n * struct ListNode {\n * int val;\n * ListNode *next;\n * ListNode() : val(0), next(nullptr) {}\n * ListNode(int x) : val(x), next(nullptr) {}\n * ListNode(int x, ListNode *next) : val(x), next(next) {}\n * };\n */\nclass Solution {\npublic:\n vector<ListNode*> splitListToParts(ListNode* head, int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "/**\n * Definition for singly-linked list.\n * public class ListNode {\n * int val;\n * ListNode next;\n * ListNode() {}\n * ListNode(int val) { this.val = val; }\n * ListNode(int val, ListNode next) { this.val = val; this.next = next; }\n * }\n */\nclass Solution {\n public ListNode[] splitListToParts(ListNode head, int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "# Definition for singly-linked list.\n# class ListNode(object):\n# def __init__(self, val=0, next=None):\n# self.val = val\n# self.next = next\nclass Solution(object):\n def splitListToParts(self, head, k):\n \"\"\"\n :type head: Optional[ListNode]\n :type k: int\n :rtype: List[Optional[ListNode]]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "# Definition for singly-linked list.\n# class ListNode:\n# def __init__(self, val=0, next=None):\n# self.val = val\n# self.next = next\nclass Solution:\n def splitListToParts(self, head: Optional[ListNode], k: int) -> List[Optional[ListNode]]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Definition for singly-linked list.\n * struct ListNode {\n * int val;\n * struct ListNode *next;\n * };\n */\n/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nstruct ListNode** splitListToParts(struct ListNode* head, int k, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "/**\n * Definition for singly-linked list.\n * public class ListNode {\n * public int val;\n * public ListNode next;\n * public ListNode(int val=0, ListNode next=null) {\n * this.val = val;\n * this.next = next;\n * }\n * }\n */\npublic class Solution {\n public ListNode[] SplitListToParts(ListNode head, int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * Definition for singly-linked list.\n * function ListNode(val, next) {\n * this.val = (val===undefined ? 0 : val)\n * this.next = (next===undefined ? null : next)\n * }\n */\n/**\n * @param {ListNode} head\n * @param {number} k\n * @return {ListNode[]}\n */\nvar splitListToParts = function(head, k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "/**\n * Definition for singly-linked list.\n * class ListNode {\n * val: number\n * next: ListNode | null\n * constructor(val?: number, next?: ListNode | null) {\n * this.val = (val===undefined ? 0 : val)\n * this.next = (next===undefined ? null : next)\n * }\n * }\n */\n\nfunction splitListToParts(head: ListNode | null, k: number): Array<ListNode | null> {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "/**\n * Definition for a singly-linked list.\n * class ListNode {\n * public $val = 0;\n * public $next = null;\n * function __construct($val = 0, $next = null) {\n * $this->val = $val;\n * $this->next = $next;\n * }\n * }\n */\nclass Solution {\n\n /**\n * @param ListNode $head\n * @param Integer $k\n * @return ListNode[]\n */\n function splitListToParts($head, $k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "/**\n * Definition for singly-linked list.\n * public class ListNode {\n * public var val: Int\n * public var next: ListNode?\n * public init() { self.val = 0; self.next = nil; }\n * public init(_ val: Int) { self.val = val; self.next = nil; }\n * public init(_ val: Int, _ next: ListNode?) { self.val = val; self.next = next; }\n * }\n */\nclass Solution {\n func splitListToParts(_ head: ListNode?, _ k: Int) -> [ListNode?] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "/**\n * Example:\n * var li = ListNode(5)\n * var v = li.`val`\n * Definition for singly-linked list.\n * class ListNode(var `val`: Int) {\n * var next: ListNode? = null\n * }\n */\nclass Solution {\n fun splitListToParts(head: ListNode?, k: Int): Array<ListNode?> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "/**\n * Definition for singly-linked list.\n * class ListNode {\n * int val;\n * ListNode? next;\n * ListNode([this.val = 0, this.next]);\n * }\n */\nclass Solution {\n List<ListNode?> splitListToParts(ListNode? head, int k) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "/**\n * Definition for singly-linked list.\n * type ListNode struct {\n * Val int\n * Next *ListNode\n * }\n */\nfunc splitListToParts(head *ListNode, k int) []*ListNode {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# Definition for singly-linked list.\n# class ListNode\n# attr_accessor :val, :next\n# def initialize(val = 0, _next = nil)\n# @val = val\n# @next = _next\n# end\n# end\n# @param {ListNode} head\n# @param {Integer} k\n# @return {ListNode[]}\ndef split_list_to_parts(head, k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "/**\n * Definition for singly-linked list.\n * class ListNode(_x: Int = 0, _next: ListNode = null) {\n * var next: ListNode = _next\n * var x: Int = _x\n * }\n */\nobject Solution {\n def splitListToParts(head: ListNode, k: Int): Array[ListNode] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "// Definition for singly-linked list.\n// #[derive(PartialEq, Eq, Clone, Debug)]\n// pub struct ListNode {\n// pub val: i32,\n// pub next: Option<Box<ListNode>>\n// }\n// \n// impl ListNode {\n// #[inline]\n// fn new(val: i32) -> Self {\n// ListNode {\n// next: None,\n// val\n// }\n// }\n// }\nimpl Solution {\n pub fn split_list_to_parts(head: Option<Box<ListNode>>, k: i32) -> Vec<Option<Box<ListNode>>> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "; Definition for singly-linked list:\n#|\n\n; val : integer?\n; next : (or/c list-node? #f)\n(struct list-node\n (val next) #:mutable #:transparent)\n\n; constructor\n(define (make-list-node [val 0])\n (list-node val #f))\n\n|#\n\n(define/contract (split-list-to-parts head k)\n (-> (or/c list-node? #f) exact-integer? (listof (or/c list-node? #f)))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "%% Definition for singly-linked list.\n%%\n%% -record(list_node, {val = 0 :: integer(),\n%% next = null :: 'null' | #list_node{}}).\n\n-spec split_list_to_parts(Head :: #list_node{} | null, K :: integer()) -> [#list_node{} | null].\nsplit_list_to_parts(Head, K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "# Definition for singly-linked list.\n#\n# defmodule ListNode do\n# @type t :: %__MODULE__{\n# val: integer,\n# next: ListNode.t() | nil\n# }\n# defstruct val: 0, next: nil\n# end\n\ndefmodule Solution do\n @spec split_list_to_parts(head :: ListNode.t | nil, k :: integer) :: [ListNode.t | nil]\n def split_list_to_parts(head, k) do\n \n end\nend"}] | [1,2,3]
5 | {
"name": "splitListToParts",
"params": [
{
"name": "head",
"type": "ListNode"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "ListNode[]"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Linked List'] |
726 | Number of Atoms | number-of-atoms | <p>Given a string <code>formula</code> representing a chemical formula, return <em>the count of each atom</em>.</p>
<p>The atomic element always starts with an uppercase character, then zero or more lowercase letters, representing the name.</p>
<p>One or more digits representing that element's count may follow if the count is greater than <code>1</code>. If the count is <code>1</code>, no digits will follow.</p>
<ul>
<li>For example, <code>"H2O"</code> and <code>"H2O2"</code> are possible, but <code>"H1O2"</code> is impossible.</li>
</ul>
<p>Two formulas are concatenated together to produce another formula.</p>
<ul>
<li>For example, <code>"H2O2He3Mg4"</code> is also a formula.</li>
</ul>
<p>A formula placed in parentheses, and a count (optionally added) is also a formula.</p>
<ul>
<li>For example, <code>"(H2O2)"</code> and <code>"(H2O2)3"</code> are formulas.</li>
</ul>
<p>Return the count of all elements as a string in the following form: the first name (in sorted order), followed by its count (if that count is more than <code>1</code>), followed by the second name (in sorted order), followed by its count (if that count is more than <code>1</code>), and so on.</p>
<p>The test cases are generated so that all the values in the output fit in a <strong>32-bit</strong> integer.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> formula = "H2O"
<strong>Output:</strong> "H2O"
<strong>Explanation:</strong> The count of elements are {'H': 2, 'O': 1}.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> formula = "Mg(OH)2"
<strong>Output:</strong> "H2MgO2"
<strong>Explanation:</strong> The count of elements are {'H': 2, 'Mg': 1, 'O': 2}.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> formula = "K4(ON(SO3)2)2"
<strong>Output:</strong> "K4N2O14S4"
<strong>Explanation:</strong> The count of elements are {'K': 4, 'N': 2, 'O': 14, 'S': 4}.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= formula.length <= 1000</code></li>
<li><code>formula</code> consists of English letters, digits, <code>'('</code>, and <code>')'</code>.</li>
<li><code>formula</code> is always valid.</li>
</ul>
| Hard | 153.7K | 236.5K | 153,737 | 236,484 | 65.0% | ['decode-string', 'encode-string-with-shortest-length', 'parse-lisp-expression'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n string countOfAtoms(string formula) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public String countOfAtoms(String formula) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def countOfAtoms(self, formula):\n \"\"\"\n :type formula: str\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def countOfAtoms(self, formula: str) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char* countOfAtoms(char* formula) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public string CountOfAtoms(string formula) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} formula\n * @return {string}\n */\nvar countOfAtoms = function(formula) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function countOfAtoms(formula: string): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $formula\n * @return String\n */\n function countOfAtoms($formula) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func countOfAtoms(_ formula: String) -> String {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun countOfAtoms(formula: String): String {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String countOfAtoms(String formula) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func countOfAtoms(formula string) string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} formula\n# @return {String}\ndef count_of_atoms(formula)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def countOfAtoms(formula: String): String = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn count_of_atoms(formula: String) -> String {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (count-of-atoms formula)\n (-> string? string?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec count_of_atoms(Formula :: unicode:unicode_binary()) -> unicode:unicode_binary().\ncount_of_atoms(Formula) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec count_of_atoms(formula :: String.t) :: String.t\n def count_of_atoms(formula) do\n \n end\nend"}] | "H2O" | {
"name": "countOfAtoms",
"params": [
{
"name": "formula",
"type": "string"
}
],
"return": {
"type": "string"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Hash Table', 'String', 'Stack', 'Sorting'] |
727 | Minimum Window Subsequence | minimum-window-subsequence | null | Hard | 95.9K | 220K | 95,877 | 219,953 | 43.6% | ['minimum-window-substring', 'longest-continuous-increasing-subsequence'] | [] | Algorithms | null | "abcdebdde"
"bde" | {
"name": "minWindow",
"params": [
{
"name": "s1",
"type": "string"
},
{
"name": "s2",
"type": "string"
}
],
"return": {
"type": "string"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['String', 'Dynamic Programming', 'Sliding Window'] |
728 | Self Dividing Numbers | self-dividing-numbers | <p>A <strong>self-dividing number</strong> is a number that is divisible by every digit it contains.</p>
<ul>
<li>For example, <code>128</code> is <strong>a self-dividing number</strong> because <code>128 % 1 == 0</code>, <code>128 % 2 == 0</code>, and <code>128 % 8 == 0</code>.</li>
</ul>
<p>A <strong>self-dividing number</strong> is not allowed to contain the digit zero.</p>
<p>Given two integers <code>left</code> and <code>right</code>, return <em>a list of all the <strong>self-dividing numbers</strong> in the range</em> <code>[left, right]</code> (both <strong>inclusive</strong>).</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre><strong>Input:</strong> left = 1, right = 22
<strong>Output:</strong> [1,2,3,4,5,6,7,8,9,11,12,15,22]
</pre><p><strong class="example">Example 2:</strong></p>
<pre><strong>Input:</strong> left = 47, right = 85
<strong>Output:</strong> [48,55,66,77]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= left <= right <= 10<sup>4</sup></code></li>
</ul>
| Easy | 276.2K | 347.5K | 276,162 | 347,488 | 79.5% | ['perfect-number', 'check-if-number-has-equal-digit-count-and-digit-value', 'count-the-digits-that-divide-a-number'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<int> selfDividingNumbers(int left, int right) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public List<Integer> selfDividingNumbers(int left, int right) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def selfDividingNumbers(self, left, right):\n \"\"\"\n :type left: int\n :type right: int\n :rtype: List[int]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def selfDividingNumbers(self, left: int, right: int) -> List[int]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nint* selfDividingNumbers(int left, int right, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public IList<int> SelfDividingNumbers(int left, int right) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} left\n * @param {number} right\n * @return {number[]}\n */\nvar selfDividingNumbers = function(left, right) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function selfDividingNumbers(left: number, right: number): number[] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $left\n * @param Integer $right\n * @return Integer[]\n */\n function selfDividingNumbers($left, $right) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func selfDividingNumbers(_ left: Int, _ right: Int) -> [Int] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun selfDividingNumbers(left: Int, right: Int): List<Int> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<int> selfDividingNumbers(int left, int right) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func selfDividingNumbers(left int, right int) []int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} left\n# @param {Integer} right\n# @return {Integer[]}\ndef self_dividing_numbers(left, right)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def selfDividingNumbers(left: Int, right: Int): List[Int] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn self_dividing_numbers(left: i32, right: i32) -> Vec<i32> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (self-dividing-numbers left right)\n (-> exact-integer? exact-integer? (listof exact-integer?))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec self_dividing_numbers(Left :: integer(), Right :: integer()) -> [integer()].\nself_dividing_numbers(Left, Right) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec self_dividing_numbers(left :: integer, right :: integer) :: [integer]\n def self_dividing_numbers(left, right) do\n \n end\nend"}] | 1
22 | {
"name": "selfDividingNumbers",
"params": [
{
"name": "left",
"type": "integer"
},
{
"name": "right",
"type": "integer"
}
],
"return": {
"type": "list<integer>"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math'] |
729 | My Calendar I | my-calendar-i | <p>You are implementing a program to use as your calendar. We can add a new event if adding the event will not cause a <strong>double booking</strong>.</p>
<p>A <strong>double booking</strong> happens when two events have some non-empty intersection (i.e., some moment is common to both events.).</p>
<p>The event can be represented as a pair of integers <code>startTime</code> and <code>endTime</code> that represents a booking on the half-open interval <code>[startTime, endTime)</code>, the range of real numbers <code>x</code> such that <code>startTime <= x < endTime</code>.</p>
<p>Implement the <code>MyCalendar</code> class:</p>
<ul>
<li><code>MyCalendar()</code> Initializes the calendar object.</li>
<li><code>boolean book(int startTime, int endTime)</code> Returns <code>true</code> if the event can be added to the calendar successfully without causing a <strong>double booking</strong>. Otherwise, return <code>false</code> and do not add the event to the calendar.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["MyCalendar", "book", "book", "book"]
[[], [10, 20], [15, 25], [20, 30]]
<strong>Output</strong>
[null, true, false, true]
<strong>Explanation</strong>
MyCalendar myCalendar = new MyCalendar();
myCalendar.book(10, 20); // return True
myCalendar.book(15, 25); // return False, It can not be booked because time 15 is already booked by another event.
myCalendar.book(20, 30); // return True, The event can be booked, as the first event takes every time less than 20, but not including 20.</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= start < end <= 10<sup>9</sup></code></li>
<li>At most <code>1000</code> calls will be made to <code>book</code>.</li>
</ul>
| Medium | 420.2K | 720K | 420,152 | 720,020 | 58.4% | ['my-calendar-ii', 'my-calendar-iii', 'determine-if-two-events-have-conflict'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class MyCalendar {\npublic:\n MyCalendar() {\n \n }\n \n bool book(int startTime, int endTime) {\n \n }\n};\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * MyCalendar* obj = new MyCalendar();\n * bool param_1 = obj->book(startTime,endTime);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class MyCalendar {\n\n public MyCalendar() {\n \n }\n \n public boolean book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * MyCalendar obj = new MyCalendar();\n * boolean param_1 = obj.book(startTime,endTime);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class MyCalendar(object):\n\n def __init__(self):\n \n\n def book(self, startTime, endTime):\n \"\"\"\n :type startTime: int\n :type endTime: int\n :rtype: bool\n \"\"\"\n \n\n\n# Your MyCalendar object will be instantiated and called as such:\n# obj = MyCalendar()\n# param_1 = obj.book(startTime,endTime)"}, {"value": "python3", "text": "Python3", "defaultCode": "class MyCalendar:\n\n def __init__(self):\n \n\n def book(self, startTime: int, endTime: int) -> bool:\n \n\n\n# Your MyCalendar object will be instantiated and called as such:\n# obj = MyCalendar()\n# param_1 = obj.book(startTime,endTime)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} MyCalendar;\n\n\nMyCalendar* myCalendarCreate() {\n \n}\n\nbool myCalendarBook(MyCalendar* obj, int startTime, int endTime) {\n \n}\n\nvoid myCalendarFree(MyCalendar* obj) {\n \n}\n\n/**\n * Your MyCalendar struct will be instantiated and called as such:\n * MyCalendar* obj = myCalendarCreate();\n * bool param_1 = myCalendarBook(obj, startTime, endTime);\n \n * myCalendarFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class MyCalendar {\n\n public MyCalendar() {\n \n }\n \n public bool Book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * MyCalendar obj = new MyCalendar();\n * bool param_1 = obj.Book(startTime,endTime);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "\nvar MyCalendar = function() {\n \n};\n\n/** \n * @param {number} startTime \n * @param {number} endTime\n * @return {boolean}\n */\nMyCalendar.prototype.book = function(startTime, endTime) {\n \n};\n\n/** \n * Your MyCalendar object will be instantiated and called as such:\n * var obj = new MyCalendar()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class MyCalendar {\n constructor() {\n \n }\n\n book(startTime: number, endTime: number): boolean {\n \n }\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * var obj = new MyCalendar()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class MyCalendar {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param Integer $startTime\n * @param Integer $endTime\n * @return Boolean\n */\n function book($startTime, $endTime) {\n \n }\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * $obj = MyCalendar();\n * $ret_1 = $obj->book($startTime, $endTime);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass MyCalendar {\n\n init() {\n \n }\n \n func book(_ startTime: Int, _ endTime: Int) -> Bool {\n \n }\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * let obj = MyCalendar()\n * let ret_1: Bool = obj.book(startTime, endTime)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class MyCalendar() {\n\n fun book(startTime: Int, endTime: Int): Boolean {\n \n }\n\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * var obj = MyCalendar()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class MyCalendar {\n\n MyCalendar() {\n \n }\n \n bool book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * MyCalendar obj = MyCalendar();\n * bool param1 = obj.book(startTime,endTime);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type MyCalendar struct {\n \n}\n\n\nfunc Constructor() MyCalendar {\n \n}\n\n\nfunc (this *MyCalendar) Book(startTime int, endTime int) bool {\n \n}\n\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * obj := Constructor();\n * param_1 := obj.Book(startTime,endTime);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class MyCalendar\n def initialize()\n \n end\n\n\n=begin\n :type start_time: Integer\n :type end_time: Integer\n :rtype: Boolean\n=end\n def book(start_time, end_time)\n \n end\n\n\nend\n\n# Your MyCalendar object will be instantiated and called as such:\n# obj = MyCalendar.new()\n# param_1 = obj.book(start_time, end_time)"}, {"value": "scala", "text": "Scala", "defaultCode": "class MyCalendar() {\n\n def book(startTime: Int, endTime: Int): Boolean = {\n \n }\n\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * val obj = new MyCalendar()\n * val param_1 = obj.book(startTime,endTime)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct MyCalendar {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl MyCalendar {\n\n fn new() -> Self {\n \n }\n \n fn book(&self, start_time: i32, end_time: i32) -> bool {\n \n }\n}\n\n/**\n * Your MyCalendar object will be instantiated and called as such:\n * let obj = MyCalendar::new();\n * let ret_1: bool = obj.book(startTime, endTime);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define my-calendar%\n (class object%\n (super-new)\n \n (init-field)\n \n ; book : exact-integer? exact-integer? -> boolean?\n (define/public (book start-time end-time)\n )))\n\n;; Your my-calendar% object will be instantiated and called as such:\n;; (define obj (new my-calendar%))\n;; (define param_1 (send obj book start-time end-time))"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec my_calendar_init_() -> any().\nmy_calendar_init_() ->\n .\n\n-spec my_calendar_book(StartTime :: integer(), EndTime :: integer()) -> boolean().\nmy_calendar_book(StartTime, EndTime) ->\n .\n\n\n%% Your functions will be called as such:\n%% my_calendar_init_(),\n%% Param_1 = my_calendar_book(StartTime, EndTime),\n\n%% my_calendar_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule MyCalendar do\n @spec init_() :: any\n def init_() do\n \n end\n\n @spec book(start_time :: integer, end_time :: integer) :: boolean\n def book(start_time, end_time) do\n \n end\nend\n\n# Your functions will be called as such:\n# MyCalendar.init_()\n# param_1 = MyCalendar.book(start_time, end_time)\n\n# MyCalendar.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["MyCalendar","book","book","book"]
[[],[10,20],[15,25],[20,30]] | {
"classname": "MyCalendar",
"constructor": {
"params": []
},
"methods": [
{
"name": "book",
"params": [
{
"type": "integer",
"name": "startTime"
},
{
"type": "integer",
"name": "endTime"
}
],
"return": {
"type": "boolean"
}
}
],
"systemdesign": true,
"params": [
{
"name": "starts",
"type": "integer[]"
},
{
"name": "ends",
"type": "integer[]"
}
],
"return": {
"type": "list<boolean>",
"dealloc": true
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Binary Search', 'Design', 'Segment Tree', 'Ordered Set'] |
730 | Count Different Palindromic Subsequences | count-different-palindromic-subsequences | <p>Given a string s, return <em>the number of different non-empty palindromic subsequences in</em> <code>s</code>. Since the answer may be very large, return it <strong>modulo</strong> <code>10<sup>9</sup> + 7</code>.</p>
<p>A subsequence of a string is obtained by deleting zero or more characters from the string.</p>
<p>A sequence is palindromic if it is equal to the sequence reversed.</p>
<p>Two sequences <code>a<sub>1</sub>, a<sub>2</sub>, ...</code> and <code>b<sub>1</sub>, b<sub>2</sub>, ...</code> are different if there is some <code>i</code> for which <code>a<sub>i</sub> != b<sub>i</sub></code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = "bccb"
<strong>Output:</strong> 6
<strong>Explanation:</strong> The 6 different non-empty palindromic subsequences are 'b', 'c', 'bb', 'cc', 'bcb', 'bccb'.
Note that 'bcb' is counted only once, even though it occurs twice.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = "abcdabcdabcdabcdabcdabcdabcdabcddcbadcbadcbadcbadcbadcbadcbadcba"
<strong>Output:</strong> 104860361
<strong>Explanation:</strong> There are 3104860382 different non-empty palindromic subsequences, which is 104860361 modulo 10<sup>9</sup> + 7.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s.length <= 1000</code></li>
<li><code>s[i]</code> is either <code>'a'</code>, <code>'b'</code>, <code>'c'</code>, or <code>'d'</code>.</li>
</ul>
| Hard | 40.9K | 88.5K | 40,911 | 88,518 | 46.2% | ['longest-palindromic-subsequence', 'count-palindromic-subsequences'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int countPalindromicSubsequences(string s) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int countPalindromicSubsequences(String s) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def countPalindromicSubsequences(self, s):\n \"\"\"\n :type s: str\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def countPalindromicSubsequences(self, s: str) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int countPalindromicSubsequences(char* s) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int CountPalindromicSubsequences(string s) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s\n * @return {number}\n */\nvar countPalindromicSubsequences = function(s) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function countPalindromicSubsequences(s: string): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s\n * @return Integer\n */\n function countPalindromicSubsequences($s) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func countPalindromicSubsequences(_ s: String) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun countPalindromicSubsequences(s: String): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int countPalindromicSubsequences(String s) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func countPalindromicSubsequences(s string) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s\n# @return {Integer}\ndef count_palindromic_subsequences(s)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def countPalindromicSubsequences(s: String): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn count_palindromic_subsequences(s: String) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (count-palindromic-subsequences s)\n (-> string? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec count_palindromic_subsequences(S :: unicode:unicode_binary()) -> integer().\ncount_palindromic_subsequences(S) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec count_palindromic_subsequences(s :: String.t) :: integer\n def count_palindromic_subsequences(s) do\n \n end\nend"}] | "bccb" | {
"name": "countPalindromicSubsequences",
"params": [
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['String', 'Dynamic Programming'] |
731 | My Calendar II | my-calendar-ii | <p>You are implementing a program to use as your calendar. We can add a new event if adding the event will not cause a <strong>triple booking</strong>.</p>
<p>A <strong>triple booking</strong> happens when three events have some non-empty intersection (i.e., some moment is common to all the three events.).</p>
<p>The event can be represented as a pair of integers <code>startTime</code> and <code>endTime</code> that represents a booking on the half-open interval <code>[startTime, endTime)</code>, the range of real numbers <code>x</code> such that <code>startTime <= x < endTime</code>.</p>
<p>Implement the <code>MyCalendarTwo</code> class:</p>
<ul>
<li><code>MyCalendarTwo()</code> Initializes the calendar object.</li>
<li><code>boolean book(int startTime, int endTime)</code> Returns <code>true</code> if the event can be added to the calendar successfully without causing a <strong>triple booking</strong>. Otherwise, return <code>false</code> and do not add the event to the calendar.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["MyCalendarTwo", "book", "book", "book", "book", "book", "book"]
[[], [10, 20], [50, 60], [10, 40], [5, 15], [5, 10], [25, 55]]
<strong>Output</strong>
[null, true, true, true, false, true, true]
<strong>Explanation</strong>
MyCalendarTwo myCalendarTwo = new MyCalendarTwo();
myCalendarTwo.book(10, 20); // return True, The event can be booked.
myCalendarTwo.book(50, 60); // return True, The event can be booked.
myCalendarTwo.book(10, 40); // return True, The event can be double booked.
myCalendarTwo.book(5, 15); // return False, The event cannot be booked, because it would result in a triple booking.
myCalendarTwo.book(5, 10); // return True, The event can be booked, as it does not use time 10 which is already double booked.
myCalendarTwo.book(25, 55); // return True, The event can be booked, as the time in [25, 40) will be double booked with the third event, the time [40, 50) will be single booked, and the time [50, 55) will be double booked with the second event.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= start < end <= 10<sup>9</sup></code></li>
<li>At most <code>1000</code> calls will be made to <code>book</code>.</li>
</ul>
| Medium | 192.8K | 306.9K | 192,809 | 306,854 | 62.8% | ['my-calendar-i', 'my-calendar-iii'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class MyCalendarTwo {\npublic:\n MyCalendarTwo() {\n \n }\n \n bool book(int startTime, int endTime) {\n \n }\n};\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * MyCalendarTwo* obj = new MyCalendarTwo();\n * bool param_1 = obj->book(startTime,endTime);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class MyCalendarTwo {\n\n public MyCalendarTwo() {\n \n }\n \n public boolean book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * MyCalendarTwo obj = new MyCalendarTwo();\n * boolean param_1 = obj.book(startTime,endTime);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class MyCalendarTwo(object):\n\n def __init__(self):\n \n\n def book(self, startTime, endTime):\n \"\"\"\n :type startTime: int\n :type endTime: int\n :rtype: bool\n \"\"\"\n \n\n\n# Your MyCalendarTwo object will be instantiated and called as such:\n# obj = MyCalendarTwo()\n# param_1 = obj.book(startTime,endTime)"}, {"value": "python3", "text": "Python3", "defaultCode": "class MyCalendarTwo:\n\n def __init__(self):\n \n\n def book(self, startTime: int, endTime: int) -> bool:\n \n\n\n# Your MyCalendarTwo object will be instantiated and called as such:\n# obj = MyCalendarTwo()\n# param_1 = obj.book(startTime,endTime)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} MyCalendarTwo;\n\n\nMyCalendarTwo* myCalendarTwoCreate() {\n \n}\n\nbool myCalendarTwoBook(MyCalendarTwo* obj, int startTime, int endTime) {\n \n}\n\nvoid myCalendarTwoFree(MyCalendarTwo* obj) {\n \n}\n\n/**\n * Your MyCalendarTwo struct will be instantiated and called as such:\n * MyCalendarTwo* obj = myCalendarTwoCreate();\n * bool param_1 = myCalendarTwoBook(obj, startTime, endTime);\n \n * myCalendarTwoFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class MyCalendarTwo {\n\n public MyCalendarTwo() {\n \n }\n \n public bool Book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * MyCalendarTwo obj = new MyCalendarTwo();\n * bool param_1 = obj.Book(startTime,endTime);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "\nvar MyCalendarTwo = function() {\n \n};\n\n/** \n * @param {number} startTime \n * @param {number} endTime\n * @return {boolean}\n */\nMyCalendarTwo.prototype.book = function(startTime, endTime) {\n \n};\n\n/** \n * Your MyCalendarTwo object will be instantiated and called as such:\n * var obj = new MyCalendarTwo()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class MyCalendarTwo {\n constructor() {\n \n }\n\n book(startTime: number, endTime: number): boolean {\n \n }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * var obj = new MyCalendarTwo()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class MyCalendarTwo {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param Integer $startTime\n * @param Integer $endTime\n * @return Boolean\n */\n function book($startTime, $endTime) {\n \n }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * $obj = MyCalendarTwo();\n * $ret_1 = $obj->book($startTime, $endTime);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass MyCalendarTwo {\n\n init() {\n \n }\n \n func book(_ startTime: Int, _ endTime: Int) -> Bool {\n \n }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * let obj = MyCalendarTwo()\n * let ret_1: Bool = obj.book(startTime, endTime)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class MyCalendarTwo() {\n\n fun book(startTime: Int, endTime: Int): Boolean {\n \n }\n\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * var obj = MyCalendarTwo()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class MyCalendarTwo {\n\n MyCalendarTwo() {\n \n }\n \n bool book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * MyCalendarTwo obj = MyCalendarTwo();\n * bool param1 = obj.book(startTime,endTime);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type MyCalendarTwo struct {\n \n}\n\n\nfunc Constructor() MyCalendarTwo {\n \n}\n\n\nfunc (this *MyCalendarTwo) Book(startTime int, endTime int) bool {\n \n}\n\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * obj := Constructor();\n * param_1 := obj.Book(startTime,endTime);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class MyCalendarTwo\n def initialize()\n \n end\n\n\n=begin\n :type start_time: Integer\n :type end_time: Integer\n :rtype: Boolean\n=end\n def book(start_time, end_time)\n \n end\n\n\nend\n\n# Your MyCalendarTwo object will be instantiated and called as such:\n# obj = MyCalendarTwo.new()\n# param_1 = obj.book(start_time, end_time)"}, {"value": "scala", "text": "Scala", "defaultCode": "class MyCalendarTwo() {\n\n def book(startTime: Int, endTime: Int): Boolean = {\n \n }\n\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * val obj = new MyCalendarTwo()\n * val param_1 = obj.book(startTime,endTime)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct MyCalendarTwo {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl MyCalendarTwo {\n\n fn new() -> Self {\n \n }\n \n fn book(&self, start_time: i32, end_time: i32) -> bool {\n \n }\n}\n\n/**\n * Your MyCalendarTwo object will be instantiated and called as such:\n * let obj = MyCalendarTwo::new();\n * let ret_1: bool = obj.book(startTime, endTime);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define my-calendar-two%\n (class object%\n (super-new)\n \n (init-field)\n \n ; book : exact-integer? exact-integer? -> boolean?\n (define/public (book start-time end-time)\n )))\n\n;; Your my-calendar-two% object will be instantiated and called as such:\n;; (define obj (new my-calendar-two%))\n;; (define param_1 (send obj book start-time end-time))"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec my_calendar_two_init_() -> any().\nmy_calendar_two_init_() ->\n .\n\n-spec my_calendar_two_book(StartTime :: integer(), EndTime :: integer()) -> boolean().\nmy_calendar_two_book(StartTime, EndTime) ->\n .\n\n\n%% Your functions will be called as such:\n%% my_calendar_two_init_(),\n%% Param_1 = my_calendar_two_book(StartTime, EndTime),\n\n%% my_calendar_two_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule MyCalendarTwo do\n @spec init_() :: any\n def init_() do\n \n end\n\n @spec book(start_time :: integer, end_time :: integer) :: boolean\n def book(start_time, end_time) do\n \n end\nend\n\n# Your functions will be called as such:\n# MyCalendarTwo.init_()\n# param_1 = MyCalendarTwo.book(start_time, end_time)\n\n# MyCalendarTwo.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["MyCalendarTwo","book","book","book","book","book","book"]
[[],[10,20],[50,60],[10,40],[5,15],[5,10],[25,55]] | {
"classname": "MyCalendarTwo",
"constructor": {
"params": []
},
"methods": [
{
"name": "book",
"params": [
{
"type": "integer",
"name": "startTime"
},
{
"type": "integer",
"name": "endTime"
}
],
"return": {
"type": "boolean"
}
}
],
"systemdesign": true,
"params": [
{
"name": "starts",
"type": "integer[]"
},
{
"name": "ends",
"type": "integer[]"
}
],
"return": {
"type": "list<boolean>",
"dealloc": true
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Binary Search', 'Design', 'Segment Tree', 'Prefix Sum', 'Ordered Set'] |
732 | My Calendar III | my-calendar-iii | <p>A <code>k</code>-booking happens when <code>k</code> events have some non-empty intersection (i.e., there is some time that is common to all <code>k</code> events.)</p>
<p>You are given some events <code>[startTime, endTime)</code>, after each given event, return an integer <code>k</code> representing the maximum <code>k</code>-booking between all the previous events.</p>
<p>Implement the <code>MyCalendarThree</code> class:</p>
<ul>
<li><code>MyCalendarThree()</code> Initializes the object.</li>
<li><code>int book(int startTime, int endTime)</code> Returns an integer <code>k</code> representing the largest integer such that there exists a <code>k</code>-booking in the calendar.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["MyCalendarThree", "book", "book", "book", "book", "book", "book"]
[[], [10, 20], [50, 60], [10, 40], [5, 15], [5, 10], [25, 55]]
<strong>Output</strong>
[null, 1, 1, 2, 3, 3, 3]
<strong>Explanation</strong>
MyCalendarThree myCalendarThree = new MyCalendarThree();
myCalendarThree.book(10, 20); // return 1
myCalendarThree.book(50, 60); // return 1
myCalendarThree.book(10, 40); // return 2
myCalendarThree.book(5, 15); // return 3
myCalendarThree.book(5, 10); // return 3
myCalendarThree.book(25, 55); // return 3
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= startTime < endTime <= 10<sup>9</sup></code></li>
<li>At most <code>400</code> calls will be made to <code>book</code>.</li>
</ul>
| Hard | 100K | 138.8K | 100,012 | 138,813 | 72.0% | ['my-calendar-i', 'my-calendar-ii', 'count-integers-in-intervals'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class MyCalendarThree {\npublic:\n MyCalendarThree() {\n \n }\n \n int book(int startTime, int endTime) {\n \n }\n};\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * MyCalendarThree* obj = new MyCalendarThree();\n * int param_1 = obj->book(startTime,endTime);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class MyCalendarThree {\n\n public MyCalendarThree() {\n \n }\n \n public int book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * MyCalendarThree obj = new MyCalendarThree();\n * int param_1 = obj.book(startTime,endTime);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class MyCalendarThree(object):\n\n def __init__(self):\n \n\n def book(self, startTime, endTime):\n \"\"\"\n :type startTime: int\n :type endTime: int\n :rtype: int\n \"\"\"\n \n\n\n# Your MyCalendarThree object will be instantiated and called as such:\n# obj = MyCalendarThree()\n# param_1 = obj.book(startTime,endTime)"}, {"value": "python3", "text": "Python3", "defaultCode": "class MyCalendarThree:\n\n def __init__(self):\n \n\n def book(self, startTime: int, endTime: int) -> int:\n \n\n\n# Your MyCalendarThree object will be instantiated and called as such:\n# obj = MyCalendarThree()\n# param_1 = obj.book(startTime,endTime)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} MyCalendarThree;\n\n\nMyCalendarThree* myCalendarThreeCreate() {\n \n}\n\nint myCalendarThreeBook(MyCalendarThree* obj, int startTime, int endTime) {\n \n}\n\nvoid myCalendarThreeFree(MyCalendarThree* obj) {\n \n}\n\n/**\n * Your MyCalendarThree struct will be instantiated and called as such:\n * MyCalendarThree* obj = myCalendarThreeCreate();\n * int param_1 = myCalendarThreeBook(obj, startTime, endTime);\n \n * myCalendarThreeFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class MyCalendarThree {\n\n public MyCalendarThree() {\n \n }\n \n public int Book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * MyCalendarThree obj = new MyCalendarThree();\n * int param_1 = obj.Book(startTime,endTime);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "\nvar MyCalendarThree = function() {\n \n};\n\n/** \n * @param {number} startTime \n * @param {number} endTime\n * @return {number}\n */\nMyCalendarThree.prototype.book = function(startTime, endTime) {\n \n};\n\n/** \n * Your MyCalendarThree object will be instantiated and called as such:\n * var obj = new MyCalendarThree()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class MyCalendarThree {\n constructor() {\n \n }\n\n book(startTime: number, endTime: number): number {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * var obj = new MyCalendarThree()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class MyCalendarThree {\n /**\n */\n function __construct() {\n \n }\n \n /**\n * @param Integer $startTime\n * @param Integer $endTime\n * @return Integer\n */\n function book($startTime, $endTime) {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * $obj = MyCalendarThree();\n * $ret_1 = $obj->book($startTime, $endTime);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass MyCalendarThree {\n\n init() {\n \n }\n \n func book(_ startTime: Int, _ endTime: Int) -> Int {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * let obj = MyCalendarThree()\n * let ret_1: Int = obj.book(startTime, endTime)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class MyCalendarThree() {\n\n fun book(startTime: Int, endTime: Int): Int {\n \n }\n\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * var obj = MyCalendarThree()\n * var param_1 = obj.book(startTime,endTime)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class MyCalendarThree {\n\n MyCalendarThree() {\n \n }\n \n int book(int startTime, int endTime) {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * MyCalendarThree obj = MyCalendarThree();\n * int param1 = obj.book(startTime,endTime);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type MyCalendarThree struct {\n \n}\n\n\nfunc Constructor() MyCalendarThree {\n \n}\n\n\nfunc (this *MyCalendarThree) Book(startTime int, endTime int) int {\n \n}\n\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * obj := Constructor();\n * param_1 := obj.Book(startTime,endTime);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class MyCalendarThree\n def initialize()\n \n end\n\n\n=begin\n :type start_time: Integer\n :type end_time: Integer\n :rtype: Integer\n=end\n def book(start_time, end_time)\n \n end\n\n\nend\n\n# Your MyCalendarThree object will be instantiated and called as such:\n# obj = MyCalendarThree.new()\n# param_1 = obj.book(start_time, end_time)"}, {"value": "scala", "text": "Scala", "defaultCode": "class MyCalendarThree() {\n\n def book(startTime: Int, endTime: Int): Int = {\n \n }\n\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * val obj = new MyCalendarThree()\n * val param_1 = obj.book(startTime,endTime)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct MyCalendarThree {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl MyCalendarThree {\n\n fn new() -> Self {\n \n }\n \n fn book(&self, start_time: i32, end_time: i32) -> i32 {\n \n }\n}\n\n/**\n * Your MyCalendarThree object will be instantiated and called as such:\n * let obj = MyCalendarThree::new();\n * let ret_1: i32 = obj.book(startTime, endTime);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define my-calendar-three%\n (class object%\n (super-new)\n \n (init-field)\n \n ; book : exact-integer? exact-integer? -> exact-integer?\n (define/public (book start-time end-time)\n )))\n\n;; Your my-calendar-three% object will be instantiated and called as such:\n;; (define obj (new my-calendar-three%))\n;; (define param_1 (send obj book start-time end-time))"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec my_calendar_three_init_() -> any().\nmy_calendar_three_init_() ->\n .\n\n-spec my_calendar_three_book(StartTime :: integer(), EndTime :: integer()) -> integer().\nmy_calendar_three_book(StartTime, EndTime) ->\n .\n\n\n%% Your functions will be called as such:\n%% my_calendar_three_init_(),\n%% Param_1 = my_calendar_three_book(StartTime, EndTime),\n\n%% my_calendar_three_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule MyCalendarThree do\n @spec init_() :: any\n def init_() do\n \n end\n\n @spec book(start_time :: integer, end_time :: integer) :: integer\n def book(start_time, end_time) do\n \n end\nend\n\n# Your functions will be called as such:\n# MyCalendarThree.init_()\n# param_1 = MyCalendarThree.book(start_time, end_time)\n\n# MyCalendarThree.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["MyCalendarThree","book","book","book","book","book","book"]
[[],[10,20],[50,60],[10,40],[5,15],[5,10],[25,55]] | {
"classname": "MyCalendarThree",
"constructor": {
"params": []
},
"methods": [
{
"name": "book",
"params": [
{
"type": "integer",
"name": "startTime"
},
{
"type": "integer",
"name": "endTime"
}
],
"return": {
"type": "integer"
}
}
],
"systemdesign": true,
"params": [
{
"name": "starts",
"type": "integer[]"
},
{
"name": "ends",
"type": "integer[]"
}
],
"return": {
"type": "list<boolean>",
"dealloc": true
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Binary Search', 'Design', 'Segment Tree', 'Prefix Sum', 'Ordered Set'] |
733 | Flood Fill | flood-fill | <p>You are given an image represented by an <code>m x n</code> grid of integers <code>image</code>, where <code>image[i][j]</code> represents the pixel value of the image. You are also given three integers <code>sr</code>, <code>sc</code>, and <code>color</code>. Your task is to perform a <strong>flood fill</strong> on the image starting from the pixel <code>image[sr][sc]</code>.</p>
<p>To perform a <strong>flood fill</strong>:</p>
<ol>
<li>Begin with the starting pixel and change its color to <code>color</code>.</li>
<li>Perform the same process for each pixel that is <strong>directly adjacent</strong> (pixels that share a side with the original pixel, either horizontally or vertically) and shares the <strong>same color</strong> as the starting pixel.</li>
<li>Keep <strong>repeating</strong> this process by checking neighboring pixels of the <em>updated</em> pixels and modifying their color if it matches the original color of the starting pixel.</li>
<li>The process <strong>stops</strong> when there are <strong>no more</strong> adjacent pixels of the original color to update.</li>
</ol>
<p>Return the <strong>modified</strong> image after performing the flood fill.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<div class="example-block">
<p><strong>Input:</strong> <span class="example-io">image = [[1,1,1],[1,1,0],[1,0,1]], sr = 1, sc = 1, color = 2</span></p>
<p><strong>Output:</strong> <span class="example-io">[[2,2,2],[2,2,0],[2,0,1]]</span></p>
<p><strong>Explanation:</strong></p>
<p><img alt="" src="https://assets.leetcode.com/uploads/2021/06/01/flood1-grid.jpg" style="width: 613px; height: 253px;" /></p>
<p>From the center of the image with position <code>(sr, sc) = (1, 1)</code> (i.e., the red pixel), all pixels connected by a path of the same color as the starting pixel (i.e., the blue pixels) are colored with the new color.</p>
<p>Note the bottom corner is <strong>not</strong> colored 2, because it is not horizontally or vertically connected to the starting pixel.</p>
</div>
<p><strong class="example">Example 2:</strong></p>
<div class="example-block">
<p><strong>Input:</strong> <span class="example-io">image = [[0,0,0],[0,0,0]], sr = 0, sc = 0, color = 0</span></p>
<p><strong>Output:</strong> <span class="example-io">[[0,0,0],[0,0,0]]</span></p>
<p><strong>Explanation:</strong></p>
<p>The starting pixel is already colored with 0, which is the same as the target color. Therefore, no changes are made to the image.</p>
</div>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>m == image.length</code></li>
<li><code>n == image[i].length</code></li>
<li><code>1 <= m, n <= 50</code></li>
<li><code>0 <= image[i][j], color < 2<sup>16</sup></code></li>
<li><code>0 <= sr < m</code></li>
<li><code>0 <= sc < n</code></li>
</ul>
| Easy | 1.1M | 1.7M | 1,116,874 | 1,691,582 | 66.0% | ['island-perimeter'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<vector<int>> floodFill(vector<vector<int>>& image, int sr, int sc, int color) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int[][] floodFill(int[][] image, int sr, int sc, int color) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def floodFill(self, image, sr, sc, color):\n \"\"\"\n :type image: List[List[int]]\n :type sr: int\n :type sc: int\n :type color: int\n :rtype: List[List[int]]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def floodFill(self, image: List[List[int]], sr: int, sc: int, color: int) -> List[List[int]]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Return an array of arrays of size *returnSize.\n * The sizes of the arrays are returned as *returnColumnSizes array.\n * Note: Both returned array and *columnSizes array must be malloced, assume caller calls free().\n */\nint** floodFill(int** image, int imageSize, int* imageColSize, int sr, int sc, int color, int* returnSize, int** returnColumnSizes) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int[][] FloodFill(int[][] image, int sr, int sc, int color) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} image\n * @param {number} sr\n * @param {number} sc\n * @param {number} color\n * @return {number[][]}\n */\nvar floodFill = function(image, sr, sc, color) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function floodFill(image: number[][], sr: number, sc: number, color: number): number[][] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $image\n * @param Integer $sr\n * @param Integer $sc\n * @param Integer $color\n * @return Integer[][]\n */\n function floodFill($image, $sr, $sc, $color) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func floodFill(_ image: [[Int]], _ sr: Int, _ sc: Int, _ color: Int) -> [[Int]] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun floodFill(image: Array<IntArray>, sr: Int, sc: Int, color: Int): Array<IntArray> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<List<int>> floodFill(List<List<int>> image, int sr, int sc, int color) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func floodFill(image [][]int, sr int, sc int, color int) [][]int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} image\n# @param {Integer} sr\n# @param {Integer} sc\n# @param {Integer} color\n# @return {Integer[][]}\ndef flood_fill(image, sr, sc, color)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def floodFill(image: Array[Array[Int]], sr: Int, sc: Int, color: Int): Array[Array[Int]] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn flood_fill(image: Vec<Vec<i32>>, sr: i32, sc: i32, color: i32) -> Vec<Vec<i32>> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (flood-fill image sr sc color)\n (-> (listof (listof exact-integer?)) exact-integer? exact-integer? exact-integer? (listof (listof exact-integer?)))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec flood_fill(Image :: [[integer()]], Sr :: integer(), Sc :: integer(), Color :: integer()) -> [[integer()]].\nflood_fill(Image, Sr, Sc, Color) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec flood_fill(image :: [[integer]], sr :: integer, sc :: integer, color :: integer) :: [[integer]]\n def flood_fill(image, sr, sc, color) do\n \n end\nend"}] | [[1,1,1],[1,1,0],[1,0,1]]
1
1
2 | {
"name": "floodFill",
"params": [
{
"name": "image",
"type": "integer[][]"
},
{
"name": "sr",
"type": "integer"
},
{
"name": "sc",
"type": "integer"
},
{
"name": "color",
"type": "integer"
}
],
"return": {
"type": "integer[][]"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Depth-First Search', 'Breadth-First Search', 'Matrix'] |
734 | Sentence Similarity | sentence-similarity | null | Easy | 71.5K | 160.5K | 71,520 | 160,532 | 44.6% | ['number-of-provinces', 'accounts-merge', 'sentence-similarity-ii'] | [] | Algorithms | null | ["great","acting","skills"]
["fine","drama","talent"]
[["great","fine"],["drama","acting"],["skills","talent"]] | {
"name": "areSentencesSimilar",
"params": [
{
"name": "sentence1",
"type": "string[]"
},
{
"name": "sentence2",
"type": "string[]"
},
{
"name": "similarPairs",
"type": "list<list<string>>"
}
],
"return": {
"type": "boolean"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String'] |
735 | Asteroid Collision | asteroid-collision | <p>We are given an array <code>asteroids</code> of integers representing asteroids in a row. The indices of the asteriod in the array represent their relative position in space.</p>
<p>For each asteroid, the absolute value represents its size, and the sign represents its direction (positive meaning right, negative meaning left). Each asteroid moves at the same speed.</p>
<p>Find out the state of the asteroids after all collisions. If two asteroids meet, the smaller one will explode. If both are the same size, both will explode. Two asteroids moving in the same direction will never meet.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> asteroids = [5,10,-5]
<strong>Output:</strong> [5,10]
<strong>Explanation:</strong> The 10 and -5 collide resulting in 10. The 5 and 10 never collide.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> asteroids = [8,-8]
<strong>Output:</strong> []
<strong>Explanation:</strong> The 8 and -8 collide exploding each other.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> asteroids = [10,2,-5]
<strong>Output:</strong> [10]
<strong>Explanation:</strong> The 2 and -5 collide resulting in -5. The 10 and -5 collide resulting in 10.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>2 <= asteroids.length <= 10<sup>4</sup></code></li>
<li><code>-1000 <= asteroids[i] <= 1000</code></li>
<li><code>asteroids[i] != 0</code></li>
</ul>
| Medium | 745.1K | 1.6M | 745,134 | 1,648,264 | 45.2% | ['can-place-flowers', 'destroying-asteroids', 'count-collisions-on-a-road', 'robot-collisions'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<int> asteroidCollision(vector<int>& asteroids) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int[] asteroidCollision(int[] asteroids) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def asteroidCollision(self, asteroids):\n \"\"\"\n :type asteroids: List[int]\n :rtype: List[int]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def asteroidCollision(self, asteroids: List[int]) -> List[int]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nint* asteroidCollision(int* asteroids, int asteroidsSize, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int[] AsteroidCollision(int[] asteroids) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} asteroids\n * @return {number[]}\n */\nvar asteroidCollision = function(asteroids) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function asteroidCollision(asteroids: number[]): number[] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $asteroids\n * @return Integer[]\n */\n function asteroidCollision($asteroids) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func asteroidCollision(_ asteroids: [Int]) -> [Int] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun asteroidCollision(asteroids: IntArray): IntArray {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<int> asteroidCollision(List<int> asteroids) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func asteroidCollision(asteroids []int) []int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} asteroids\n# @return {Integer[]}\ndef asteroid_collision(asteroids)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def asteroidCollision(asteroids: Array[Int]): Array[Int] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn asteroid_collision(asteroids: Vec<i32>) -> Vec<i32> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (asteroid-collision asteroids)\n (-> (listof exact-integer?) (listof exact-integer?))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec asteroid_collision(Asteroids :: [integer()]) -> [integer()].\nasteroid_collision(Asteroids) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec asteroid_collision(asteroids :: [integer]) :: [integer]\n def asteroid_collision(asteroids) do\n \n end\nend"}] | [5,10,-5] | {
"name": "asteroidCollision",
"params": [
{
"name": "asteroids",
"type": "integer[]"
}
],
"return": {
"type": "integer[]"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Stack', 'Simulation'] |
736 | Parse Lisp Expression | parse-lisp-expression | <p>You are given a string expression representing a Lisp-like expression to return the integer value of.</p>
<p>The syntax for these expressions is given as follows.</p>
<ul>
<li>An expression is either an integer, let expression, add expression, mult expression, or an assigned variable. Expressions always evaluate to a single integer.</li>
<li>(An integer could be positive or negative.)</li>
<li>A let expression takes the form <code>"(let v<sub>1</sub> e<sub>1</sub> v<sub>2</sub> e<sub>2</sub> ... v<sub>n</sub> e<sub>n</sub> expr)"</code>, where let is always the string <code>"let"</code>, then there are one or more pairs of alternating variables and expressions, meaning that the first variable <code>v<sub>1</sub></code> is assigned the value of the expression <code>e<sub>1</sub></code>, the second variable <code>v<sub>2</sub></code> is assigned the value of the expression <code>e<sub>2</sub></code>, and so on sequentially; and then the value of this let expression is the value of the expression <code>expr</code>.</li>
<li>An add expression takes the form <code>"(add e<sub>1</sub> e<sub>2</sub>)"</code> where add is always the string <code>"add"</code>, there are always two expressions <code>e<sub>1</sub></code>, <code>e<sub>2</sub></code> and the result is the addition of the evaluation of <code>e<sub>1</sub></code> and the evaluation of <code>e<sub>2</sub></code>.</li>
<li>A mult expression takes the form <code>"(mult e<sub>1</sub> e<sub>2</sub>)"</code> where mult is always the string <code>"mult"</code>, there are always two expressions <code>e<sub>1</sub></code>, <code>e<sub>2</sub></code> and the result is the multiplication of the evaluation of e1 and the evaluation of e2.</li>
<li>For this question, we will use a smaller subset of variable names. A variable starts with a lowercase letter, then zero or more lowercase letters or digits. Additionally, for your convenience, the names <code>"add"</code>, <code>"let"</code>, and <code>"mult"</code> are protected and will never be used as variable names.</li>
<li>Finally, there is the concept of scope. When an expression of a variable name is evaluated, within the context of that evaluation, the innermost scope (in terms of parentheses) is checked first for the value of that variable, and then outer scopes are checked sequentially. It is guaranteed that every expression is legal. Please see the examples for more details on the scope.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> expression = "(let x 2 (mult x (let x 3 y 4 (add x y))))"
<strong>Output:</strong> 14
<strong>Explanation:</strong> In the expression (add x y), when checking for the value of the variable x,
we check from the innermost scope to the outermost in the context of the variable we are trying to evaluate.
Since x = 3 is found first, the value of x is 3.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> expression = "(let x 3 x 2 x)"
<strong>Output:</strong> 2
<strong>Explanation:</strong> Assignment in let statements is processed sequentially.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> expression = "(let x 1 y 2 x (add x y) (add x y))"
<strong>Output:</strong> 5
<strong>Explanation:</strong> The first (add x y) evaluates as 3, and is assigned to x.
The second (add x y) evaluates as 3+2 = 5.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= expression.length <= 2000</code></li>
<li>There are no leading or trailing spaces in <code>expression</code>.</li>
<li>All tokens are separated by a single space in <code>expression</code>.</li>
<li>The answer and all intermediate calculations of that answer are guaranteed to fit in a <strong>32-bit</strong> integer.</li>
<li>The expression is guaranteed to be legal and evaluate to an integer.</li>
</ul>
| Hard | 24.5K | 46.7K | 24,457 | 46,679 | 52.4% | ['ternary-expression-parser', 'number-of-atoms', 'basic-calculator-iv'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int evaluate(string expression) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int evaluate(String expression) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def evaluate(self, expression):\n \"\"\"\n :type expression: str\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def evaluate(self, expression: str) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int evaluate(char* expression) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int Evaluate(string expression) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} expression\n * @return {number}\n */\nvar evaluate = function(expression) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function evaluate(expression: string): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $expression\n * @return Integer\n */\n function evaluate($expression) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func evaluate(_ expression: String) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun evaluate(expression: String): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int evaluate(String expression) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func evaluate(expression string) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} expression\n# @return {Integer}\ndef evaluate(expression)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def evaluate(expression: String): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn evaluate(expression: String) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (evaluate expression)\n (-> string? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec evaluate(Expression :: unicode:unicode_binary()) -> integer().\nevaluate(Expression) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec evaluate(expression :: String.t) :: integer\n def evaluate(expression) do\n \n end\nend"}] | "(let x 2 (mult x (let x 3 y 4 (add x y))))" | {
"name": "evaluate",
"params": [
{
"name": "expression",
"type": "string"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Hash Table', 'String', 'Stack', 'Recursion'] |
737 | Sentence Similarity II | sentence-similarity-ii | null | Medium | 75K | 148.4K | 74,995 | 148,361 | 50.5% | ['number-of-provinces', 'accounts-merge', 'sentence-similarity'] | [] | Algorithms | null | ["great","acting","skills"]
["fine","drama","talent"]
[["great","good"],["fine","good"],["drama","acting"],["skills","talent"]] | {
"name": "areSentencesSimilarTwo",
"params": [
{
"name": "sentence1",
"type": "string[]"
},
{
"name": "sentence2",
"type": "string[]"
},
{
"name": "similarPairs",
"type": "list<list<string>>"
}
],
"return": {
"type": "boolean"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String', 'Depth-First Search', 'Breadth-First Search', 'Union Find'] |
738 | Monotone Increasing Digits | monotone-increasing-digits | <p>An integer has <strong>monotone increasing digits</strong> if and only if each pair of adjacent digits <code>x</code> and <code>y</code> satisfy <code>x <= y</code>.</p>
<p>Given an integer <code>n</code>, return <em>the largest number that is less than or equal to </em><code>n</code><em> with <strong>monotone increasing digits</strong></em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> n = 10
<strong>Output:</strong> 9
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> n = 1234
<strong>Output:</strong> 1234
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> n = 332
<strong>Output:</strong> 299
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= n <= 10<sup>9</sup></code></li>
</ul>
| Medium | 60.7K | 125K | 60,705 | 125,050 | 48.5% | ['remove-k-digits'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int monotoneIncreasingDigits(int n) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int monotoneIncreasingDigits(int n) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def monotoneIncreasingDigits(self, n):\n \"\"\"\n :type n: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def monotoneIncreasingDigits(self, n: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int monotoneIncreasingDigits(int n) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int MonotoneIncreasingDigits(int n) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} n\n * @return {number}\n */\nvar monotoneIncreasingDigits = function(n) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function monotoneIncreasingDigits(n: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $n\n * @return Integer\n */\n function monotoneIncreasingDigits($n) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func monotoneIncreasingDigits(_ n: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun monotoneIncreasingDigits(n: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int monotoneIncreasingDigits(int n) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func monotoneIncreasingDigits(n int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} n\n# @return {Integer}\ndef monotone_increasing_digits(n)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def monotoneIncreasingDigits(n: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn monotone_increasing_digits(n: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (monotone-increasing-digits n)\n (-> exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec monotone_increasing_digits(N :: integer()) -> integer().\nmonotone_increasing_digits(N) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec monotone_increasing_digits(n :: integer) :: integer\n def monotone_increasing_digits(n) do\n \n end\nend"}] | 10 | {
"name": "monotoneIncreasingDigits",
"params": [
{
"name": "n",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math', 'Greedy'] |
739 | Daily Temperatures | daily-temperatures | <p>Given an array of integers <code>temperatures</code> represents the daily temperatures, return <em>an array</em> <code>answer</code> <em>such that</em> <code>answer[i]</code> <em>is the number of days you have to wait after the</em> <code>i<sup>th</sup></code> <em>day to get a warmer temperature</em>. If there is no future day for which this is possible, keep <code>answer[i] == 0</code> instead.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre><strong>Input:</strong> temperatures = [73,74,75,71,69,72,76,73]
<strong>Output:</strong> [1,1,4,2,1,1,0,0]
</pre><p><strong class="example">Example 2:</strong></p>
<pre><strong>Input:</strong> temperatures = [30,40,50,60]
<strong>Output:</strong> [1,1,1,0]
</pre><p><strong class="example">Example 3:</strong></p>
<pre><strong>Input:</strong> temperatures = [30,60,90]
<strong>Output:</strong> [1,1,0]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= temperatures.length <= 10<sup>5</sup></code></li>
<li><code>30 <= temperatures[i] <= 100</code></li>
</ul>
| Medium | 1.3M | 1.9M | 1,263,977 | 1,883,609 | 67.1% | ['next-greater-element-i', 'online-stock-span'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<int> dailyTemperatures(vector<int>& temperatures) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int[] dailyTemperatures(int[] temperatures) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def dailyTemperatures(self, temperatures):\n \"\"\"\n :type temperatures: List[int]\n :rtype: List[int]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def dailyTemperatures(self, temperatures: List[int]) -> List[int]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nint* dailyTemperatures(int* temperatures, int temperaturesSize, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int[] DailyTemperatures(int[] temperatures) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} temperatures\n * @return {number[]}\n */\nvar dailyTemperatures = function(temperatures) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function dailyTemperatures(temperatures: number[]): number[] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $temperatures\n * @return Integer[]\n */\n function dailyTemperatures($temperatures) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func dailyTemperatures(_ temperatures: [Int]) -> [Int] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun dailyTemperatures(temperatures: IntArray): IntArray {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<int> dailyTemperatures(List<int> temperatures) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func dailyTemperatures(temperatures []int) []int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} temperatures\n# @return {Integer[]}\ndef daily_temperatures(temperatures)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def dailyTemperatures(temperatures: Array[Int]): Array[Int] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn daily_temperatures(temperatures: Vec<i32>) -> Vec<i32> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (daily-temperatures temperatures)\n (-> (listof exact-integer?) (listof exact-integer?))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec daily_temperatures(Temperatures :: [integer()]) -> [integer()].\ndaily_temperatures(Temperatures) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec daily_temperatures(temperatures :: [integer]) :: [integer]\n def daily_temperatures(temperatures) do\n \n end\nend"}] | [73,74,75,71,69,72,76,73] | {
"name": "dailyTemperatures",
"params": [
{
"name": "temperatures",
"type": "integer[]"
}
],
"return": {
"type": "integer[]"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Stack', 'Monotonic Stack'] |
740 | Delete and Earn | delete-and-earn | <p>You are given an integer array <code>nums</code>. You want to maximize the number of points you get by performing the following operation any number of times:</p>
<ul>
<li>Pick any <code>nums[i]</code> and delete it to earn <code>nums[i]</code> points. Afterwards, you must delete <b>every</b> element equal to <code>nums[i] - 1</code> and <strong>every</strong> element equal to <code>nums[i] + 1</code>.</li>
</ul>
<p>Return <em>the <strong>maximum number of points</strong> you can earn by applying the above operation some number of times</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [3,4,2]
<strong>Output:</strong> 6
<strong>Explanation:</strong> You can perform the following operations:
- Delete 4 to earn 4 points. Consequently, 3 is also deleted. nums = [2].
- Delete 2 to earn 2 points. nums = [].
You earn a total of 6 points.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [2,2,3,3,3,4]
<strong>Output:</strong> 9
<strong>Explanation:</strong> You can perform the following operations:
- Delete a 3 to earn 3 points. All 2's and 4's are also deleted. nums = [3,3].
- Delete a 3 again to earn 3 points. nums = [3].
- Delete a 3 once more to earn 3 points. nums = [].
You earn a total of 9 points.</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= nums.length <= 2 * 10<sup>4</sup></code></li>
<li><code>1 <= nums[i] <= 10<sup>4</sup></code></li>
</ul>
| Medium | 391.3K | 690.5K | 391,288 | 690,498 | 56.7% | ['house-robber'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int deleteAndEarn(vector<int>& nums) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int deleteAndEarn(int[] nums) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def deleteAndEarn(self, nums):\n \"\"\"\n :type nums: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def deleteAndEarn(self, nums: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int deleteAndEarn(int* nums, int numsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int DeleteAndEarn(int[] nums) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @return {number}\n */\nvar deleteAndEarn = function(nums) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function deleteAndEarn(nums: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @return Integer\n */\n function deleteAndEarn($nums) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func deleteAndEarn(_ nums: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun deleteAndEarn(nums: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int deleteAndEarn(List<int> nums) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func deleteAndEarn(nums []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @return {Integer}\ndef delete_and_earn(nums)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def deleteAndEarn(nums: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn delete_and_earn(nums: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (delete-and-earn nums)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec delete_and_earn(Nums :: [integer()]) -> integer().\ndelete_and_earn(Nums) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec delete_and_earn(nums :: [integer]) :: integer\n def delete_and_earn(nums) do\n \n end\nend"}] | [3,4,2] | {
"name": "deleteAndEarn",
"params": [
{
"name": "nums",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'Dynamic Programming'] |
741 | Cherry Pickup | cherry-pickup | <p>You are given an <code>n x n</code> <code>grid</code> representing a field of cherries, each cell is one of three possible integers.</p>
<ul>
<li><code>0</code> means the cell is empty, so you can pass through,</li>
<li><code>1</code> means the cell contains a cherry that you can pick up and pass through, or</li>
<li><code>-1</code> means the cell contains a thorn that blocks your way.</li>
</ul>
<p>Return <em>the maximum number of cherries you can collect by following the rules below</em>:</p>
<ul>
<li>Starting at the position <code>(0, 0)</code> and reaching <code>(n - 1, n - 1)</code> by moving right or down through valid path cells (cells with value <code>0</code> or <code>1</code>).</li>
<li>After reaching <code>(n - 1, n - 1)</code>, returning to <code>(0, 0)</code> by moving left or up through valid path cells.</li>
<li>When passing through a path cell containing a cherry, you pick it up, and the cell becomes an empty cell <code>0</code>.</li>
<li>If there is no valid path between <code>(0, 0)</code> and <code>(n - 1, n - 1)</code>, then no cherries can be collected.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/12/14/grid.jpg" style="width: 242px; height: 242px;" />
<pre>
<strong>Input:</strong> grid = [[0,1,-1],[1,0,-1],[1,1,1]]
<strong>Output:</strong> 5
<strong>Explanation:</strong> The player started at (0, 0) and went down, down, right right to reach (2, 2).
4 cherries were picked up during this single trip, and the matrix becomes [[0,1,-1],[0,0,-1],[0,0,0]].
Then, the player went left, up, up, left to return home, picking up one more cherry.
The total number of cherries picked up is 5, and this is the maximum possible.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> grid = [[1,1,-1],[1,-1,1],[-1,1,1]]
<strong>Output:</strong> 0
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>n == grid.length</code></li>
<li><code>n == grid[i].length</code></li>
<li><code>1 <= n <= 50</code></li>
<li><code>grid[i][j]</code> is <code>-1</code>, <code>0</code>, or <code>1</code>.</li>
<li><code>grid[0][0] != -1</code></li>
<li><code>grid[n - 1][n - 1] != -1</code></li>
</ul>
| Hard | 92.3K | 245.1K | 92,302 | 245,052 | 37.7% | ['minimum-path-sum', 'dungeon-game', 'maximum-path-quality-of-a-graph', 'paths-in-matrix-whose-sum-is-divisible-by-k'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int cherryPickup(vector<vector<int>>& grid) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int cherryPickup(int[][] grid) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def cherryPickup(self, grid):\n \"\"\"\n :type grid: List[List[int]]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def cherryPickup(self, grid: List[List[int]]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int cherryPickup(int** grid, int gridSize, int* gridColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int CherryPickup(int[][] grid) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} grid\n * @return {number}\n */\nvar cherryPickup = function(grid) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function cherryPickup(grid: number[][]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $grid\n * @return Integer\n */\n function cherryPickup($grid) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func cherryPickup(_ grid: [[Int]]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun cherryPickup(grid: Array<IntArray>): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int cherryPickup(List<List<int>> grid) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func cherryPickup(grid [][]int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} grid\n# @return {Integer}\ndef cherry_pickup(grid)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def cherryPickup(grid: Array[Array[Int]]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn cherry_pickup(grid: Vec<Vec<i32>>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (cherry-pickup grid)\n (-> (listof (listof exact-integer?)) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec cherry_pickup(Grid :: [[integer()]]) -> integer().\ncherry_pickup(Grid) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec cherry_pickup(grid :: [[integer]]) :: integer\n def cherry_pickup(grid) do\n \n end\nend"}] | [[0,1,-1],[1,0,-1],[1,1,1]] | {
"name": "cherryPickup",
"params": [
{
"name": "grid",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Dynamic Programming', 'Matrix'] |
742 | Closest Leaf in a Binary Tree | closest-leaf-in-a-binary-tree | null | Medium | 51.3K | 109.1K | 51,273 | 109,087 | 47.0% | [] | [] | Algorithms | null | [1,3,2]
1 | {
"name": "findClosestLeaf",
"params": [
{
"name": "root",
"type": "TreeNode"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Tree', 'Depth-First Search', 'Breadth-First Search', 'Binary Tree'] |
743 | Network Delay Time | network-delay-time | <p>You are given a network of <code>n</code> nodes, labeled from <code>1</code> to <code>n</code>. You are also given <code>times</code>, a list of travel times as directed edges <code>times[i] = (u<sub>i</sub>, v<sub>i</sub>, w<sub>i</sub>)</code>, where <code>u<sub>i</sub></code> is the source node, <code>v<sub>i</sub></code> is the target node, and <code>w<sub>i</sub></code> is the time it takes for a signal to travel from source to target.</p>
<p>We will send a signal from a given node <code>k</code>. Return <em>the <strong>minimum</strong> time it takes for all the</em> <code>n</code> <em>nodes to receive the signal</em>. If it is impossible for all the <code>n</code> nodes to receive the signal, return <code>-1</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2019/05/23/931_example_1.png" style="width: 217px; height: 239px;" />
<pre>
<strong>Input:</strong> times = [[2,1,1],[2,3,1],[3,4,1]], n = 4, k = 2
<strong>Output:</strong> 2
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> times = [[1,2,1]], n = 2, k = 1
<strong>Output:</strong> 1
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> times = [[1,2,1]], n = 2, k = 2
<strong>Output:</strong> -1
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= k <= n <= 100</code></li>
<li><code>1 <= times.length <= 6000</code></li>
<li><code>times[i].length == 3</code></li>
<li><code>1 <= u<sub>i</sub>, v<sub>i</sub> <= n</code></li>
<li><code>u<sub>i</sub> != v<sub>i</sub></code></li>
<li><code>0 <= w<sub>i</sub> <= 100</code></li>
<li>All the pairs <code>(u<sub>i</sub>, v<sub>i</sub>)</code> are <strong>unique</strong>. (i.e., no multiple edges.)</li>
</ul>
| Medium | 639.8K | 1.1M | 639,835 | 1,128,060 | 56.7% | ['the-time-when-the-network-becomes-idle', 'second-minimum-time-to-reach-destination'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int networkDelayTime(vector<vector<int>>& times, int n, int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int networkDelayTime(int[][] times, int n, int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def networkDelayTime(self, times, n, k):\n \"\"\"\n :type times: List[List[int]]\n :type n: int\n :type k: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def networkDelayTime(self, times: List[List[int]], n: int, k: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int networkDelayTime(int** times, int timesSize, int* timesColSize, int n, int k){\n\n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int NetworkDelayTime(int[][] times, int n, int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} times\n * @param {number} n\n * @param {number} k\n * @return {number}\n */\nvar networkDelayTime = function(times, n, k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function networkDelayTime(times: number[][], n: number, k: number): number {\n\n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $times\n * @param Integer $n\n * @param Integer $k\n * @return Integer\n */\n function networkDelayTime($times, $n, $k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func networkDelayTime(_ times: [[Int]], _ n: Int, _ k: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun networkDelayTime(times: Array<IntArray>, n: Int, k: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int networkDelayTime(List<List<int>> times, int n, int k) {\n\n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func networkDelayTime(times [][]int, n int, k int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} times\n# @param {Integer} n\n# @param {Integer} k\n# @return {Integer}\ndef network_delay_time(times, n, k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def networkDelayTime(times: Array[Array[Int]], n: Int, k: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn network_delay_time(times: Vec<Vec<i32>>, n: i32, k: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (network-delay-time times n k)\n (-> (listof (listof exact-integer?)) exact-integer? exact-integer? exact-integer?)\n\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec network_delay_time(Times :: [[integer()]], N :: integer(), K :: integer()) -> integer().\nnetwork_delay_time(Times, N, K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec network_delay_time(times :: [[integer]], n :: integer, k :: integer) :: integer\n def network_delay_time(times, n, k) do\n\n end\nend"}] | [[2,1,1],[2,3,1],[3,4,1]]
4
2 | {
"name": "networkDelayTime",
"params": [
{
"name": "times",
"type": "integer[][]"
},
{
"name": "n",
"type": "integer"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "integer"
},
"manual": false
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Depth-First Search', 'Breadth-First Search', 'Graph', 'Heap (Priority Queue)', 'Shortest Path'] |
744 | Find Smallest Letter Greater Than Target | find-smallest-letter-greater-than-target | <p>You are given an array of characters <code>letters</code> that is sorted in <strong>non-decreasing order</strong>, and a character <code>target</code>. There are <strong>at least two different</strong> characters in <code>letters</code>.</p>
<p>Return <em>the smallest character in </em><code>letters</code><em> that is lexicographically greater than </em><code>target</code>. If such a character does not exist, return the first character in <code>letters</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> letters = ["c","f","j"], target = "a"
<strong>Output:</strong> "c"
<strong>Explanation:</strong> The smallest character that is lexicographically greater than 'a' in letters is 'c'.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> letters = ["c","f","j"], target = "c"
<strong>Output:</strong> "f"
<strong>Explanation:</strong> The smallest character that is lexicographically greater than 'c' in letters is 'f'.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> letters = ["x","x","y","y"], target = "z"
<strong>Output:</strong> "x"
<strong>Explanation:</strong> There are no characters in letters that is lexicographically greater than 'z' so we return letters[0].
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>2 <= letters.length <= 10<sup>4</sup></code></li>
<li><code>letters[i]</code> is a lowercase English letter.</li>
<li><code>letters</code> is sorted in <strong>non-decreasing</strong> order.</li>
<li><code>letters</code> contains at least two different characters.</li>
<li><code>target</code> is a lowercase English letter.</li>
</ul>
| Easy | 582K | 1.1M | 581,953 | 1,082,145 | 53.8% | ['count-elements-with-strictly-smaller-and-greater-elements'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n char nextGreatestLetter(vector<char>& letters, char target) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public char nextGreatestLetter(char[] letters, char target) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def nextGreatestLetter(self, letters, target):\n \"\"\"\n :type letters: List[str]\n :type target: str\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def nextGreatestLetter(self, letters: List[str], target: str) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char nextGreatestLetter(char* letters, int lettersSize, char target) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public char NextGreatestLetter(char[] letters, char target) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {character[]} letters\n * @param {character} target\n * @return {character}\n */\nvar nextGreatestLetter = function(letters, target) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function nextGreatestLetter(letters: string[], target: string): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String[] $letters\n * @param String $target\n * @return String\n */\n function nextGreatestLetter($letters, $target) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func nextGreatestLetter(_ letters: [Character], _ target: Character) -> Character {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun nextGreatestLetter(letters: CharArray, target: Char): Char {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String nextGreatestLetter(List<String> letters, String target) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func nextGreatestLetter(letters []byte, target byte) byte {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Character[]} letters\n# @param {Character} target\n# @return {Character}\ndef next_greatest_letter(letters, target)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def nextGreatestLetter(letters: Array[Char], target: Char): Char = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn next_greatest_letter(letters: Vec<char>, target: char) -> char {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (next-greatest-letter letters target)\n (-> (listof char?) char? char?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec next_greatest_letter(Letters :: [char()], Target :: char()) -> char().\nnext_greatest_letter(Letters, Target) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec next_greatest_letter(letters :: [char], target :: char) :: char\n def next_greatest_letter(letters, target) do\n \n end\nend"}] | ["c","f","j"]
"a" | {
"name": "nextGreatestLetter",
"params": [
{
"name": "letters",
"type": "character[]"
},
{
"name": "target",
"type": "character"
}
],
"return": {
"type": "character"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Binary Search'] |
745 | Prefix and Suffix Search | prefix-and-suffix-search | <p>Design a special dictionary that searches the words in it by a prefix and a suffix.</p>
<p>Implement the <code>WordFilter</code> class:</p>
<ul>
<li><code>WordFilter(string[] words)</code> Initializes the object with the <code>words</code> in the dictionary.</li>
<li><code>f(string pref, string suff)</code> Returns <em>the index of the word in the dictionary,</em> which has the prefix <code>pref</code> and the suffix <code>suff</code>. If there is more than one valid index, return <strong>the largest</strong> of them. If there is no such word in the dictionary, return <code>-1</code>.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input</strong>
["WordFilter", "f"]
[[["apple"]], ["a", "e"]]
<strong>Output</strong>
[null, 0]
<strong>Explanation</strong>
WordFilter wordFilter = new WordFilter(["apple"]);
wordFilter.f("a", "e"); // return 0, because the word at index 0 has prefix = "a" and suffix = "e".
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= words.length <= 10<sup>4</sup></code></li>
<li><code>1 <= words[i].length <= 7</code></li>
<li><code>1 <= pref.length, suff.length <= 7</code></li>
<li><code>words[i]</code>, <code>pref</code> and <code>suff</code> consist of lowercase English letters only.</li>
<li>At most <code>10<sup>4</sup></code> calls will be made to the function <code>f</code>.</li>
</ul>
| Hard | 103.1K | 250K | 103,069 | 249,973 | 41.2% | ['design-add-and-search-words-data-structure'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class WordFilter {\npublic:\n WordFilter(vector<string>& words) {\n \n }\n \n int f(string pref, string suff) {\n \n }\n};\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * WordFilter* obj = new WordFilter(words);\n * int param_1 = obj->f(pref,suff);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class WordFilter {\n\n public WordFilter(String[] words) {\n \n }\n \n public int f(String pref, String suff) {\n \n }\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * WordFilter obj = new WordFilter(words);\n * int param_1 = obj.f(pref,suff);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class WordFilter(object):\n\n def __init__(self, words):\n \"\"\"\n :type words: List[str]\n \"\"\"\n \n\n def f(self, pref, suff):\n \"\"\"\n :type pref: str\n :type suff: str\n :rtype: int\n \"\"\"\n \n\n\n# Your WordFilter object will be instantiated and called as such:\n# obj = WordFilter(words)\n# param_1 = obj.f(pref,suff)"}, {"value": "python3", "text": "Python3", "defaultCode": "class WordFilter:\n\n def __init__(self, words: List[str]):\n \n\n def f(self, pref: str, suff: str) -> int:\n \n\n\n# Your WordFilter object will be instantiated and called as such:\n# obj = WordFilter(words)\n# param_1 = obj.f(pref,suff)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n \n} WordFilter;\n\n\nWordFilter* wordFilterCreate(char** words, int wordsSize) {\n \n}\n\nint wordFilterF(WordFilter* obj, char* pref, char* suff) {\n \n}\n\nvoid wordFilterFree(WordFilter* obj) {\n \n}\n\n/**\n * Your WordFilter struct will be instantiated and called as such:\n * WordFilter* obj = wordFilterCreate(words, wordsSize);\n * int param_1 = wordFilterF(obj, pref, suff);\n \n * wordFilterFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class WordFilter {\n\n public WordFilter(string[] words) {\n \n }\n \n public int F(string pref, string suff) {\n \n }\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * WordFilter obj = new WordFilter(words);\n * int param_1 = obj.F(pref,suff);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string[]} words\n */\nvar WordFilter = function(words) {\n \n};\n\n/** \n * @param {string} pref \n * @param {string} suff\n * @return {number}\n */\nWordFilter.prototype.f = function(pref, suff) {\n \n};\n\n/** \n * Your WordFilter object will be instantiated and called as such:\n * var obj = new WordFilter(words)\n * var param_1 = obj.f(pref,suff)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class WordFilter {\n constructor(words: string[]) {\n \n }\n\n f(pref: string, suff: string): number {\n \n }\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * var obj = new WordFilter(words)\n * var param_1 = obj.f(pref,suff)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class WordFilter {\n /**\n * @param String[] $words\n */\n function __construct($words) {\n \n }\n \n /**\n * @param String $pref\n * @param String $suff\n * @return Integer\n */\n function f($pref, $suff) {\n \n }\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * $obj = WordFilter($words);\n * $ret_1 = $obj->f($pref, $suff);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass WordFilter {\n\n init(_ words: [String]) {\n \n }\n \n func f(_ pref: String, _ suff: String) -> Int {\n \n }\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * let obj = WordFilter(words)\n * let ret_1: Int = obj.f(pref, suff)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class WordFilter(words: Array<String>) {\n\n fun f(pref: String, suff: String): Int {\n \n }\n\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * var obj = WordFilter(words)\n * var param_1 = obj.f(pref,suff)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class WordFilter {\n\n WordFilter(List<String> words) {\n \n }\n \n int f(String pref, String suff) {\n \n }\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * WordFilter obj = WordFilter(words);\n * int param1 = obj.f(pref,suff);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type WordFilter struct {\n \n}\n\n\nfunc Constructor(words []string) WordFilter {\n \n}\n\n\nfunc (this *WordFilter) F(pref string, suff string) int {\n \n}\n\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * obj := Constructor(words);\n * param_1 := obj.F(pref,suff);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class WordFilter\n\n=begin\n :type words: String[]\n=end\n def initialize(words)\n \n end\n\n\n=begin\n :type pref: String\n :type suff: String\n :rtype: Integer\n=end\n def f(pref, suff)\n \n end\n\n\nend\n\n# Your WordFilter object will be instantiated and called as such:\n# obj = WordFilter.new(words)\n# param_1 = obj.f(pref, suff)"}, {"value": "scala", "text": "Scala", "defaultCode": "class WordFilter(_words: Array[String]) {\n\n def f(pref: String, suff: String): Int = {\n \n }\n\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * val obj = new WordFilter(words)\n * val param_1 = obj.f(pref,suff)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct WordFilter {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl WordFilter {\n\n fn new(words: Vec<String>) -> Self {\n \n }\n \n fn f(&self, pref: String, suff: String) -> i32 {\n \n }\n}\n\n/**\n * Your WordFilter object will be instantiated and called as such:\n * let obj = WordFilter::new(words);\n * let ret_1: i32 = obj.f(pref, suff);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define word-filter%\n (class object%\n (super-new)\n \n ; words : (listof string?)\n (init-field\n words)\n \n ; f : string? string? -> exact-integer?\n (define/public (f pref suff)\n )))\n\n;; Your word-filter% object will be instantiated and called as such:\n;; (define obj (new word-filter% [words words]))\n;; (define param_1 (send obj f pref suff))"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec word_filter_init_(Words :: [unicode:unicode_binary()]) -> any().\nword_filter_init_(Words) ->\n .\n\n-spec word_filter_f(Pref :: unicode:unicode_binary(), Suff :: unicode:unicode_binary()) -> integer().\nword_filter_f(Pref, Suff) ->\n .\n\n\n%% Your functions will be called as such:\n%% word_filter_init_(Words),\n%% Param_1 = word_filter_f(Pref, Suff),\n\n%% word_filter_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule WordFilter do\n @spec init_(words :: [String.t]) :: any\n def init_(words) do\n \n end\n\n @spec f(pref :: String.t, suff :: String.t) :: integer\n def f(pref, suff) do\n \n end\nend\n\n# Your functions will be called as such:\n# WordFilter.init_(words)\n# param_1 = WordFilter.f(pref, suff)\n\n# WordFilter.init_ will be called before every test case, in which you can do some necessary initializations."}] | ["WordFilter","f"]
[[["apple"]],["a","e"]] | {
"classname": "WordFilter",
"constructor": {
"params": [
{
"type": "string[]",
"name": "words"
}
]
},
"methods": [
{
"name": "f",
"params": [
{
"type": "string",
"name": "pref"
},
{
"type": "string",
"name": "suff"
}
],
"return": {
"type": "integer"
}
}
],
"systemdesign": true,
"params": [
{
"name": "inputs",
"type": "integer[]"
},
{
"name": "inputs",
"type": "integer[]"
}
],
"return": {
"type": "list<String>",
"dealloc": true
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String', 'Design', 'Trie'] |
746 | Min Cost Climbing Stairs | min-cost-climbing-stairs | <p>You are given an integer array <code>cost</code> where <code>cost[i]</code> is the cost of <code>i<sup>th</sup></code> step on a staircase. Once you pay the cost, you can either climb one or two steps.</p>
<p>You can either start from the step with index <code>0</code>, or the step with index <code>1</code>.</p>
<p>Return <em>the minimum cost to reach the top of the floor</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> cost = [10,<u>15</u>,20]
<strong>Output:</strong> 15
<strong>Explanation:</strong> You will start at index 1.
- Pay 15 and climb two steps to reach the top.
The total cost is 15.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> cost = [<u>1</u>,100,<u>1</u>,1,<u>1</u>,100,<u>1</u>,<u>1</u>,100,<u>1</u>]
<strong>Output:</strong> 6
<strong>Explanation:</strong> You will start at index 0.
- Pay 1 and climb two steps to reach index 2.
- Pay 1 and climb two steps to reach index 4.
- Pay 1 and climb two steps to reach index 6.
- Pay 1 and climb one step to reach index 7.
- Pay 1 and climb two steps to reach index 9.
- Pay 1 and climb one step to reach the top.
The total cost is 6.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>2 <= cost.length <= 1000</code></li>
<li><code>0 <= cost[i] <= 999</code></li>
</ul>
| Easy | 1.4M | 2.2M | 1,441,694 | 2,153,636 | 66.9% | ['climbing-stairs', 'find-number-of-ways-to-reach-the-k-th-stair'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int minCostClimbingStairs(vector<int>& cost) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int minCostClimbingStairs(int[] cost) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def minCostClimbingStairs(self, cost):\n \"\"\"\n :type cost: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def minCostClimbingStairs(self, cost: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int minCostClimbingStairs(int* cost, int costSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int MinCostClimbingStairs(int[] cost) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} cost\n * @return {number}\n */\nvar minCostClimbingStairs = function(cost) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function minCostClimbingStairs(cost: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $cost\n * @return Integer\n */\n function minCostClimbingStairs($cost) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func minCostClimbingStairs(_ cost: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun minCostClimbingStairs(cost: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int minCostClimbingStairs(List<int> cost) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func minCostClimbingStairs(cost []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} cost\n# @return {Integer}\ndef min_cost_climbing_stairs(cost)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def minCostClimbingStairs(cost: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn min_cost_climbing_stairs(cost: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (min-cost-climbing-stairs cost)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec min_cost_climbing_stairs(Cost :: [integer()]) -> integer().\nmin_cost_climbing_stairs(Cost) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec min_cost_climbing_stairs(cost :: [integer]) :: integer\n def min_cost_climbing_stairs(cost) do\n \n end\nend"}] | [10,15,20] | {
"name": "minCostClimbingStairs",
"params": [
{
"name": "cost",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Dynamic Programming'] |
747 | Largest Number At Least Twice of Others | largest-number-at-least-twice-of-others | <p>You are given an integer array <code>nums</code> where the largest integer is <strong>unique</strong>.</p>
<p>Determine whether the largest element in the array is <strong>at least twice</strong> as much as every other number in the array. If it is, return <em>the <strong>index</strong> of the largest element, or return </em><code>-1</code><em> otherwise</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [3,6,1,0]
<strong>Output:</strong> 1
<strong>Explanation:</strong> 6 is the largest integer.
For every other number in the array x, 6 is at least twice as big as x.
The index of value 6 is 1, so we return 1.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,2,3,4]
<strong>Output:</strong> -1
<strong>Explanation:</strong> 4 is less than twice the value of 3, so we return -1.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>2 <= nums.length <= 50</code></li>
<li><code>0 <= nums[i] <= 100</code></li>
<li>The largest element in <code>nums</code> is unique.</li>
</ul>
| Easy | 289.1K | 572.4K | 289,073 | 572,446 | 50.5% | ['keep-multiplying-found-values-by-two', 'largest-number-after-digit-swaps-by-parity'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int dominantIndex(vector<int>& nums) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int dominantIndex(int[] nums) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def dominantIndex(self, nums):\n \"\"\"\n :type nums: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def dominantIndex(self, nums: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int dominantIndex(int* nums, int numsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int DominantIndex(int[] nums) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @return {number}\n */\nvar dominantIndex = function(nums) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function dominantIndex(nums: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @return Integer\n */\n function dominantIndex($nums) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func dominantIndex(_ nums: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun dominantIndex(nums: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int dominantIndex(List<int> nums) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func dominantIndex(nums []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @return {Integer}\ndef dominant_index(nums)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def dominantIndex(nums: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn dominant_index(nums: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (dominant-index nums)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec dominant_index(Nums :: [integer()]) -> integer().\ndominant_index(Nums) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec dominant_index(nums :: [integer]) :: integer\n def dominant_index(nums) do\n \n end\nend"}] | [3,6,1,0] | {
"name": "dominantIndex",
"params": [
{
"name": "nums",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Sorting'] |
748 | Shortest Completing Word | shortest-completing-word | <p>Given a string <code>licensePlate</code> and an array of strings <code>words</code>, find the <strong>shortest completing</strong> word in <code>words</code>.</p>
<p>A <strong>completing</strong> word is a word that <strong>contains all the letters</strong> in <code>licensePlate</code>. <strong>Ignore numbers and spaces</strong> in <code>licensePlate</code>, and treat letters as <strong>case insensitive</strong>. If a letter appears more than once in <code>licensePlate</code>, then it must appear in the word the same number of times or more.</p>
<p>For example, if <code>licensePlate</code><code> = "aBc 12c"</code>, then it contains letters <code>'a'</code>, <code>'b'</code> (ignoring case), and <code>'c'</code> twice. Possible <strong>completing</strong> words are <code>"abccdef"</code>, <code>"caaacab"</code>, and <code>"cbca"</code>.</p>
<p>Return <em>the shortest <strong>completing</strong> word in </em><code>words</code><em>.</em> It is guaranteed an answer exists. If there are multiple shortest <strong>completing</strong> words, return the <strong>first</strong> one that occurs in <code>words</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> licensePlate = "1s3 PSt", words = ["step","steps","stripe","stepple"]
<strong>Output:</strong> "steps"
<strong>Explanation:</strong> licensePlate contains letters 's', 'p', 's' (ignoring case), and 't'.
"step" contains 't' and 'p', but only contains 1 's'.
"steps" contains 't', 'p', and both 's' characters.
"stripe" is missing an 's'.
"stepple" is missing an 's'.
Since "steps" is the only word containing all the letters, that is the answer.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> licensePlate = "1s3 456", words = ["looks","pest","stew","show"]
<strong>Output:</strong> "pest"
<strong>Explanation:</strong> licensePlate only contains the letter 's'. All the words contain 's', but among these "pest", "stew", and "show" are shortest. The answer is "pest" because it is the word that appears earliest of the 3.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= licensePlate.length <= 7</code></li>
<li><code>licensePlate</code> contains digits, letters (uppercase or lowercase), or space <code>' '</code>.</li>
<li><code>1 <= words.length <= 1000</code></li>
<li><code>1 <= words[i].length <= 15</code></li>
<li><code>words[i]</code> consists of lower case English letters.</li>
</ul>
| Easy | 91.2K | 149.2K | 91,189 | 149,241 | 61.1% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n string shortestCompletingWord(string licensePlate, vector<string>& words) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public String shortestCompletingWord(String licensePlate, String[] words) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def shortestCompletingWord(self, licensePlate, words):\n \"\"\"\n :type licensePlate: str\n :type words: List[str]\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def shortestCompletingWord(self, licensePlate: str, words: List[str]) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char* shortestCompletingWord(char* licensePlate, char** words, int wordsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public string ShortestCompletingWord(string licensePlate, string[] words) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} licensePlate\n * @param {string[]} words\n * @return {string}\n */\nvar shortestCompletingWord = function(licensePlate, words) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function shortestCompletingWord(licensePlate: string, words: string[]): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $licensePlate\n * @param String[] $words\n * @return String\n */\n function shortestCompletingWord($licensePlate, $words) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func shortestCompletingWord(_ licensePlate: String, _ words: [String]) -> String {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun shortestCompletingWord(licensePlate: String, words: Array<String>): String {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String shortestCompletingWord(String licensePlate, List<String> words) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func shortestCompletingWord(licensePlate string, words []string) string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} license_plate\n# @param {String[]} words\n# @return {String}\ndef shortest_completing_word(license_plate, words)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def shortestCompletingWord(licensePlate: String, words: Array[String]): String = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn shortest_completing_word(license_plate: String, words: Vec<String>) -> String {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (shortest-completing-word licensePlate words)\n (-> string? (listof string?) string?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec shortest_completing_word(LicensePlate :: unicode:unicode_binary(), Words :: [unicode:unicode_binary()]) -> unicode:unicode_binary().\nshortest_completing_word(LicensePlate, Words) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec shortest_completing_word(license_plate :: String.t, words :: [String.t]) :: String.t\n def shortest_completing_word(license_plate, words) do\n \n end\nend"}] | "1s3 PSt"
["step","steps","stripe","stepple"] | {
"name": "shortestCompletingWord",
"params": [
{
"name": "licensePlate",
"type": "string"
},
{
"name": "words",
"type": "string[]"
}
],
"return": {
"type": "string"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String'] |
749 | Contain Virus | contain-virus | <p>A virus is spreading rapidly, and your task is to quarantine the infected area by installing walls.</p>
<p>The world is modeled as an <code>m x n</code> binary grid <code>isInfected</code>, where <code>isInfected[i][j] == 0</code> represents uninfected cells, and <code>isInfected[i][j] == 1</code> represents cells contaminated with the virus. A wall (and only one wall) can be installed between any two <strong>4-directionally</strong> adjacent cells, on the shared boundary.</p>
<p>Every night, the virus spreads to all neighboring cells in all four directions unless blocked by a wall. Resources are limited. Each day, you can install walls around only one region (i.e., the affected area (continuous block of infected cells) that threatens the most uninfected cells the following night). There <strong>will never be a tie</strong>.</p>
<p>Return <em>the number of walls used to quarantine all the infected regions</em>. If the world will become fully infected, return the number of walls used.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/01/virus11-grid.jpg" style="width: 500px; height: 255px;" />
<pre>
<strong>Input:</strong> isInfected = [[0,1,0,0,0,0,0,1],[0,1,0,0,0,0,0,1],[0,0,0,0,0,0,0,1],[0,0,0,0,0,0,0,0]]
<strong>Output:</strong> 10
<strong>Explanation:</strong> There are 2 contaminated regions.
On the first day, add 5 walls to quarantine the viral region on the left. The board after the virus spreads is:
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/01/virus12edited-grid.jpg" style="width: 500px; height: 257px;" />
On the second day, add 5 walls to quarantine the viral region on the right. The virus is fully contained.
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/01/virus13edited-grid.jpg" style="width: 500px; height: 261px;" />
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/01/virus2-grid.jpg" style="width: 653px; height: 253px;" />
<pre>
<strong>Input:</strong> isInfected = [[1,1,1],[1,0,1],[1,1,1]]
<strong>Output:</strong> 4
<strong>Explanation:</strong> Even though there is only one cell saved, there are 4 walls built.
Notice that walls are only built on the shared boundary of two different cells.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> isInfected = [[1,1,1,0,0,0,0,0,0],[1,0,1,0,1,1,1,1,1],[1,1,1,0,0,0,0,0,0]]
<strong>Output:</strong> 13
<strong>Explanation:</strong> The region on the left only builds two new walls.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>m == isInfected.length</code></li>
<li><code>n == isInfected[i].length</code></li>
<li><code>1 <= m, n <= 50</code></li>
<li><code>isInfected[i][j]</code> is either <code>0</code> or <code>1</code>.</li>
<li>There is always a contiguous viral region throughout the described process that will <strong>infect strictly more uncontaminated squares</strong> in the next round.</li>
</ul>
| Hard | 15K | 28.7K | 15,008 | 28,694 | 52.3% | ['count-the-number-of-infection-sequences'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int containVirus(vector<vector<int>>& isInfected) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int containVirus(int[][] isInfected) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def containVirus(self, isInfected):\n \"\"\"\n :type isInfected: List[List[int]]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def containVirus(self, isInfected: List[List[int]]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int containVirus(int** isInfected, int isInfectedSize, int* isInfectedColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int ContainVirus(int[][] isInfected) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} isInfected\n * @return {number}\n */\nvar containVirus = function(isInfected) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function containVirus(isInfected: number[][]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $isInfected\n * @return Integer\n */\n function containVirus($isInfected) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func containVirus(_ isInfected: [[Int]]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun containVirus(isInfected: Array<IntArray>): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int containVirus(List<List<int>> isInfected) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func containVirus(isInfected [][]int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} is_infected\n# @return {Integer}\ndef contain_virus(is_infected)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def containVirus(isInfected: Array[Array[Int]]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn contain_virus(is_infected: Vec<Vec<i32>>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (contain-virus isInfected)\n (-> (listof (listof exact-integer?)) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec contain_virus(IsInfected :: [[integer()]]) -> integer().\ncontain_virus(IsInfected) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec contain_virus(is_infected :: [[integer]]) :: integer\n def contain_virus(is_infected) do\n \n end\nend"}] | [[0,1,0,0,0,0,0,1],[0,1,0,0,0,0,0,1],[0,0,0,0,0,0,0,1],[0,0,0,0,0,0,0,0]] | {
"name": "containVirus",
"params": [
{
"name": "isInfected",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Depth-First Search', 'Breadth-First Search', 'Matrix', 'Simulation'] |
750 | Number Of Corner Rectangles | number-of-corner-rectangles | null | Medium | 39.7K | 58.6K | 39,710 | 58,573 | 67.8% | [] | [] | Algorithms | null | [[1,0,0,1,0],[0,0,1,0,1],[0,0,0,1,0],[1,0,1,0,1]] | {
"name": "countCornerRectangles",
"params": [
{
"name": "grid",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Math', 'Dynamic Programming', 'Matrix'] |
751 | IP to CIDR | ip-to-cidr | null | Medium | 28.3K | 51.1K | 28,300 | 51,139 | 55.3% | ['restore-ip-addresses', 'validate-ip-address'] | [] | Algorithms | null | "255.0.0.7"
10 | {
"name": "ipToCIDR",
"params": [
{
"name": "ip",
"type": "string"
},
{
"name": "n",
"type": "integer"
}
],
"return": {
"type": "list<string>"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['String', 'Bit Manipulation'] |
752 | Open the Lock | open-the-lock | <p>You have a lock in front of you with 4 circular wheels. Each wheel has 10 slots: <code>'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'</code>. The wheels can rotate freely and wrap around: for example we can turn <code>'9'</code> to be <code>'0'</code>, or <code>'0'</code> to be <code>'9'</code>. Each move consists of turning one wheel one slot.</p>
<p>The lock initially starts at <code>'0000'</code>, a string representing the state of the 4 wheels.</p>
<p>You are given a list of <code>deadends</code> dead ends, meaning if the lock displays any of these codes, the wheels of the lock will stop turning and you will be unable to open it.</p>
<p>Given a <code>target</code> representing the value of the wheels that will unlock the lock, return the minimum total number of turns required to open the lock, or -1 if it is impossible.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> deadends = ["0201","0101","0102","1212","2002"], target = "0202"
<strong>Output:</strong> 6
<strong>Explanation:</strong>
A sequence of valid moves would be "0000" -> "1000" -> "1100" -> "1200" -> "1201" -> "1202" -> "0202".
Note that a sequence like "0000" -> "0001" -> "0002" -> "0102" -> "0202" would be invalid,
because the wheels of the lock become stuck after the display becomes the dead end "0102".
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> deadends = ["8888"], target = "0009"
<strong>Output:</strong> 1
<strong>Explanation:</strong> We can turn the last wheel in reverse to move from "0000" -> "0009".
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> deadends = ["8887","8889","8878","8898","8788","8988","7888","9888"], target = "8888"
<strong>Output:</strong> -1
<strong>Explanation:</strong> We cannot reach the target without getting stuck.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= deadends.length <= 500</code></li>
<li><code>deadends[i].length == 4</code></li>
<li><code>target.length == 4</code></li>
<li>target <strong>will not be</strong> in the list <code>deadends</code>.</li>
<li><code>target</code> and <code>deadends[i]</code> consist of digits only.</li>
</ul>
| Medium | 353K | 582.2K | 353,022 | 582,205 | 60.6% | ['reachable-nodes-with-restrictions'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int openLock(vector<string>& deadends, string target) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int openLock(String[] deadends, String target) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def openLock(self, deadends, target):\n \"\"\"\n :type deadends: List[str]\n :type target: str\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def openLock(self, deadends: List[str], target: str) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int openLock(char** deadends, int deadendsSize, char* target) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int OpenLock(string[] deadends, string target) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string[]} deadends\n * @param {string} target\n * @return {number}\n */\nvar openLock = function(deadends, target) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function openLock(deadends: string[], target: string): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String[] $deadends\n * @param String $target\n * @return Integer\n */\n function openLock($deadends, $target) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func openLock(_ deadends: [String], _ target: String) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun openLock(deadends: Array<String>, target: String): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int openLock(List<String> deadends, String target) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func openLock(deadends []string, target string) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String[]} deadends\n# @param {String} target\n# @return {Integer}\ndef open_lock(deadends, target)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def openLock(deadends: Array[String], target: String): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn open_lock(deadends: Vec<String>, target: String) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (open-lock deadends target)\n (-> (listof string?) string? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec open_lock(Deadends :: [unicode:unicode_binary()], Target :: unicode:unicode_binary()) -> integer().\nopen_lock(Deadends, Target) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec open_lock(deadends :: [String.t], target :: String.t) :: integer\n def open_lock(deadends, target) do\n \n end\nend"}] | ["0201","0101","0102","1212","2002"]
"0202" | {
"name": "openLock",
"params": [
{
"name": "deadends",
"type": "string[]"
},
{
"name": "target",
"type": "string"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String', 'Breadth-First Search'] |
753 | Cracking the Safe | cracking-the-safe | <p>There is a safe protected by a password. The password is a sequence of <code>n</code> digits where each digit can be in the range <code>[0, k - 1]</code>.</p>
<p>The safe has a peculiar way of checking the password. When you enter in a sequence, it checks the <strong>most recent </strong><code>n</code><strong> digits</strong> that were entered each time you type a digit.</p>
<ul>
<li>For example, the correct password is <code>"345"</code> and you enter in <code>"012345"</code>:
<ul>
<li>After typing <code>0</code>, the most recent <code>3</code> digits is <code>"0"</code>, which is incorrect.</li>
<li>After typing <code>1</code>, the most recent <code>3</code> digits is <code>"01"</code>, which is incorrect.</li>
<li>After typing <code>2</code>, the most recent <code>3</code> digits is <code>"012"</code>, which is incorrect.</li>
<li>After typing <code>3</code>, the most recent <code>3</code> digits is <code>"123"</code>, which is incorrect.</li>
<li>After typing <code>4</code>, the most recent <code>3</code> digits is <code>"234"</code>, which is incorrect.</li>
<li>After typing <code>5</code>, the most recent <code>3</code> digits is <code>"345"</code>, which is correct and the safe unlocks.</li>
</ul>
</li>
</ul>
<p>Return <em>any string of <strong>minimum length</strong> that will unlock the safe <strong>at some point</strong> of entering it</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> n = 1, k = 2
<strong>Output:</strong> "10"
<strong>Explanation:</strong> The password is a single digit, so enter each digit. "01" would also unlock the safe.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> n = 2, k = 2
<strong>Output:</strong> "01100"
<strong>Explanation:</strong> For each possible password:
- "00" is typed in starting from the 4<sup>th</sup> digit.
- "01" is typed in starting from the 1<sup>st</sup> digit.
- "10" is typed in starting from the 3<sup>rd</sup> digit.
- "11" is typed in starting from the 2<sup>nd</sup> digit.
Thus "01100" will unlock the safe. "10011", and "11001" would also unlock the safe.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= n <= 4</code></li>
<li><code>1 <= k <= 10</code></li>
<li><code>1 <= k<sup>n</sup> <= 4096</code></li>
</ul>
| Hard | 64.5K | 111.9K | 64,496 | 111,901 | 57.6% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n string crackSafe(int n, int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public String crackSafe(int n, int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def crackSafe(self, n, k):\n \"\"\"\n :type n: int\n :type k: int\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def crackSafe(self, n: int, k: int) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char* crackSafe(int n, int k) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public string CrackSafe(int n, int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} n\n * @param {number} k\n * @return {string}\n */\nvar crackSafe = function(n, k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function crackSafe(n: number, k: number): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $n\n * @param Integer $k\n * @return String\n */\n function crackSafe($n, $k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func crackSafe(_ n: Int, _ k: Int) -> String {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun crackSafe(n: Int, k: Int): String {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String crackSafe(int n, int k) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func crackSafe(n int, k int) string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} n\n# @param {Integer} k\n# @return {String}\ndef crack_safe(n, k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def crackSafe(n: Int, k: Int): String = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn crack_safe(n: i32, k: i32) -> String {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (crack-safe n k)\n (-> exact-integer? exact-integer? string?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec crack_safe(N :: integer(), K :: integer()) -> unicode:unicode_binary().\ncrack_safe(N, K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec crack_safe(n :: integer, k :: integer) :: String.t\n def crack_safe(n, k) do\n \n end\nend"}] | 1
2 | {
"name": "crackSafe",
"params": [
{
"name": "n",
"type": "integer"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "string"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Depth-First Search', 'Graph', 'Eulerian Circuit'] |
754 | Reach a Number | reach-a-number | <p>You are standing at position <code>0</code> on an infinite number line. There is a destination at position <code>target</code>.</p>
<p>You can make some number of moves <code>numMoves</code> so that:</p>
<ul>
<li>On each move, you can either go left or right.</li>
<li>During the <code>i<sup>th</sup></code> move (starting from <code>i == 1</code> to <code>i == numMoves</code>), you take <code>i</code> steps in the chosen direction.</li>
</ul>
<p>Given the integer <code>target</code>, return <em>the <strong>minimum</strong> number of moves required (i.e., the minimum </em><code>numMoves</code><em>) to reach the destination</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> target = 2
<strong>Output:</strong> 3
<strong>Explanation:</strong>
On the 1<sup>st</sup> move, we step from 0 to 1 (1 step).
On the 2<sup>nd</sup> move, we step from 1 to -1 (2 steps).
On the 3<sup>rd</sup> move, we step from -1 to 2 (3 steps).
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> target = 3
<strong>Output:</strong> 2
<strong>Explanation:</strong>
On the 1<sup>st</sup> move, we step from 0 to 1 (1 step).
On the 2<sup>nd</sup> move, we step from 1 to 3 (2 steps).
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>-10<sup>9</sup> <= target <= 10<sup>9</sup></code></li>
<li><code>target != 0</code></li>
</ul>
| Medium | 61.7K | 141K | 61,675 | 140,963 | 43.8% | ['number-of-ways-to-reach-a-position-after-exactly-k-steps'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int reachNumber(int target) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int reachNumber(int target) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def reachNumber(self, target):\n \"\"\"\n :type target: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def reachNumber(self, target: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int reachNumber(int target) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int ReachNumber(int target) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} target\n * @return {number}\n */\nvar reachNumber = function(target) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function reachNumber(target: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $target\n * @return Integer\n */\n function reachNumber($target) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func reachNumber(_ target: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun reachNumber(target: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int reachNumber(int target) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func reachNumber(target int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} target\n# @return {Integer}\ndef reach_number(target)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def reachNumber(target: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn reach_number(target: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (reach-number target)\n (-> exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec reach_number(Target :: integer()) -> integer().\nreach_number(Target) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec reach_number(target :: integer) :: integer\n def reach_number(target) do\n \n end\nend"}] | 2 | {
"name": "reachNumber",
"params": [
{
"name": "target",
"type": "integer"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math', 'Binary Search'] |
755 | Pour Water | pour-water | null | Medium | 41.9K | 87.8K | 41,876 | 87,800 | 47.7% | ['trapping-rain-water'] | [] | Algorithms | null | [2,1,1,2,1,2,2]
4
3 | {
"name": "pourWater",
"params": [
{
"name": "heights",
"type": "integer[]"
},
{
"name": "volume",
"type": "integer"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "integer[]"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Simulation'] |
756 | Pyramid Transition Matrix | pyramid-transition-matrix | <p>You are stacking blocks to form a pyramid. Each block has a color, which is represented by a single letter. Each row of blocks contains <strong>one less block</strong> than the row beneath it and is centered on top.</p>
<p>To make the pyramid aesthetically pleasing, there are only specific <strong>triangular patterns</strong> that are allowed. A triangular pattern consists of a <strong>single block</strong> stacked on top of <strong>two blocks</strong>. The patterns are given as a list of three-letter strings <code>allowed</code>, where the first two characters of a pattern represent the left and right bottom blocks respectively, and the third character is the top block.</p>
<ul>
<li>For example, <code>"ABC"</code> represents a triangular pattern with a <code>'C'</code> block stacked on top of an <code>'A'</code> (left) and <code>'B'</code> (right) block. Note that this is different from <code>"BAC"</code> where <code>'B'</code> is on the left bottom and <code>'A'</code> is on the right bottom.</li>
</ul>
<p>You start with a bottom row of blocks <code>bottom</code>, given as a single string, that you <strong>must</strong> use as the base of the pyramid.</p>
<p>Given <code>bottom</code> and <code>allowed</code>, return <code>true</code><em> if you can build the pyramid all the way to the top such that <strong>every triangular pattern</strong> in the pyramid is in </em><code>allowed</code><em>, or </em><code>false</code><em> otherwise</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/08/26/pyramid1-grid.jpg" style="width: 600px; height: 232px;" />
<pre>
<strong>Input:</strong> bottom = "BCD", allowed = ["BCC","CDE","CEA","FFF"]
<strong>Output:</strong> true
<strong>Explanation:</strong> The allowed triangular patterns are shown on the right.
Starting from the bottom (level 3), we can build "CE" on level 2 and then build "A" on level 1.
There are three triangular patterns in the pyramid, which are "BCC", "CDE", and "CEA". All are allowed.
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/08/26/pyramid2-grid.jpg" style="width: 600px; height: 359px;" />
<pre>
<strong>Input:</strong> bottom = "AAAA", allowed = ["AAB","AAC","BCD","BBE","DEF"]
<strong>Output:</strong> false
<strong>Explanation:</strong> The allowed triangular patterns are shown on the right.
Starting from the bottom (level 4), there are multiple ways to build level 3, but trying all the possibilites, you will get always stuck before building level 1.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>2 <= bottom.length <= 6</code></li>
<li><code>0 <= allowed.length <= 216</code></li>
<li><code>allowed[i].length == 3</code></li>
<li>The letters in all input strings are from the set <code>{'A', 'B', 'C', 'D', 'E', 'F'}</code>.</li>
<li>All the values of <code>allowed</code> are <strong>unique</strong>.</li>
</ul>
| Medium | 36.9K | 69.8K | 36,859 | 69,775 | 52.8% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool pyramidTransition(string bottom, vector<string>& allowed) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean pyramidTransition(String bottom, List<String> allowed) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def pyramidTransition(self, bottom, allowed):\n \"\"\"\n :type bottom: str\n :type allowed: List[str]\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def pyramidTransition(self, bottom: str, allowed: List[str]) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool pyramidTransition(char* bottom, char** allowed, int allowedSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool PyramidTransition(string bottom, IList<string> allowed) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} bottom\n * @param {string[]} allowed\n * @return {boolean}\n */\nvar pyramidTransition = function(bottom, allowed) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function pyramidTransition(bottom: string, allowed: string[]): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $bottom\n * @param String[] $allowed\n * @return Boolean\n */\n function pyramidTransition($bottom, $allowed) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func pyramidTransition(_ bottom: String, _ allowed: [String]) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun pyramidTransition(bottom: String, allowed: List<String>): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool pyramidTransition(String bottom, List<String> allowed) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func pyramidTransition(bottom string, allowed []string) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} bottom\n# @param {String[]} allowed\n# @return {Boolean}\ndef pyramid_transition(bottom, allowed)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def pyramidTransition(bottom: String, allowed: List[String]): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn pyramid_transition(bottom: String, allowed: Vec<String>) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (pyramid-transition bottom allowed)\n (-> string? (listof string?) boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec pyramid_transition(Bottom :: unicode:unicode_binary(), Allowed :: [unicode:unicode_binary()]) -> boolean().\npyramid_transition(Bottom, Allowed) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec pyramid_transition(bottom :: String.t, allowed :: [String.t]) :: boolean\n def pyramid_transition(bottom, allowed) do\n \n end\nend"}] | "BCD"
["BCC","CDE","CEA","FFF"] | {
"name": "pyramidTransition",
"params": [
{
"name": "bottom",
"type": "string"
},
{
"name": "allowed",
"type": "list<string>"
}
],
"return": {
"type": "boolean"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Bit Manipulation', 'Depth-First Search', 'Breadth-First Search'] |
757 | Set Intersection Size At Least Two | set-intersection-size-at-least-two | <p>You are given a 2D integer array <code>intervals</code> where <code>intervals[i] = [start<sub>i</sub>, end<sub>i</sub>]</code> represents all the integers from <code>start<sub>i</sub></code> to <code>end<sub>i</sub></code> inclusively.</p>
<p>A <strong>containing set</strong> is an array <code>nums</code> where each interval from <code>intervals</code> has <strong>at least two</strong> integers in <code>nums</code>.</p>
<ul>
<li>For example, if <code>intervals = [[1,3], [3,7], [8,9]]</code>, then <code>[1,2,4,7,8,9]</code> and <code>[2,3,4,8,9]</code> are <strong>containing sets</strong>.</li>
</ul>
<p>Return <em>the minimum possible size of a containing set</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> intervals = [[1,3],[3,7],[8,9]]
<strong>Output:</strong> 5
<strong>Explanation:</strong> let nums = [2, 3, 4, 8, 9].
It can be shown that there cannot be any containing array of size 4.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> intervals = [[1,3],[1,4],[2,5],[3,5]]
<strong>Output:</strong> 3
<strong>Explanation:</strong> let nums = [2, 3, 4].
It can be shown that there cannot be any containing array of size 2.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> intervals = [[1,2],[2,3],[2,4],[4,5]]
<strong>Output:</strong> 5
<strong>Explanation:</strong> let nums = [1, 2, 3, 4, 5].
It can be shown that there cannot be any containing array of size 4.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= intervals.length <= 3000</code></li>
<li><code>intervals[i].length == 2</code></li>
<li><code>0 <= start<sub>i</sub> < end<sub>i</sub> <= 10<sup>8</sup></code></li>
</ul>
| Hard | 26.3K | 58.5K | 26,311 | 58,462 | 45.0% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int intersectionSizeTwo(vector<vector<int>>& intervals) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int intersectionSizeTwo(int[][] intervals) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def intersectionSizeTwo(self, intervals):\n \"\"\"\n :type intervals: List[List[int]]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def intersectionSizeTwo(self, intervals: List[List[int]]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int intersectionSizeTwo(int** intervals, int intervalsSize, int* intervalsColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int IntersectionSizeTwo(int[][] intervals) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} intervals\n * @return {number}\n */\nvar intersectionSizeTwo = function(intervals) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function intersectionSizeTwo(intervals: number[][]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $intervals\n * @return Integer\n */\n function intersectionSizeTwo($intervals) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func intersectionSizeTwo(_ intervals: [[Int]]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun intersectionSizeTwo(intervals: Array<IntArray>): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int intersectionSizeTwo(List<List<int>> intervals) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func intersectionSizeTwo(intervals [][]int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} intervals\n# @return {Integer}\ndef intersection_size_two(intervals)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def intersectionSizeTwo(intervals: Array[Array[Int]]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn intersection_size_two(intervals: Vec<Vec<i32>>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (intersection-size-two intervals)\n (-> (listof (listof exact-integer?)) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec intersection_size_two(Intervals :: [[integer()]]) -> integer().\nintersection_size_two(Intervals) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec intersection_size_two(intervals :: [[integer]]) :: integer\n def intersection_size_two(intervals) do\n \n end\nend"}] | [[1,3],[3,7],[8,9]] | {
"name": "intersectionSizeTwo",
"params": [
{
"name": "intervals",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Greedy', 'Sorting'] |
758 | Bold Words in String | bold-words-in-string | null | Medium | 19.9K | 38.3K | 19,912 | 38,274 | 52.0% | [] | [] | Algorithms | null | ["ab","bc"]
"aabcd" | {
"name": "boldWords",
"params": [
{
"name": "words",
"type": "string[]"
},
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "string"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String', 'Trie', 'String Matching'] |
759 | Employee Free Time | employee-free-time | null | Hard | 163.4K | 225.3K | 163,423 | 225,262 | 72.5% | ['merge-intervals', 'interval-list-intersections'] | [] | Algorithms | null | [[[1,2],[5,6]],[[1,3]],[[4,10]]] | {
"name": "employeeFreeTime",
"params": [
{
"name": "schedule",
"type": "integer"
}
],
"return": {
"type": "integer"
},
"languages": [
"cpp",
"java",
"python",
"csharp",
"javascript",
"python3",
"golang",
"ruby",
"kotlin",
"scala",
"swift",
"php",
"typescript",
"rust"
],
"manual": true,
"typescriptCustomType" : "class Interval {\n start: number;\n end: number;\n constructor(start: number, end: number) {\n this.start = start;\n this.end = end;\n }\n}"
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"]} | ['Array', 'Sorting', 'Heap (Priority Queue)'] |
760 | Find Anagram Mappings | find-anagram-mappings | null | Easy | 107.2K | 127.9K | 107,188 | 127,852 | 83.8% | [] | [] | Algorithms | null | [12,28,46,32,50]
[50,12,32,46,28] | {
"name": "anagramMappings",
"params": [
{
"name": "nums1",
"type": "integer[]"
},
{
"name": "nums2",
"type": "integer[]"
}
],
"return": {
"type": "integer[]"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table'] |
761 | Special Binary String | special-binary-string | <p><strong>Special binary strings</strong> are binary strings with the following two properties:</p>
<ul>
<li>The number of <code>0</code>'s is equal to the number of <code>1</code>'s.</li>
<li>Every prefix of the binary string has at least as many <code>1</code>'s as <code>0</code>'s.</li>
</ul>
<p>You are given a <strong>special binary</strong> string <code>s</code>.</p>
<p>A move consists of choosing two consecutive, non-empty, special substrings of <code>s</code>, and swapping them. Two strings are consecutive if the last character of the first string is exactly one index before the first character of the second string.</p>
<p>Return <em>the lexicographically largest resulting string possible after applying the mentioned operations on the string</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = "11011000"
<strong>Output:</strong> "11100100"
<strong>Explanation:</strong> The strings "10" [occuring at s[1]] and "1100" [at s[3]] are swapped.
This is the lexicographically largest string possible after some number of swaps.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = "10"
<strong>Output:</strong> "10"
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s.length <= 50</code></li>
<li><code>s[i]</code> is either <code>'0'</code> or <code>'1'</code>.</li>
<li><code>s</code> is a special binary string.</li>
</ul>
| Hard | 22.6K | 35.8K | 22,608 | 35,776 | 63.2% | ['valid-parenthesis-string', 'number-of-good-binary-strings'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n string makeLargestSpecial(string s) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public String makeLargestSpecial(String s) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def makeLargestSpecial(self, s):\n \"\"\"\n :type s: str\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def makeLargestSpecial(self, s: str) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char* makeLargestSpecial(char* s) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public string MakeLargestSpecial(string s) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s\n * @return {string}\n */\nvar makeLargestSpecial = function(s) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function makeLargestSpecial(s: string): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s\n * @return String\n */\n function makeLargestSpecial($s) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func makeLargestSpecial(_ s: String) -> String {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun makeLargestSpecial(s: String): String {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String makeLargestSpecial(String s) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func makeLargestSpecial(s string) string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s\n# @return {String}\ndef make_largest_special(s)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def makeLargestSpecial(s: String): String = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn make_largest_special(s: String) -> String {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (make-largest-special s)\n (-> string? string?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec make_largest_special(S :: unicode:unicode_binary()) -> unicode:unicode_binary().\nmake_largest_special(S) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec make_largest_special(s :: String.t) :: String.t\n def make_largest_special(s) do\n \n end\nend"}] | "11011000" | {
"name": "makeLargestSpecial",
"params": [
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "string"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['String', 'Recursion'] |
762 | Prime Number of Set Bits in Binary Representation | prime-number-of-set-bits-in-binary-representation | <p>Given two integers <code>left</code> and <code>right</code>, return <em>the <strong>count</strong> of numbers in the <strong>inclusive</strong> range </em><code>[left, right]</code><em> having a <strong>prime number of set bits</strong> in their binary representation</em>.</p>
<p>Recall that the <strong>number of set bits</strong> an integer has is the number of <code>1</code>'s present when written in binary.</p>
<ul>
<li>For example, <code>21</code> written in binary is <code>10101</code>, which has <code>3</code> set bits.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> left = 6, right = 10
<strong>Output:</strong> 4
<strong>Explanation:</strong>
6 -> 110 (2 set bits, 2 is prime)
7 -> 111 (3 set bits, 3 is prime)
8 -> 1000 (1 set bit, 1 is not prime)
9 -> 1001 (2 set bits, 2 is prime)
10 -> 1010 (2 set bits, 2 is prime)
4 numbers have a prime number of set bits.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> left = 10, right = 15
<strong>Output:</strong> 5
<strong>Explanation:</strong>
10 -> 1010 (2 set bits, 2 is prime)
11 -> 1011 (3 set bits, 3 is prime)
12 -> 1100 (2 set bits, 2 is prime)
13 -> 1101 (3 set bits, 3 is prime)
14 -> 1110 (3 set bits, 3 is prime)
15 -> 1111 (4 set bits, 4 is not prime)
5 numbers have a prime number of set bits.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= left <= right <= 10<sup>6</sup></code></li>
<li><code>0 <= right - left <= 10<sup>4</sup></code></li>
</ul>
| Easy | 113.9K | 161.1K | 113,861 | 161,121 | 70.7% | ['number-of-1-bits'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int countPrimeSetBits(int left, int right) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int countPrimeSetBits(int left, int right) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def countPrimeSetBits(self, left, right):\n \"\"\"\n :type left: int\n :type right: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def countPrimeSetBits(self, left: int, right: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int countPrimeSetBits(int left, int right) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int CountPrimeSetBits(int left, int right) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} left\n * @param {number} right\n * @return {number}\n */\nvar countPrimeSetBits = function(left, right) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function countPrimeSetBits(left: number, right: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $left\n * @param Integer $right\n * @return Integer\n */\n function countPrimeSetBits($left, $right) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func countPrimeSetBits(_ left: Int, _ right: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun countPrimeSetBits(left: Int, right: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int countPrimeSetBits(int left, int right) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func countPrimeSetBits(left int, right int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} left\n# @param {Integer} right\n# @return {Integer}\ndef count_prime_set_bits(left, right)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def countPrimeSetBits(left: Int, right: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn count_prime_set_bits(left: i32, right: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (count-prime-set-bits left right)\n (-> exact-integer? exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec count_prime_set_bits(Left :: integer(), Right :: integer()) -> integer().\ncount_prime_set_bits(Left, Right) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec count_prime_set_bits(left :: integer, right :: integer) :: integer\n def count_prime_set_bits(left, right) do\n \n end\nend"}] | 6
10 | {
"name": "countPrimeSetBits",
"params": [
{
"name": "left",
"type": "integer"
},
{
"name": "right",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math', 'Bit Manipulation'] |
763 | Partition Labels | partition-labels | <p>You are given a string <code>s</code>. We want to partition the string into as many parts as possible so that each letter appears in at most one part. For example, the string <code>"ababcc"</code> can be partitioned into <code>["abab", "cc"]</code>, but partitions such as <code>["aba", "bcc"]</code> or <code>["ab", "ab", "cc"]</code> are invalid.</p>
<p>Note that the partition is done so that after concatenating all the parts in order, the resultant string should be <code>s</code>.</p>
<p>Return <em>a list of integers representing the size of these parts</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = "ababcbacadefegdehijhklij"
<strong>Output:</strong> [9,7,8]
<strong>Explanation:</strong>
The partition is "ababcbaca", "defegde", "hijhklij".
This is a partition so that each letter appears in at most one part.
A partition like "ababcbacadefegde", "hijhklij" is incorrect, because it splits s into less parts.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = "eccbbbbdec"
<strong>Output:</strong> [10]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s.length <= 500</code></li>
<li><code>s</code> consists of lowercase English letters.</li>
</ul>
| Medium | 703K | 863.2K | 702,957 | 863,221 | 81.4% | ['merge-intervals', 'optimal-partition-of-string'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<int> partitionLabels(string s) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public List<Integer> partitionLabels(String s) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def partitionLabels(self, s):\n \"\"\"\n :type s: str\n :rtype: List[int]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def partitionLabels(self, s: str) -> List[int]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nint* partitionLabels(char* s, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public IList<int> PartitionLabels(string s) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s\n * @return {number[]}\n */\nvar partitionLabels = function(s) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function partitionLabels(s: string): number[] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s\n * @return Integer[]\n */\n function partitionLabels($s) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func partitionLabels(_ s: String) -> [Int] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun partitionLabels(s: String): List<Int> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<int> partitionLabels(String s) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func partitionLabels(s string) []int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s\n# @return {Integer[]}\ndef partition_labels(s)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def partitionLabels(s: String): List[Int] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn partition_labels(s: String) -> Vec<i32> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (partition-labels s)\n (-> string? (listof exact-integer?))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec partition_labels(S :: unicode:unicode_binary()) -> [integer()].\npartition_labels(S) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec partition_labels(s :: String.t) :: [integer]\n def partition_labels(s) do\n \n end\nend"}] | "ababcbacadefegdehijhklij" | {
"name": "partitionLabels",
"params": [
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "list<integer>"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Hash Table', 'Two Pointers', 'String', 'Greedy'] |
764 | Largest Plus Sign | largest-plus-sign | <p>You are given an integer <code>n</code>. You have an <code>n x n</code> binary grid <code>grid</code> with all values initially <code>1</code>'s except for some indices given in the array <code>mines</code>. The <code>i<sup>th</sup></code> element of the array <code>mines</code> is defined as <code>mines[i] = [x<sub>i</sub>, y<sub>i</sub>]</code> where <code>grid[x<sub>i</sub>][y<sub>i</sub>] == 0</code>.</p>
<p>Return <em>the order of the largest <strong>axis-aligned</strong> plus sign of </em>1<em>'s contained in </em><code>grid</code>. If there is none, return <code>0</code>.</p>
<p>An <strong>axis-aligned plus sign</strong> of <code>1</code>'s of order <code>k</code> has some center <code>grid[r][c] == 1</code> along with four arms of length <code>k - 1</code> going up, down, left, and right, and made of <code>1</code>'s. Note that there could be <code>0</code>'s or <code>1</code>'s beyond the arms of the plus sign, only the relevant area of the plus sign is checked for <code>1</code>'s.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/13/plus1-grid.jpg" style="width: 404px; height: 405px;" />
<pre>
<strong>Input:</strong> n = 5, mines = [[4,2]]
<strong>Output:</strong> 2
<strong>Explanation:</strong> In the above grid, the largest plus sign can only be of order 2. One of them is shown.
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/13/plus2-grid.jpg" style="width: 84px; height: 85px;" />
<pre>
<strong>Input:</strong> n = 1, mines = [[0,0]]
<strong>Output:</strong> 0
<strong>Explanation:</strong> There is no plus sign, so return 0.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= n <= 500</code></li>
<li><code>1 <= mines.length <= 5000</code></li>
<li><code>0 <= x<sub>i</sub>, y<sub>i</sub> < n</code></li>
<li>All the pairs <code>(x<sub>i</sub>, y<sub>i</sub>)</code> are <strong>unique</strong>.</li>
</ul>
| Medium | 63.5K | 130.9K | 63,460 | 130,920 | 48.5% | ['maximal-square'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int orderOfLargestPlusSign(int n, vector<vector<int>>& mines) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int orderOfLargestPlusSign(int n, int[][] mines) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def orderOfLargestPlusSign(self, n, mines):\n \"\"\"\n :type n: int\n :type mines: List[List[int]]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def orderOfLargestPlusSign(self, n: int, mines: List[List[int]]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int orderOfLargestPlusSign(int n, int** mines, int minesSize, int* minesColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int OrderOfLargestPlusSign(int n, int[][] mines) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} n\n * @param {number[][]} mines\n * @return {number}\n */\nvar orderOfLargestPlusSign = function(n, mines) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function orderOfLargestPlusSign(n: number, mines: number[][]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $n\n * @param Integer[][] $mines\n * @return Integer\n */\n function orderOfLargestPlusSign($n, $mines) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func orderOfLargestPlusSign(_ n: Int, _ mines: [[Int]]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun orderOfLargestPlusSign(n: Int, mines: Array<IntArray>): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int orderOfLargestPlusSign(int n, List<List<int>> mines) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func orderOfLargestPlusSign(n int, mines [][]int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} n\n# @param {Integer[][]} mines\n# @return {Integer}\ndef order_of_largest_plus_sign(n, mines)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def orderOfLargestPlusSign(n: Int, mines: Array[Array[Int]]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn order_of_largest_plus_sign(n: i32, mines: Vec<Vec<i32>>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (order-of-largest-plus-sign n mines)\n (-> exact-integer? (listof (listof exact-integer?)) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec order_of_largest_plus_sign(N :: integer(), Mines :: [[integer()]]) -> integer().\norder_of_largest_plus_sign(N, Mines) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec order_of_largest_plus_sign(n :: integer, mines :: [[integer]]) :: integer\n def order_of_largest_plus_sign(n, mines) do\n \n end\nend"}] | 5
[[4,2]] | {
"name": "orderOfLargestPlusSign",
"params": [
{
"name": "n",
"type": "integer"
},
{
"name": "mines",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Dynamic Programming'] |
765 | Couples Holding Hands | couples-holding-hands | <p>There are <code>n</code> couples sitting in <code>2n</code> seats arranged in a row and want to hold hands.</p>
<p>The people and seats are represented by an integer array <code>row</code> where <code>row[i]</code> is the ID of the person sitting in the <code>i<sup>th</sup></code> seat. The couples are numbered in order, the first couple being <code>(0, 1)</code>, the second couple being <code>(2, 3)</code>, and so on with the last couple being <code>(2n - 2, 2n - 1)</code>.</p>
<p>Return <em>the minimum number of swaps so that every couple is sitting side by side</em>. A swap consists of choosing any two people, then they stand up and switch seats.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> row = [0,2,1,3]
<strong>Output:</strong> 1
<strong>Explanation:</strong> We only need to swap the second (row[1]) and third (row[2]) person.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> row = [3,2,0,1]
<strong>Output:</strong> 0
<strong>Explanation:</strong> All couples are already seated side by side.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>2n == row.length</code></li>
<li><code>2 <= n <= 30</code></li>
<li><code>n</code> is even.</li>
<li><code>0 <= row[i] < 2n</code></li>
<li>All the elements of <code>row</code> are <strong>unique</strong>.</li>
</ul>
| Hard | 71.3K | 122.5K | 71,315 | 122,548 | 58.2% | ['first-missing-positive', 'missing-number', 'k-similar-strings'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int minSwapsCouples(vector<int>& row) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int minSwapsCouples(int[] row) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def minSwapsCouples(self, row):\n \"\"\"\n :type row: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def minSwapsCouples(self, row: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int minSwapsCouples(int* row, int rowSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int MinSwapsCouples(int[] row) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} row\n * @return {number}\n */\nvar minSwapsCouples = function(row) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function minSwapsCouples(row: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $row\n * @return Integer\n */\n function minSwapsCouples($row) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func minSwapsCouples(_ row: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun minSwapsCouples(row: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int minSwapsCouples(List<int> row) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func minSwapsCouples(row []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} row\n# @return {Integer}\ndef min_swaps_couples(row)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def minSwapsCouples(row: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn min_swaps_couples(row: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (min-swaps-couples row)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec min_swaps_couples(Row :: [integer()]) -> integer().\nmin_swaps_couples(Row) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec min_swaps_couples(row :: [integer]) :: integer\n def min_swaps_couples(row) do\n \n end\nend"}] | [0,2,1,3] | {
"name": "minSwapsCouples",
"params": [
{
"name": "row",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Greedy', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Graph'] |
766 | Toeplitz Matrix | toeplitz-matrix | <p>Given an <code>m x n</code> <code>matrix</code>, return <em><code>true</code> if the matrix is Toeplitz. Otherwise, return <code>false</code>.</em></p>
<p>A matrix is <strong>Toeplitz</strong> if every diagonal from top-left to bottom-right has the same elements.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/11/04/ex1.jpg" style="width: 322px; height: 242px;" />
<pre>
<strong>Input:</strong> matrix = [[1,2,3,4],[5,1,2,3],[9,5,1,2]]
<strong>Output:</strong> true
<strong>Explanation:</strong>
In the above grid, the diagonals are:
"[9]", "[5, 5]", "[1, 1, 1]", "[2, 2, 2]", "[3, 3]", "[4]".
In each diagonal all elements are the same, so the answer is True.
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/11/04/ex2.jpg" style="width: 162px; height: 162px;" />
<pre>
<strong>Input:</strong> matrix = [[1,2],[2,2]]
<strong>Output:</strong> false
<strong>Explanation:</strong>
The diagonal "[1, 2]" has different elements.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>m == matrix.length</code></li>
<li><code>n == matrix[i].length</code></li>
<li><code>1 <= m, n <= 20</code></li>
<li><code>0 <= matrix[i][j] <= 99</code></li>
</ul>
<p> </p>
<p><strong>Follow up:</strong></p>
<ul>
<li>What if the <code>matrix</code> is stored on disk, and the memory is limited such that you can only load at most one row of the matrix into the memory at once?</li>
<li>What if the <code>matrix</code> is so large that you can only load up a partial row into the memory at once?</li>
</ul>
| Easy | 396.3K | 570.1K | 396,295 | 570,063 | 69.5% | ['valid-word-square'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool isToeplitzMatrix(vector<vector<int>>& matrix) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean isToeplitzMatrix(int[][] matrix) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def isToeplitzMatrix(self, matrix):\n \"\"\"\n :type matrix: List[List[int]]\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def isToeplitzMatrix(self, matrix: List[List[int]]) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool isToeplitzMatrix(int** matrix, int matrixSize, int* matrixColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool IsToeplitzMatrix(int[][] matrix) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} matrix\n * @return {boolean}\n */\nvar isToeplitzMatrix = function(matrix) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function isToeplitzMatrix(matrix: number[][]): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $matrix\n * @return Boolean\n */\n function isToeplitzMatrix($matrix) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func isToeplitzMatrix(_ matrix: [[Int]]) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun isToeplitzMatrix(matrix: Array<IntArray>): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool isToeplitzMatrix(List<List<int>> matrix) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func isToeplitzMatrix(matrix [][]int) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} matrix\n# @return {Boolean}\ndef is_toeplitz_matrix(matrix)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def isToeplitzMatrix(matrix: Array[Array[Int]]): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn is_toeplitz_matrix(matrix: Vec<Vec<i32>>) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (is-toeplitz-matrix matrix)\n (-> (listof (listof exact-integer?)) boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec is_toeplitz_matrix(Matrix :: [[integer()]]) -> boolean().\nis_toeplitz_matrix(Matrix) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec is_toeplitz_matrix(matrix :: [[integer]]) :: boolean\n def is_toeplitz_matrix(matrix) do\n \n end\nend"}] | [[1,2,3,4],[5,1,2,3],[9,5,1,2]] | {
"name": "isToeplitzMatrix",
"params": [
{
"name": "matrix",
"type": "integer[][]"
}
],
"return": {
"type": "boolean"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Matrix'] |
767 | Reorganize String | reorganize-string | <p>Given a string <code>s</code>, rearrange the characters of <code>s</code> so that any two adjacent characters are not the same.</p>
<p>Return <em>any possible rearrangement of</em> <code>s</code> <em>or return</em> <code>""</code> <em>if not possible</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre><strong>Input:</strong> s = "aab"
<strong>Output:</strong> "aba"
</pre><p><strong class="example">Example 2:</strong></p>
<pre><strong>Input:</strong> s = "aaab"
<strong>Output:</strong> ""
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s.length <= 500</code></li>
<li><code>s</code> consists of lowercase English letters.</li>
</ul>
| Medium | 495.1K | 885K | 495,061 | 884,984 | 55.9% | ['rearrange-string-k-distance-apart', 'task-scheduler', 'longest-happy-string'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n string reorganizeString(string s) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public String reorganizeString(String s) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def reorganizeString(self, s):\n \"\"\"\n :type s: str\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def reorganizeString(self, s: str) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char* reorganizeString(char* s) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public string ReorganizeString(string s) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s\n * @return {string}\n */\nvar reorganizeString = function(s) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function reorganizeString(s: string): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s\n * @return String\n */\n function reorganizeString($s) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func reorganizeString(_ s: String) -> String {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun reorganizeString(s: String): String {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String reorganizeString(String s) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func reorganizeString(s string) string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s\n# @return {String}\ndef reorganize_string(s)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def reorganizeString(s: String): String = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn reorganize_string(s: String) -> String {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (reorganize-string s)\n (-> string? string?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec reorganize_string(S :: unicode:unicode_binary()) -> unicode:unicode_binary().\nreorganize_string(S) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec reorganize_string(s :: String.t) :: String.t\n def reorganize_string(s) do\n \n end\nend"}] | "aab" | {
"name": "reorganizeString",
"params": [
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "string"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Hash Table', 'String', 'Greedy', 'Sorting', 'Heap (Priority Queue)', 'Counting'] |
768 | Max Chunks To Make Sorted II | max-chunks-to-make-sorted-ii | <p>You are given an integer array <code>arr</code>.</p>
<p>We split <code>arr</code> into some number of <strong>chunks</strong> (i.e., partitions), and individually sort each chunk. After concatenating them, the result should equal the sorted array.</p>
<p>Return <em>the largest number of chunks we can make to sort the array</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> arr = [5,4,3,2,1]
<strong>Output:</strong> 1
<strong>Explanation:</strong>
Splitting into two or more chunks will not return the required result.
For example, splitting into [5, 4], [3, 2, 1] will result in [4, 5, 1, 2, 3], which isn't sorted.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> arr = [2,1,3,4,4]
<strong>Output:</strong> 4
<strong>Explanation:</strong>
We can split into two chunks, such as [2, 1], [3, 4, 4].
However, splitting into [2, 1], [3], [4], [4] is the highest number of chunks possible.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= arr.length <= 2000</code></li>
<li><code>0 <= arr[i] <= 10<sup>8</sup></code></li>
</ul>
| Hard | 76.5K | 141.7K | 76,527 | 141,671 | 54.0% | ['max-chunks-to-make-sorted'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int maxChunksToSorted(vector<int>& arr) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int maxChunksToSorted(int[] arr) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def maxChunksToSorted(self, arr):\n \"\"\"\n :type arr: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def maxChunksToSorted(self, arr: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int maxChunksToSorted(int* arr, int arrSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int MaxChunksToSorted(int[] arr) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} arr\n * @return {number}\n */\nvar maxChunksToSorted = function(arr) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function maxChunksToSorted(arr: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $arr\n * @return Integer\n */\n function maxChunksToSorted($arr) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func maxChunksToSorted(_ arr: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun maxChunksToSorted(arr: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int maxChunksToSorted(List<int> arr) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func maxChunksToSorted(arr []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} arr\n# @return {Integer}\ndef max_chunks_to_sorted(arr)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def maxChunksToSorted(arr: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn max_chunks_to_sorted(arr: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (max-chunks-to-sorted arr)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec max_chunks_to_sorted(Arr :: [integer()]) -> integer().\nmax_chunks_to_sorted(Arr) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec max_chunks_to_sorted(arr :: [integer]) :: integer\n def max_chunks_to_sorted(arr) do\n \n end\nend"}] | [5,4,3,2,1] | {
"name": "maxChunksToSorted",
"params": [
{
"name": "arr",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Stack', 'Greedy', 'Sorting', 'Monotonic Stack'] |
769 | Max Chunks To Make Sorted | max-chunks-to-make-sorted | <p>You are given an integer array <code>arr</code> of length <code>n</code> that represents a permutation of the integers in the range <code>[0, n - 1]</code>.</p>
<p>We split <code>arr</code> into some number of <strong>chunks</strong> (i.e., partitions), and individually sort each chunk. After concatenating them, the result should equal the sorted array.</p>
<p>Return <em>the largest number of chunks we can make to sort the array</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> arr = [4,3,2,1,0]
<strong>Output:</strong> 1
<strong>Explanation:</strong>
Splitting into two or more chunks will not return the required result.
For example, splitting into [4, 3], [2, 1, 0] will result in [3, 4, 0, 1, 2], which isn't sorted.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> arr = [1,0,2,3,4]
<strong>Output:</strong> 4
<strong>Explanation:</strong>
We can split into two chunks, such as [1, 0], [2, 3, 4].
However, splitting into [1, 0], [2], [3], [4] is the highest number of chunks possible.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>n == arr.length</code></li>
<li><code>1 <= n <= 10</code></li>
<li><code>0 <= arr[i] < n</code></li>
<li>All the elements of <code>arr</code> are <strong>unique</strong>.</li>
</ul>
| Medium | 218.1K | 341K | 218,135 | 340,956 | 64.0% | ['max-chunks-to-make-sorted-ii'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int maxChunksToSorted(vector<int>& arr) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int maxChunksToSorted(int[] arr) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def maxChunksToSorted(self, arr):\n \"\"\"\n :type arr: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def maxChunksToSorted(self, arr: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int maxChunksToSorted(int* arr, int arrSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int MaxChunksToSorted(int[] arr) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} arr\n * @return {number}\n */\nvar maxChunksToSorted = function(arr) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function maxChunksToSorted(arr: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $arr\n * @return Integer\n */\n function maxChunksToSorted($arr) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func maxChunksToSorted(_ arr: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun maxChunksToSorted(arr: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int maxChunksToSorted(List<int> arr) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func maxChunksToSorted(arr []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} arr\n# @return {Integer}\ndef max_chunks_to_sorted(arr)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def maxChunksToSorted(arr: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn max_chunks_to_sorted(arr: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (max-chunks-to-sorted arr)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec max_chunks_to_sorted(Arr :: [integer()]) -> integer().\nmax_chunks_to_sorted(Arr) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec max_chunks_to_sorted(arr :: [integer]) :: integer\n def max_chunks_to_sorted(arr) do\n \n end\nend"}] | [4,3,2,1,0] | {
"name": "maxChunksToSorted",
"params": [
{
"name": "arr",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Stack', 'Greedy', 'Sorting', 'Monotonic Stack'] |
770 | Basic Calculator IV | basic-calculator-iv | <p>Given an expression such as <code>expression = "e + 8 - a + 5"</code> and an evaluation map such as <code>{"e": 1}</code> (given in terms of <code>evalvars = ["e"]</code> and <code>evalints = [1]</code>), return a list of tokens representing the simplified expression, such as <code>["-1*a","14"]</code></p>
<ul>
<li>An expression alternates chunks and symbols, with a space separating each chunk and symbol.</li>
<li>A chunk is either an expression in parentheses, a variable, or a non-negative integer.</li>
<li>A variable is a string of lowercase letters (not including digits.) Note that variables can be multiple letters, and note that variables never have a leading coefficient or unary operator like <code>"2x"</code> or <code>"-x"</code>.</li>
</ul>
<p>Expressions are evaluated in the usual order: brackets first, then multiplication, then addition and subtraction.</p>
<ul>
<li>For example, <code>expression = "1 + 2 * 3"</code> has an answer of <code>["7"]</code>.</li>
</ul>
<p>The format of the output is as follows:</p>
<ul>
<li>For each term of free variables with a non-zero coefficient, we write the free variables within a term in sorted order lexicographically.
<ul>
<li>For example, we would never write a term like <code>"b*a*c"</code>, only <code>"a*b*c"</code>.</li>
</ul>
</li>
<li>Terms have degrees equal to the number of free variables being multiplied, counting multiplicity. We write the largest degree terms of our answer first, breaking ties by lexicographic order ignoring the leading coefficient of the term.
<ul>
<li>For example, <code>"a*a*b*c"</code> has degree <code>4</code>.</li>
</ul>
</li>
<li>The leading coefficient of the term is placed directly to the left with an asterisk separating it from the variables (if they exist.) A leading coefficient of 1 is still printed.</li>
<li>An example of a well-formatted answer is <code>["-2*a*a*a", "3*a*a*b", "3*b*b", "4*a", "5*c", "-6"]</code>.</li>
<li>Terms (including constant terms) with coefficient <code>0</code> are not included.
<ul>
<li>For example, an expression of <code>"0"</code> has an output of <code>[]</code>.</li>
</ul>
</li>
</ul>
<p><strong>Note:</strong> You may assume that the given expression is always valid. All intermediate results will be in the range of <code>[-2<sup>31</sup>, 2<sup>31</sup> - 1]</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> expression = "e + 8 - a + 5", evalvars = ["e"], evalints = [1]
<strong>Output:</strong> ["-1*a","14"]
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> expression = "e - 8 + temperature - pressure", evalvars = ["e", "temperature"], evalints = [1, 12]
<strong>Output:</strong> ["-1*pressure","5"]
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> expression = "(e + 8) * (e - 8)", evalvars = [], evalints = []
<strong>Output:</strong> ["1*e*e","-64"]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= expression.length <= 250</code></li>
<li><code>expression</code> consists of lowercase English letters, digits, <code>'+'</code>, <code>'-'</code>, <code>'*'</code>, <code>'('</code>, <code>')'</code>, <code>' '</code>.</li>
<li><code>expression</code> does not contain any leading or trailing spaces.</li>
<li>All the tokens in <code>expression</code> are separated by a single space.</li>
<li><code>0 <= evalvars.length <= 100</code></li>
<li><code>1 <= evalvars[i].length <= 20</code></li>
<li><code>evalvars[i]</code> consists of lowercase English letters.</li>
<li><code>evalints.length == evalvars.length</code></li>
<li><code>-100 <= evalints[i] <= 100</code></li>
</ul>
| Hard | 12.1K | 22.2K | 12,142 | 22,229 | 54.6% | ['parse-lisp-expression', 'basic-calculator-iii'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<string> basicCalculatorIV(string expression, vector<string>& evalvars, vector<int>& evalints) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public List<String> basicCalculatorIV(String expression, String[] evalvars, int[] evalints) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def basicCalculatorIV(self, expression, evalvars, evalints):\n \"\"\"\n :type expression: str\n :type evalvars: List[str]\n :type evalints: List[int]\n :rtype: List[str]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def basicCalculatorIV(self, expression: str, evalvars: List[str], evalints: List[int]) -> List[str]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nchar** basicCalculatorIV(char* expression, char** evalvars, int evalvarsSize, int* evalints, int evalintsSize, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public IList<string> BasicCalculatorIV(string expression, string[] evalvars, int[] evalints) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} expression\n * @param {string[]} evalvars\n * @param {number[]} evalints\n * @return {string[]}\n */\nvar basicCalculatorIV = function(expression, evalvars, evalints) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function basicCalculatorIV(expression: string, evalvars: string[], evalints: number[]): string[] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $expression\n * @param String[] $evalvars\n * @param Integer[] $evalints\n * @return String[]\n */\n function basicCalculatorIV($expression, $evalvars, $evalints) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func basicCalculatorIV(_ expression: String, _ evalvars: [String], _ evalints: [Int]) -> [String] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun basicCalculatorIV(expression: String, evalvars: Array<String>, evalints: IntArray): List<String> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<String> basicCalculatorIV(String expression, List<String> evalvars, List<int> evalints) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func basicCalculatorIV(expression string, evalvars []string, evalints []int) []string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} expression\n# @param {String[]} evalvars\n# @param {Integer[]} evalints\n# @return {String[]}\ndef basic_calculator_iv(expression, evalvars, evalints)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def basicCalculatorIV(expression: String, evalvars: Array[String], evalints: Array[Int]): List[String] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn basic_calculator_iv(expression: String, evalvars: Vec<String>, evalints: Vec<i32>) -> Vec<String> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (basic-calculator-iv expression evalvars evalints)\n (-> string? (listof string?) (listof exact-integer?) (listof string?))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec basic_calculator_iv(Expression :: unicode:unicode_binary(), Evalvars :: [unicode:unicode_binary()], Evalints :: [integer()]) -> [unicode:unicode_binary()].\nbasic_calculator_iv(Expression, Evalvars, Evalints) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec basic_calculator_iv(expression :: String.t, evalvars :: [String.t], evalints :: [integer]) :: [String.t]\n def basic_calculator_iv(expression, evalvars, evalints) do\n \n end\nend"}] | "e + 8 - a + 5"
["e"]
[1] | {
"name": "basicCalculatorIV",
"params": [
{
"name": "expression",
"type": "string"
},
{
"name": "evalvars",
"type": "string[]"
},
{
"name": "evalints",
"type": "integer[]"
}
],
"return": {
"type": "list<string>"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Hash Table', 'Math', 'String', 'Stack', 'Recursion'] |
771 | Jewels and Stones | jewels-and-stones | <p>You're given strings <code>jewels</code> representing the types of stones that are jewels, and <code>stones</code> representing the stones you have. Each character in <code>stones</code> is a type of stone you have. You want to know how many of the stones you have are also jewels.</p>
<p>Letters are case sensitive, so <code>"a"</code> is considered a different type of stone from <code>"A"</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre><strong>Input:</strong> jewels = "aA", stones = "aAAbbbb"
<strong>Output:</strong> 3
</pre><p><strong class="example">Example 2:</strong></p>
<pre><strong>Input:</strong> jewels = "z", stones = "ZZ"
<strong>Output:</strong> 0
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= jewels.length, stones.length <= 50</code></li>
<li><code>jewels</code> and <code>stones</code> consist of only English letters.</li>
<li>All the characters of <code>jewels</code> are <strong>unique</strong>.</li>
</ul>
| Easy | 1.2M | 1.3M | 1,201,968 | 1,348,420 | 89.1% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int numJewelsInStones(string jewels, string stones) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int numJewelsInStones(String jewels, String stones) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def numJewelsInStones(self, jewels, stones):\n \"\"\"\n :type jewels: str\n :type stones: str\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def numJewelsInStones(self, jewels: str, stones: str) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int numJewelsInStones(char* jewels, char* stones) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int NumJewelsInStones(string jewels, string stones) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} jewels\n * @param {string} stones\n * @return {number}\n */\nvar numJewelsInStones = function(jewels, stones) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function numJewelsInStones(jewels: string, stones: string): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $jewels\n * @param String $stones\n * @return Integer\n */\n function numJewelsInStones($jewels, $stones) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func numJewelsInStones(_ jewels: String, _ stones: String) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun numJewelsInStones(jewels: String, stones: String): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int numJewelsInStones(String jewels, String stones) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func numJewelsInStones(jewels string, stones string) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} jewels\n# @param {String} stones\n# @return {Integer}\ndef num_jewels_in_stones(jewels, stones)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def numJewelsInStones(jewels: String, stones: String): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn num_jewels_in_stones(jewels: String, stones: String) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (num-jewels-in-stones jewels stones)\n (-> string? string? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec num_jewels_in_stones(Jewels :: unicode:unicode_binary(), Stones :: unicode:unicode_binary()) -> integer().\nnum_jewels_in_stones(Jewels, Stones) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec num_jewels_in_stones(jewels :: String.t, stones :: String.t) :: integer\n def num_jewels_in_stones(jewels, stones) do\n \n end\nend"}] | "aA"
"aAAbbbb" | {
"name": "numJewelsInStones",
"params": [
{
"name": "jewels",
"type": "string"
},
{
"name": "stones",
"type": "string"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Hash Table', 'String'] |
772 | Basic Calculator III | basic-calculator-iii | null | Hard | 142.9K | 274.2K | 142,949 | 274,179 | 52.1% | ['basic-calculator', 'basic-calculator-ii', 'basic-calculator-iv', 'build-binary-expression-tree-from-infix-expression'] | [] | Algorithms | null | "1+1" | {
"name": "calculate",
"params": [
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math', 'String', 'Stack', 'Recursion'] |
773 | Sliding Puzzle | sliding-puzzle | <p>On an <code>2 x 3</code> board, there are five tiles labeled from <code>1</code> to <code>5</code>, and an empty square represented by <code>0</code>. A <strong>move</strong> consists of choosing <code>0</code> and a 4-directionally adjacent number and swapping it.</p>
<p>The state of the board is solved if and only if the board is <code>[[1,2,3],[4,5,0]]</code>.</p>
<p>Given the puzzle board <code>board</code>, return <em>the least number of moves required so that the state of the board is solved</em>. If it is impossible for the state of the board to be solved, return <code>-1</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/29/slide1-grid.jpg" style="width: 244px; height: 165px;" />
<pre>
<strong>Input:</strong> board = [[1,2,3],[4,0,5]]
<strong>Output:</strong> 1
<strong>Explanation:</strong> Swap the 0 and the 5 in one move.
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/29/slide2-grid.jpg" style="width: 244px; height: 165px;" />
<pre>
<strong>Input:</strong> board = [[1,2,3],[5,4,0]]
<strong>Output:</strong> -1
<strong>Explanation:</strong> No number of moves will make the board solved.
</pre>
<p><strong class="example">Example 3:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/29/slide3-grid.jpg" style="width: 244px; height: 165px;" />
<pre>
<strong>Input:</strong> board = [[4,1,2],[5,0,3]]
<strong>Output:</strong> 5
<strong>Explanation:</strong> 5 is the smallest number of moves that solves the board.
An example path:
After move 0: [[4,1,2],[5,0,3]]
After move 1: [[4,1,2],[0,5,3]]
After move 2: [[0,1,2],[4,5,3]]
After move 3: [[1,0,2],[4,5,3]]
After move 4: [[1,2,0],[4,5,3]]
After move 5: [[1,2,3],[4,5,0]]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>board.length == 2</code></li>
<li><code>board[i].length == 3</code></li>
<li><code>0 <= board[i][j] <= 5</code></li>
<li>Each value <code>board[i][j]</code> is <strong>unique</strong>.</li>
</ul>
| Hard | 176.4K | 241.5K | 176,368 | 241,489 | 73.0% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int slidingPuzzle(vector<vector<int>>& board) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int slidingPuzzle(int[][] board) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def slidingPuzzle(self, board):\n \"\"\"\n :type board: List[List[int]]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def slidingPuzzle(self, board: List[List[int]]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int slidingPuzzle(int** board, int boardSize, int* boardColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int SlidingPuzzle(int[][] board) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} board\n * @return {number}\n */\nvar slidingPuzzle = function(board) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function slidingPuzzle(board: number[][]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $board\n * @return Integer\n */\n function slidingPuzzle($board) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func slidingPuzzle(_ board: [[Int]]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun slidingPuzzle(board: Array<IntArray>): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int slidingPuzzle(List<List<int>> board) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func slidingPuzzle(board [][]int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} board\n# @return {Integer}\ndef sliding_puzzle(board)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def slidingPuzzle(board: Array[Array[Int]]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn sliding_puzzle(board: Vec<Vec<i32>>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (sliding-puzzle board)\n (-> (listof (listof exact-integer?)) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec sliding_puzzle(Board :: [[integer()]]) -> integer().\nsliding_puzzle(Board) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec sliding_puzzle(board :: [[integer]]) :: integer\n def sliding_puzzle(board) do\n \n end\nend"}] | [[1,2,3],[4,0,5]] | {
"name": "slidingPuzzle",
"params": [
{
"name": "board",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Dynamic Programming', 'Backtracking', 'Breadth-First Search', 'Memoization', 'Matrix'] |
774 | Minimize Max Distance to Gas Station | minimize-max-distance-to-gas-station | null | Hard | 32.9K | 62.1K | 32,851 | 62,140 | 52.9% | ['koko-eating-bananas'] | [] | Algorithms | null | [1,2,3,4,5,6,7,8,9,10]
9 | {
"name": "minmaxGasDist",
"params": [
{
"name": "stations",
"type": "integer[]"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "double"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Binary Search'] |
775 | Global and Local Inversions | global-and-local-inversions | <p>You are given an integer array <code>nums</code> of length <code>n</code> which represents a permutation of all the integers in the range <code>[0, n - 1]</code>.</p>
<p>The number of <strong>global inversions</strong> is the number of the different pairs <code>(i, j)</code> where:</p>
<ul>
<li><code>0 <= i < j < n</code></li>
<li><code>nums[i] > nums[j]</code></li>
</ul>
<p>The number of <strong>local inversions</strong> is the number of indices <code>i</code> where:</p>
<ul>
<li><code>0 <= i < n - 1</code></li>
<li><code>nums[i] > nums[i + 1]</code></li>
</ul>
<p>Return <code>true</code> <em>if the number of <strong>global inversions</strong> is equal to the number of <strong>local inversions</strong></em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,0,2]
<strong>Output:</strong> true
<strong>Explanation:</strong> There is 1 global inversion and 1 local inversion.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,2,0]
<strong>Output:</strong> false
<strong>Explanation:</strong> There are 2 global inversions and 1 local inversion.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>n == nums.length</code></li>
<li><code>1 <= n <= 10<sup>5</sup></code></li>
<li><code>0 <= nums[i] < n</code></li>
<li>All the integers of <code>nums</code> are <strong>unique</strong>.</li>
<li><code>nums</code> is a permutation of all the numbers in the range <code>[0, n - 1]</code>.</li>
</ul>
| Medium | 80.7K | 190.9K | 80,720 | 190,865 | 42.3% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool isIdealPermutation(vector<int>& nums) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean isIdealPermutation(int[] nums) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def isIdealPermutation(self, nums):\n \"\"\"\n :type nums: List[int]\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def isIdealPermutation(self, nums: List[int]) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool isIdealPermutation(int* nums, int numsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool IsIdealPermutation(int[] nums) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @return {boolean}\n */\nvar isIdealPermutation = function(nums) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function isIdealPermutation(nums: number[]): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @return Boolean\n */\n function isIdealPermutation($nums) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func isIdealPermutation(_ nums: [Int]) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun isIdealPermutation(nums: IntArray): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool isIdealPermutation(List<int> nums) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func isIdealPermutation(nums []int) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @return {Boolean}\ndef is_ideal_permutation(nums)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def isIdealPermutation(nums: Array[Int]): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn is_ideal_permutation(nums: Vec<i32>) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (is-ideal-permutation nums)\n (-> (listof exact-integer?) boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec is_ideal_permutation(Nums :: [integer()]) -> boolean().\nis_ideal_permutation(Nums) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec is_ideal_permutation(nums :: [integer]) :: boolean\n def is_ideal_permutation(nums) do\n \n end\nend"}] | [1,0,2] | {
"name": "isIdealPermutation",
"params": [
{
"name": "nums",
"type": "integer[]"
}
],
"return": {
"type": "boolean"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Math'] |
776 | Split BST | split-bst | null | Medium | 110.6K | 134.2K | 110,643 | 134,193 | 82.5% | ['delete-node-in-a-bst'] | [] | Algorithms | null | [4,2,6,1,3,5,7]
2 | {
"name": "splitBST",
"params": [
{
"name": "root",
"type": "TreeNode"
},
{
"name": "target",
"type": "integer"
}
],
"return": {
"type": "TreeNode[]"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Tree', 'Binary Search Tree', 'Recursion', 'Binary Tree'] |
777 | Swap Adjacent in LR String | swap-adjacent-in-lr-string | <p>In a string composed of <code>'L'</code>, <code>'R'</code>, and <code>'X'</code> characters, like <code>"RXXLRXRXL"</code>, a move consists of either replacing one occurrence of <code>"XL"</code> with <code>"LX"</code>, or replacing one occurrence of <code>"RX"</code> with <code>"XR"</code>. Given the starting string <code>start</code> and the ending string <code>result</code>, return <code>True</code> if and only if there exists a sequence of moves to transform <code>start</code> to <code>result</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> start = "RXXLRXRXL", result = "XRLXXRRLX"
<strong>Output:</strong> true
<strong>Explanation:</strong> We can transform start to result following these steps:
RXXLRXRXL ->
XRXLRXRXL ->
XRLXRXRXL ->
XRLXXRRXL ->
XRLXXRRLX
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> start = "X", result = "L"
<strong>Output:</strong> false
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= start.length <= 10<sup>4</sup></code></li>
<li><code>start.length == result.length</code></li>
<li>Both <code>start</code> and <code>result</code> will only consist of characters in <code>'L'</code>, <code>'R'</code>, and <code>'X'</code>.</li>
</ul>
| Medium | 85.3K | 228.1K | 85,350 | 228,056 | 37.4% | ['move-pieces-to-obtain-a-string'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool canTransform(string start, string result) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean canTransform(String start, String result) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def canTransform(self, start, result):\n \"\"\"\n :type start: str\n :type result: str\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def canTransform(self, start: str, result: str) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool canTransform(char* start, char* result) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool CanTransform(string start, string result) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} start\n * @param {string} result\n * @return {boolean}\n */\nvar canTransform = function(start, result) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function canTransform(start: string, result: string): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $start\n * @param String $result\n * @return Boolean\n */\n function canTransform($start, $result) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func canTransform(_ start: String, _ result: String) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun canTransform(start: String, result: String): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool canTransform(String start, String result) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func canTransform(start string, result string) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} start\n# @param {String} result\n# @return {Boolean}\ndef can_transform(start, result)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def canTransform(start: String, result: String): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn can_transform(start: String, result: String) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (can-transform start result)\n (-> string? string? boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec can_transform(Start :: unicode:unicode_binary(), Result :: unicode:unicode_binary()) -> boolean().\ncan_transform(Start, Result) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec can_transform(start :: String.t, result :: String.t) :: boolean\n def can_transform(start, result) do\n \n end\nend"}] | "RXXLRXRXL"
"XRLXXRRLX" | {
"name": "canTransform",
"params": [
{
"name": "start",
"type": "string"
},
{
"name": "result",
"type": "string"
}
],
"return": {
"type": "boolean"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Two Pointers', 'String'] |
778 | Swim in Rising Water | swim-in-rising-water | <p>You are given an <code>n x n</code> integer matrix <code>grid</code> where each value <code>grid[i][j]</code> represents the elevation at that point <code>(i, j)</code>.</p>
<p>The rain starts to fall. At time <code>t</code>, the depth of the water everywhere is <code>t</code>. You can swim from a square to another 4-directionally adjacent square if and only if the elevation of both squares individually are at most <code>t</code>. You can swim infinite distances in zero time. Of course, you must stay within the boundaries of the grid during your swim.</p>
<p>Return <em>the least time until you can reach the bottom right square </em><code>(n - 1, n - 1)</code><em> if you start at the top left square </em><code>(0, 0)</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/29/swim1-grid.jpg" style="width: 164px; height: 165px;" />
<pre>
<strong>Input:</strong> grid = [[0,2],[1,3]]
<strong>Output:</strong> 3
Explanation:
At time 0, you are in grid location (0, 0).
You cannot go anywhere else because 4-directionally adjacent neighbors have a higher elevation than t = 0.
You cannot reach point (1, 1) until time 3.
When the depth of water is 3, we can swim anywhere inside the grid.
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/29/swim2-grid-1.jpg" style="width: 404px; height: 405px;" />
<pre>
<strong>Input:</strong> grid = [[0,1,2,3,4],[24,23,22,21,5],[12,13,14,15,16],[11,17,18,19,20],[10,9,8,7,6]]
<strong>Output:</strong> 16
<strong>Explanation:</strong> The final route is shown.
We need to wait until time 16 so that (0, 0) and (4, 4) are connected.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>n == grid.length</code></li>
<li><code>n == grid[i].length</code></li>
<li><code>1 <= n <= 50</code></li>
<li><code>0 <= grid[i][j] < n<sup>2</sup></code></li>
<li>Each value <code>grid[i][j]</code> is <strong>unique</strong>.</li>
</ul>
| Hard | 211.2K | 338.5K | 211,233 | 338,539 | 62.4% | ['path-with-minimum-effort'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int swimInWater(vector<vector<int>>& grid) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int swimInWater(int[][] grid) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def swimInWater(self, grid):\n \"\"\"\n :type grid: List[List[int]]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def swimInWater(self, grid: List[List[int]]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int swimInWater(int** grid, int gridSize, int* gridColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int SwimInWater(int[][] grid) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} grid\n * @return {number}\n */\nvar swimInWater = function(grid) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function swimInWater(grid: number[][]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $grid\n * @return Integer\n */\n function swimInWater($grid) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func swimInWater(_ grid: [[Int]]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun swimInWater(grid: Array<IntArray>): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int swimInWater(List<List<int>> grid) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func swimInWater(grid [][]int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} grid\n# @return {Integer}\ndef swim_in_water(grid)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def swimInWater(grid: Array[Array[Int]]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn swim_in_water(grid: Vec<Vec<i32>>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (swim-in-water grid)\n (-> (listof (listof exact-integer?)) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec swim_in_water(Grid :: [[integer()]]) -> integer().\nswim_in_water(Grid) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec swim_in_water(grid :: [[integer]]) :: integer\n def swim_in_water(grid) do\n \n end\nend"}] | [[0,2],[1,3]] | {
"name": "swimInWater",
"params": [
{
"name": "grid",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Binary Search', 'Depth-First Search', 'Breadth-First Search', 'Union Find', 'Heap (Priority Queue)', 'Matrix'] |
779 | K-th Symbol in Grammar | k-th-symbol-in-grammar | <p>We build a table of <code>n</code> rows (<strong>1-indexed</strong>). We start by writing <code>0</code> in the <code>1<sup>st</sup></code> row. Now in every subsequent row, we look at the previous row and replace each occurrence of <code>0</code> with <code>01</code>, and each occurrence of <code>1</code> with <code>10</code>.</p>
<ul>
<li>For example, for <code>n = 3</code>, the <code>1<sup>st</sup></code> row is <code>0</code>, the <code>2<sup>nd</sup></code> row is <code>01</code>, and the <code>3<sup>rd</sup></code> row is <code>0110</code>.</li>
</ul>
<p>Given two integer <code>n</code> and <code>k</code>, return the <code>k<sup>th</sup></code> (<strong>1-indexed</strong>) symbol in the <code>n<sup>th</sup></code> row of a table of <code>n</code> rows.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> n = 1, k = 1
<strong>Output:</strong> 0
<strong>Explanation:</strong> row 1: <u>0</u>
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> n = 2, k = 1
<strong>Output:</strong> 0
<strong>Explanation:</strong>
row 1: 0
row 2: <u>0</u>1
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> n = 2, k = 2
<strong>Output:</strong> 1
<strong>Explanation:</strong>
row 1: 0
row 2: 0<u>1</u>
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= n <= 30</code></li>
<li><code>1 <= k <= 2<sup>n - 1</sup></code></li>
</ul>
| Medium | 228.3K | 483.3K | 228,305 | 483,296 | 47.2% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int kthGrammar(int n, int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int kthGrammar(int n, int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def kthGrammar(self, n, k):\n \"\"\"\n :type n: int\n :type k: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def kthGrammar(self, n: int, k: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int kthGrammar(int n, int k) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int KthGrammar(int n, int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} n\n * @param {number} k\n * @return {number}\n */\nvar kthGrammar = function(n, k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function kthGrammar(n: number, k: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $n\n * @param Integer $k\n * @return Integer\n */\n function kthGrammar($n, $k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func kthGrammar(_ n: Int, _ k: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun kthGrammar(n: Int, k: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int kthGrammar(int n, int k) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func kthGrammar(n int, k int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} n\n# @param {Integer} k\n# @return {Integer}\ndef kth_grammar(n, k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def kthGrammar(n: Int, k: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn kth_grammar(n: i32, k: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (kth-grammar n k)\n (-> exact-integer? exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec kth_grammar(N :: integer(), K :: integer()) -> integer().\nkth_grammar(N, K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec kth_grammar(n :: integer, k :: integer) :: integer\n def kth_grammar(n, k) do\n \n end\nend"}] | 1
1 | {
"name": "kthGrammar",
"params": [
{
"name": "n",
"type": "integer"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math', 'Bit Manipulation', 'Recursion'] |
780 | Reaching Points | reaching-points | <p>Given four integers <code>sx</code>, <code>sy</code>, <code>tx</code>, and <code>ty</code>, return <code>true</code><em> if it is possible to convert the point </em><code>(sx, sy)</code><em> to the point </em><code>(tx, ty)</code> <em>through some operations</em><em>, or </em><code>false</code><em> otherwise</em>.</p>
<p>The allowed operation on some point <code>(x, y)</code> is to convert it to either <code>(x, x + y)</code> or <code>(x + y, y)</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> sx = 1, sy = 1, tx = 3, ty = 5
<strong>Output:</strong> true
<strong>Explanation:</strong>
One series of moves that transforms the starting point to the target is:
(1, 1) -> (1, 2)
(1, 2) -> (3, 2)
(3, 2) -> (3, 5)
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> sx = 1, sy = 1, tx = 2, ty = 2
<strong>Output:</strong> false
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> sx = 1, sy = 1, tx = 1, ty = 1
<strong>Output:</strong> true
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= sx, sy, tx, ty <= 10<sup>9</sup></code></li>
</ul>
| Hard | 74.1K | 221K | 74,120 | 220,967 | 33.5% | ['number-of-ways-to-reach-a-position-after-exactly-k-steps', 'check-if-point-is-reachable', 'determine-if-a-cell-is-reachable-at-a-given-time'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool reachingPoints(int sx, int sy, int tx, int ty) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean reachingPoints(int sx, int sy, int tx, int ty) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def reachingPoints(self, sx, sy, tx, ty):\n \"\"\"\n :type sx: int\n :type sy: int\n :type tx: int\n :type ty: int\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def reachingPoints(self, sx: int, sy: int, tx: int, ty: int) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool reachingPoints(int sx, int sy, int tx, int ty) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool ReachingPoints(int sx, int sy, int tx, int ty) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} sx\n * @param {number} sy\n * @param {number} tx\n * @param {number} ty\n * @return {boolean}\n */\nvar reachingPoints = function(sx, sy, tx, ty) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function reachingPoints(sx: number, sy: number, tx: number, ty: number): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $sx\n * @param Integer $sy\n * @param Integer $tx\n * @param Integer $ty\n * @return Boolean\n */\n function reachingPoints($sx, $sy, $tx, $ty) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func reachingPoints(_ sx: Int, _ sy: Int, _ tx: Int, _ ty: Int) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun reachingPoints(sx: Int, sy: Int, tx: Int, ty: Int): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool reachingPoints(int sx, int sy, int tx, int ty) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func reachingPoints(sx int, sy int, tx int, ty int) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} sx\n# @param {Integer} sy\n# @param {Integer} tx\n# @param {Integer} ty\n# @return {Boolean}\ndef reaching_points(sx, sy, tx, ty)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def reachingPoints(sx: Int, sy: Int, tx: Int, ty: Int): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn reaching_points(sx: i32, sy: i32, tx: i32, ty: i32) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (reaching-points sx sy tx ty)\n (-> exact-integer? exact-integer? exact-integer? exact-integer? boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec reaching_points(Sx :: integer(), Sy :: integer(), Tx :: integer(), Ty :: integer()) -> boolean().\nreaching_points(Sx, Sy, Tx, Ty) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec reaching_points(sx :: integer, sy :: integer, tx :: integer, ty :: integer) :: boolean\n def reaching_points(sx, sy, tx, ty) do\n \n end\nend"}] | 1
1
3
5 | {
"name": "reachingPoints",
"params": [
{
"name": "sx",
"type": "integer"
},
{
"name": "sy",
"type": "integer"
},
{
"name": "tx",
"type": "integer"
},
{
"name": "ty",
"type": "integer"
}
],
"return": {
"type": "boolean"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math'] |
781 | Rabbits in Forest | rabbits-in-forest | <p>There is a forest with an unknown number of rabbits. We asked n rabbits <strong>"How many rabbits have the same color as you?"</strong> and collected the answers in an integer array <code>answers</code> where <code>answers[i]</code> is the answer of the <code>i<sup>th</sup></code> rabbit.</p>
<p>Given the array <code>answers</code>, return <em>the minimum number of rabbits that could be in the forest</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> answers = [1,1,2]
<strong>Output:</strong> 5
<strong>Explanation:</strong>
The two rabbits that answered "1" could both be the same color, say red.
The rabbit that answered "2" can't be red or the answers would be inconsistent.
Say the rabbit that answered "2" was blue.
Then there should be 2 other blue rabbits in the forest that didn't answer into the array.
The smallest possible number of rabbits in the forest is therefore 5: 3 that answered plus 2 that didn't.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> answers = [10,10,10]
<strong>Output:</strong> 11
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= answers.length <= 1000</code></li>
<li><code>0 <= answers[i] < 1000</code></li>
</ul>
| Medium | 69.3K | 131.6K | 69,301 | 131,634 | 52.6% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int numRabbits(vector<int>& answers) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int numRabbits(int[] answers) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def numRabbits(self, answers):\n \"\"\"\n :type answers: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def numRabbits(self, answers: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int numRabbits(int* answers, int answersSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int NumRabbits(int[] answers) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} answers\n * @return {number}\n */\nvar numRabbits = function(answers) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function numRabbits(answers: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $answers\n * @return Integer\n */\n function numRabbits($answers) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func numRabbits(_ answers: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun numRabbits(answers: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int numRabbits(List<int> answers) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func numRabbits(answers []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} answers\n# @return {Integer}\ndef num_rabbits(answers)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def numRabbits(answers: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn num_rabbits(answers: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (num-rabbits answers)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec num_rabbits(Answers :: [integer()]) -> integer().\nnum_rabbits(Answers) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec num_rabbits(answers :: [integer]) :: integer\n def num_rabbits(answers) do\n \n end\nend"}] | [1,1,2] | {
"name": "numRabbits",
"params": [
{
"name": "answers",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'Math', 'Greedy'] |
782 | Transform to Chessboard | transform-to-chessboard | <p>You are given an <code>n x n</code> binary grid <code>board</code>. In each move, you can swap any two rows with each other, or any two columns with each other.</p>
<p>Return <em>the minimum number of moves to transform the board into a <strong>chessboard board</strong></em>. If the task is impossible, return <code>-1</code>.</p>
<p>A <strong>chessboard board</strong> is a board where no <code>0</code>'s and no <code>1</code>'s are 4-directionally adjacent.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/29/chessboard1-grid.jpg" style="width: 500px; height: 145px;" />
<pre>
<strong>Input:</strong> board = [[0,1,1,0],[0,1,1,0],[1,0,0,1],[1,0,0,1]]
<strong>Output:</strong> 2
<strong>Explanation:</strong> One potential sequence of moves is shown.
The first move swaps the first and second column.
The second move swaps the second and third row.
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/29/chessboard2-grid.jpg" style="width: 164px; height: 165px;" />
<pre>
<strong>Input:</strong> board = [[0,1],[1,0]]
<strong>Output:</strong> 0
<strong>Explanation:</strong> Also note that the board with 0 in the top left corner, is also a valid chessboard.
</pre>
<p><strong class="example">Example 3:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/06/29/chessboard3-grid.jpg" style="width: 164px; height: 165px;" />
<pre>
<strong>Input:</strong> board = [[1,0],[1,0]]
<strong>Output:</strong> -1
<strong>Explanation:</strong> No matter what sequence of moves you make, you cannot end with a valid chessboard.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>n == board.length</code></li>
<li><code>n == board[i].length</code></li>
<li><code>2 <= n <= 30</code></li>
<li><code>board[i][j]</code> is either <code>0</code> or <code>1</code>.</li>
</ul>
| Hard | 19.4K | 38.5K | 19,407 | 38,486 | 50.4% | ['minimum-moves-to-get-a-peaceful-board'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int movesToChessboard(vector<vector<int>>& board) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int movesToChessboard(int[][] board) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def movesToChessboard(self, board):\n \"\"\"\n :type board: List[List[int]]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def movesToChessboard(self, board: List[List[int]]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int movesToChessboard(int** board, int boardSize, int* boardColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int MovesToChessboard(int[][] board) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} board\n * @return {number}\n */\nvar movesToChessboard = function(board) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function movesToChessboard(board: number[][]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $board\n * @return Integer\n */\n function movesToChessboard($board) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func movesToChessboard(_ board: [[Int]]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun movesToChessboard(board: Array<IntArray>): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int movesToChessboard(List<List<int>> board) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func movesToChessboard(board [][]int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} board\n# @return {Integer}\ndef moves_to_chessboard(board)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def movesToChessboard(board: Array[Array[Int]]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn moves_to_chessboard(board: Vec<Vec<i32>>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (moves-to-chessboard board)\n (-> (listof (listof exact-integer?)) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec moves_to_chessboard(Board :: [[integer()]]) -> integer().\nmoves_to_chessboard(Board) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec moves_to_chessboard(board :: [[integer]]) :: integer\n def moves_to_chessboard(board) do\n \n end\nend"}] | [[0,1,1,0],[0,1,1,0],[1,0,0,1],[1,0,0,1]] | {
"name": "movesToChessboard",
"params": [
{
"name": "board",
"type": "integer[][]"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Math', 'Bit Manipulation', 'Matrix'] |
783 | Minimum Distance Between BST Nodes | minimum-distance-between-bst-nodes | <p>Given the <code>root</code> of a Binary Search Tree (BST), return <em>the minimum difference between the values of any two different nodes in the tree</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/02/05/bst1.jpg" style="width: 292px; height: 301px;" />
<pre>
<strong>Input:</strong> root = [4,2,6,1,3]
<strong>Output:</strong> 1
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/02/05/bst2.jpg" style="width: 282px; height: 301px;" />
<pre>
<strong>Input:</strong> root = [1,0,48,null,null,12,49]
<strong>Output:</strong> 1
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li>The number of nodes in the tree is in the range <code>[2, 100]</code>.</li>
<li><code>0 <= Node.val <= 10<sup>5</sup></code></li>
</ul>
<p> </p>
<p><strong>Note:</strong> This question is the same as 530: <a href="https://leetcode.com/problems/minimum-absolute-difference-in-bst/" target="_blank">https://leetcode.com/problems/minimum-absolute-difference-in-bst/</a></p>
| Easy | 282.9K | 470.2K | 282,895 | 470,236 | 60.2% | ['binary-tree-inorder-traversal'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * TreeNode *left;\n * TreeNode *right;\n * TreeNode() : val(0), left(nullptr), right(nullptr) {}\n * TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}\n * TreeNode(int x, TreeNode *left, TreeNode *right) : val(x), left(left), right(right) {}\n * };\n */\nclass Solution {\npublic:\n int minDiffInBST(TreeNode* root) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * int val;\n * TreeNode left;\n * TreeNode right;\n * TreeNode() {}\n * TreeNode(int val) { this.val = val; }\n * TreeNode(int val, TreeNode left, TreeNode right) {\n * this.val = val;\n * this.left = left;\n * this.right = right;\n * }\n * }\n */\nclass Solution {\n public int minDiffInBST(TreeNode root) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "# Definition for a binary tree node.\n# class TreeNode(object):\n# def __init__(self, val=0, left=None, right=None):\n# self.val = val\n# self.left = left\n# self.right = right\nclass Solution(object):\n def minDiffInBST(self, root):\n \"\"\"\n :type root: Optional[TreeNode]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "# Definition for a binary tree node.\n# class TreeNode:\n# def __init__(self, val=0, left=None, right=None):\n# self.val = val\n# self.left = left\n# self.right = right\nclass Solution:\n def minDiffInBST(self, root: Optional[TreeNode]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Definition for a binary tree node.\n * struct TreeNode {\n * int val;\n * struct TreeNode *left;\n * struct TreeNode *right;\n * };\n */\nint minDiffInBST(struct TreeNode* root) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * public int val;\n * public TreeNode left;\n * public TreeNode right;\n * public TreeNode(int val=0, TreeNode left=null, TreeNode right=null) {\n * this.val = val;\n * this.left = left;\n * this.right = right;\n * }\n * }\n */\npublic class Solution {\n public int MinDiffInBST(TreeNode root) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * Definition for a binary tree node.\n * function TreeNode(val, left, right) {\n * this.val = (val===undefined ? 0 : val)\n * this.left = (left===undefined ? null : left)\n * this.right = (right===undefined ? null : right)\n * }\n */\n/**\n * @param {TreeNode} root\n * @return {number}\n */\nvar minDiffInBST = function(root) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * val: number\n * left: TreeNode | null\n * right: TreeNode | null\n * constructor(val?: number, left?: TreeNode | null, right?: TreeNode | null) {\n * this.val = (val===undefined ? 0 : val)\n * this.left = (left===undefined ? null : left)\n * this.right = (right===undefined ? null : right)\n * }\n * }\n */\n\nfunction minDiffInBST(root: TreeNode | null): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * public $val = null;\n * public $left = null;\n * public $right = null;\n * function __construct($val = 0, $left = null, $right = null) {\n * $this->val = $val;\n * $this->left = $left;\n * $this->right = $right;\n * }\n * }\n */\nclass Solution {\n\n /**\n * @param TreeNode $root\n * @return Integer\n */\n function minDiffInBST($root) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "/**\n * Definition for a binary tree node.\n * public class TreeNode {\n * public var val: Int\n * public var left: TreeNode?\n * public var right: TreeNode?\n * public init() { self.val = 0; self.left = nil; self.right = nil; }\n * public init(_ val: Int) { self.val = val; self.left = nil; self.right = nil; }\n * public init(_ val: Int, _ left: TreeNode?, _ right: TreeNode?) {\n * self.val = val\n * self.left = left\n * self.right = right\n * }\n * }\n */\nclass Solution {\n func minDiffInBST(_ root: TreeNode?) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "/**\n * Example:\n * var ti = TreeNode(5)\n * var v = ti.`val`\n * Definition for a binary tree node.\n * class TreeNode(var `val`: Int) {\n * var left: TreeNode? = null\n * var right: TreeNode? = null\n * }\n */\nclass Solution {\n fun minDiffInBST(root: TreeNode?): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "/**\n * Definition for a binary tree node.\n * class TreeNode {\n * int val;\n * TreeNode? left;\n * TreeNode? right;\n * TreeNode([this.val = 0, this.left, this.right]);\n * }\n */\nclass Solution {\n int minDiffInBST(TreeNode? root) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "/**\n * Definition for a binary tree node.\n * type TreeNode struct {\n * Val int\n * Left *TreeNode\n * Right *TreeNode\n * }\n */\nfunc minDiffInBST(root *TreeNode) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# Definition for a binary tree node.\n# class TreeNode\n# attr_accessor :val, :left, :right\n# def initialize(val = 0, left = nil, right = nil)\n# @val = val\n# @left = left\n# @right = right\n# end\n# end\n# @param {TreeNode} root\n# @return {Integer}\ndef min_diff_in_bst(root)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "/**\n * Definition for a binary tree node.\n * class TreeNode(_value: Int = 0, _left: TreeNode = null, _right: TreeNode = null) {\n * var value: Int = _value\n * var left: TreeNode = _left\n * var right: TreeNode = _right\n * }\n */\nobject Solution {\n def minDiffInBST(root: TreeNode): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "// Definition for a binary tree node.\n// #[derive(Debug, PartialEq, Eq)]\n// pub struct TreeNode {\n// pub val: i32,\n// pub left: Option<Rc<RefCell<TreeNode>>>,\n// pub right: Option<Rc<RefCell<TreeNode>>>,\n// }\n// \n// impl TreeNode {\n// #[inline]\n// pub fn new(val: i32) -> Self {\n// TreeNode {\n// val,\n// left: None,\n// right: None\n// }\n// }\n// }\nuse std::rc::Rc;\nuse std::cell::RefCell;\nimpl Solution {\n pub fn min_diff_in_bst(root: Option<Rc<RefCell<TreeNode>>>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "; Definition for a binary tree node.\n#|\n\n; val : integer?\n; left : (or/c tree-node? #f)\n; right : (or/c tree-node? #f)\n(struct tree-node\n (val left right) #:mutable #:transparent)\n\n; constructor\n(define (make-tree-node [val 0])\n (tree-node val #f #f))\n\n|#\n\n(define/contract (min-diff-in-bst root)\n (-> (or/c tree-node? #f) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "%% Definition for a binary tree node.\n%%\n%% -record(tree_node, {val = 0 :: integer(),\n%% left = null :: 'null' | #tree_node{},\n%% right = null :: 'null' | #tree_node{}}).\n\n-spec min_diff_in_bst(Root :: #tree_node{} | null) -> integer().\nmin_diff_in_bst(Root) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "# Definition for a binary tree node.\n#\n# defmodule TreeNode do\n# @type t :: %__MODULE__{\n# val: integer,\n# left: TreeNode.t() | nil,\n# right: TreeNode.t() | nil\n# }\n# defstruct val: 0, left: nil, right: nil\n# end\n\ndefmodule Solution do\n @spec min_diff_in_bst(root :: TreeNode.t | nil) :: integer\n def min_diff_in_bst(root) do\n \n end\nend"}] | [4,2,6,1,3] | {
"name": "minDiffInBST",
"params": [
{
"name": "root",
"type": "TreeNode"
}
],
"return": {
"type": "integer"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Tree', 'Depth-First Search', 'Breadth-First Search', 'Binary Search Tree', 'Binary Tree'] |
784 | Letter Case Permutation | letter-case-permutation | <p>Given a string <code>s</code>, you can transform every letter individually to be lowercase or uppercase to create another string.</p>
<p>Return <em>a list of all possible strings we could create</em>. Return the output in <strong>any order</strong>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = "a1b2"
<strong>Output:</strong> ["a1b2","a1B2","A1b2","A1B2"]
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = "3z4"
<strong>Output:</strong> ["3z4","3Z4"]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s.length <= 12</code></li>
<li><code>s</code> consists of lowercase English letters, uppercase English letters, and digits.</li>
</ul>
| Medium | 331.8K | 442.8K | 331,753 | 442,829 | 74.9% | ['subsets', 'brace-expansion'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<string> letterCasePermutation(string s) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public List<String> letterCasePermutation(String s) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def letterCasePermutation(self, s):\n \"\"\"\n :type s: str\n :rtype: List[str]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def letterCasePermutation(self, s: str) -> List[str]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nchar** letterCasePermutation(char* s, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public IList<string> LetterCasePermutation(string s) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s\n * @return {string[]}\n */\nvar letterCasePermutation = function(s) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function letterCasePermutation(s: string): string[] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s\n * @return String[]\n */\n function letterCasePermutation($s) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func letterCasePermutation(_ s: String) -> [String] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun letterCasePermutation(s: String): List<String> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<String> letterCasePermutation(String s) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func letterCasePermutation(s string) []string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s\n# @return {String[]}\ndef letter_case_permutation(s)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def letterCasePermutation(s: String): List[String] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn letter_case_permutation(s: String) -> Vec<String> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (letter-case-permutation s)\n (-> string? (listof string?))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec letter_case_permutation(S :: unicode:unicode_binary()) -> [unicode:unicode_binary()].\nletter_case_permutation(S) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec letter_case_permutation(s :: String.t) :: [String.t]\n def letter_case_permutation(s) do\n \n end\nend"}] | "a1b2" | {
"name": "letterCasePermutation",
"params": [
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "list<string>"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['String', 'Backtracking', 'Bit Manipulation'] |
785 | Is Graph Bipartite? | is-graph-bipartite | <p>There is an <strong>undirected</strong> graph with <code>n</code> nodes, where each node is numbered between <code>0</code> and <code>n - 1</code>. You are given a 2D array <code>graph</code>, where <code>graph[u]</code> is an array of nodes that node <code>u</code> is adjacent to. More formally, for each <code>v</code> in <code>graph[u]</code>, there is an undirected edge between node <code>u</code> and node <code>v</code>. The graph has the following properties:</p>
<ul>
<li>There are no self-edges (<code>graph[u]</code> does not contain <code>u</code>).</li>
<li>There are no parallel edges (<code>graph[u]</code> does not contain duplicate values).</li>
<li>If <code>v</code> is in <code>graph[u]</code>, then <code>u</code> is in <code>graph[v]</code> (the graph is undirected).</li>
<li>The graph may not be connected, meaning there may be two nodes <code>u</code> and <code>v</code> such that there is no path between them.</li>
</ul>
<p>A graph is <strong>bipartite</strong> if the nodes can be partitioned into two independent sets <code>A</code> and <code>B</code> such that <strong>every</strong> edge in the graph connects a node in set <code>A</code> and a node in set <code>B</code>.</p>
<p>Return <code>true</code><em> if and only if it is <strong>bipartite</strong></em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/10/21/bi2.jpg" style="width: 222px; height: 222px;" />
<pre>
<strong>Input:</strong> graph = [[1,2,3],[0,2],[0,1,3],[0,2]]
<strong>Output:</strong> false
<strong>Explanation:</strong> There is no way to partition the nodes into two independent sets such that every edge connects a node in one and a node in the other.</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/10/21/bi1.jpg" style="width: 222px; height: 222px;" />
<pre>
<strong>Input:</strong> graph = [[1,3],[0,2],[1,3],[0,2]]
<strong>Output:</strong> true
<strong>Explanation:</strong> We can partition the nodes into two sets: {0, 2} and {1, 3}.</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>graph.length == n</code></li>
<li><code>1 <= n <= 100</code></li>
<li><code>0 <= graph[u].length < n</code></li>
<li><code>0 <= graph[u][i] <= n - 1</code></li>
<li><code>graph[u]</code> does not contain <code>u</code>.</li>
<li>All the values of <code>graph[u]</code> are <strong>unique</strong>.</li>
<li>If <code>graph[u]</code> contains <code>v</code>, then <code>graph[v]</code> contains <code>u</code>.</li>
</ul>
| Medium | 694.2K | 1.2M | 694,193 | 1,210,373 | 57.4% | ['divide-nodes-into-the-maximum-number-of-groups'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool isBipartite(vector<vector<int>>& graph) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean isBipartite(int[][] graph) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def isBipartite(self, graph):\n \"\"\"\n :type graph: List[List[int]]\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def isBipartite(self, graph: List[List[int]]) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool isBipartite(int** graph, int graphSize, int* graphColSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool IsBipartite(int[][] graph) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} graph\n * @return {boolean}\n */\nvar isBipartite = function(graph) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function isBipartite(graph: number[][]): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $graph\n * @return Boolean\n */\n function isBipartite($graph) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func isBipartite(_ graph: [[Int]]) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun isBipartite(graph: Array<IntArray>): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool isBipartite(List<List<int>> graph) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func isBipartite(graph [][]int) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} graph\n# @return {Boolean}\ndef is_bipartite(graph)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def isBipartite(graph: Array[Array[Int]]): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn is_bipartite(graph: Vec<Vec<i32>>) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (is-bipartite graph)\n (-> (listof (listof exact-integer?)) boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec is_bipartite(Graph :: [[integer()]]) -> boolean().\nis_bipartite(Graph) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec is_bipartite(graph :: [[integer]]) :: boolean\n def is_bipartite(graph) do\n \n end\nend"}] | [[1,2,3],[0,2],[0,1,3],[0,2]] | {
"name": "isBipartite",
"params": [
{
"name": "graph",
"type": "integer[][]"
}
],
"return": {
"type": "boolean"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Depth-First Search', 'Breadth-First Search', 'Union Find', 'Graph'] |
786 | K-th Smallest Prime Fraction | k-th-smallest-prime-fraction | <p>You are given a sorted integer array <code>arr</code> containing <code>1</code> and <strong>prime</strong> numbers, where all the integers of <code>arr</code> are unique. You are also given an integer <code>k</code>.</p>
<p>For every <code>i</code> and <code>j</code> where <code>0 <= i < j < arr.length</code>, we consider the fraction <code>arr[i] / arr[j]</code>.</p>
<p>Return <em>the</em> <code>k<sup>th</sup></code> <em>smallest fraction considered</em>. Return your answer as an array of integers of size <code>2</code>, where <code>answer[0] == arr[i]</code> and <code>answer[1] == arr[j]</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> arr = [1,2,3,5], k = 3
<strong>Output:</strong> [2,5]
<strong>Explanation:</strong> The fractions to be considered in sorted order are:
1/5, 1/3, 2/5, 1/2, 3/5, and 2/3.
The third fraction is 2/5.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> arr = [1,7], k = 1
<strong>Output:</strong> [1,7]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>2 <= arr.length <= 1000</code></li>
<li><code>1 <= arr[i] <= 3 * 10<sup>4</sup></code></li>
<li><code>arr[0] == 1</code></li>
<li><code>arr[i]</code> is a <strong>prime</strong> number for <code>i > 0</code>.</li>
<li>All the numbers of <code>arr</code> are <strong>unique</strong> and sorted in <strong>strictly increasing</strong> order.</li>
<li><code>1 <= k <= arr.length * (arr.length - 1) / 2</code></li>
</ul>
<p> </p>
<strong>Follow up:</strong> Can you solve the problem with better than <code>O(n<sup>2</sup>)</code> complexity? | Medium | 158.7K | 231.9K | 158,735 | 231,946 | 68.4% | ['kth-smallest-element-in-a-sorted-matrix', 'kth-smallest-number-in-multiplication-table', 'find-k-th-smallest-pair-distance'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<int> kthSmallestPrimeFraction(vector<int>& arr, int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int[] kthSmallestPrimeFraction(int[] arr, int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def kthSmallestPrimeFraction(self, arr, k):\n \"\"\"\n :type arr: List[int]\n :type k: int\n :rtype: List[int]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def kthSmallestPrimeFraction(self, arr: List[int], k: int) -> List[int]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nint* kthSmallestPrimeFraction(int* arr, int arrSize, int k, int* returnSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int[] KthSmallestPrimeFraction(int[] arr, int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} arr\n * @param {number} k\n * @return {number[]}\n */\nvar kthSmallestPrimeFraction = function(arr, k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function kthSmallestPrimeFraction(arr: number[], k: number): number[] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $arr\n * @param Integer $k\n * @return Integer[]\n */\n function kthSmallestPrimeFraction($arr, $k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func kthSmallestPrimeFraction(_ arr: [Int], _ k: Int) -> [Int] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun kthSmallestPrimeFraction(arr: IntArray, k: Int): IntArray {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<int> kthSmallestPrimeFraction(List<int> arr, int k) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func kthSmallestPrimeFraction(arr []int, k int) []int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} arr\n# @param {Integer} k\n# @return {Integer[]}\ndef kth_smallest_prime_fraction(arr, k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def kthSmallestPrimeFraction(arr: Array[Int], k: Int): Array[Int] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn kth_smallest_prime_fraction(arr: Vec<i32>, k: i32) -> Vec<i32> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (kth-smallest-prime-fraction arr k)\n (-> (listof exact-integer?) exact-integer? (listof exact-integer?))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec kth_smallest_prime_fraction(Arr :: [integer()], K :: integer()) -> [integer()].\nkth_smallest_prime_fraction(Arr, K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec kth_smallest_prime_fraction(arr :: [integer], k :: integer) :: [integer]\n def kth_smallest_prime_fraction(arr, k) do\n \n end\nend"}] | [1,2,3,5]
3 | {
"name": "kthSmallestPrimeFraction",
"params": [
{
"name": "arr",
"type": "integer[]"
},
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "integer[]"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Two Pointers', 'Binary Search', 'Sorting', 'Heap (Priority Queue)'] |
787 | Cheapest Flights Within K Stops | cheapest-flights-within-k-stops | <p>There are <code>n</code> cities connected by some number of flights. You are given an array <code>flights</code> where <code>flights[i] = [from<sub>i</sub>, to<sub>i</sub>, price<sub>i</sub>]</code> indicates that there is a flight from city <code>from<sub>i</sub></code> to city <code>to<sub>i</sub></code> with cost <code>price<sub>i</sub></code>.</p>
<p>You are also given three integers <code>src</code>, <code>dst</code>, and <code>k</code>, return <em><strong>the cheapest price</strong> from </em><code>src</code><em> to </em><code>dst</code><em> with at most </em><code>k</code><em> stops. </em>If there is no such route, return<em> </em><code>-1</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2022/03/18/cheapest-flights-within-k-stops-3drawio.png" style="width: 332px; height: 392px;" />
<pre>
<strong>Input:</strong> n = 4, flights = [[0,1,100],[1,2,100],[2,0,100],[1,3,600],[2,3,200]], src = 0, dst = 3, k = 1
<strong>Output:</strong> 700
<strong>Explanation:</strong>
The graph is shown above.
The optimal path with at most 1 stop from city 0 to 3 is marked in red and has cost 100 + 600 = 700.
Note that the path through cities [0,1,2,3] is cheaper but is invalid because it uses 2 stops.
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2022/03/18/cheapest-flights-within-k-stops-1drawio.png" style="width: 332px; height: 242px;" />
<pre>
<strong>Input:</strong> n = 3, flights = [[0,1,100],[1,2,100],[0,2,500]], src = 0, dst = 2, k = 1
<strong>Output:</strong> 200
<strong>Explanation:</strong>
The graph is shown above.
The optimal path with at most 1 stop from city 0 to 2 is marked in red and has cost 100 + 100 = 200.
</pre>
<p><strong class="example">Example 3:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2022/03/18/cheapest-flights-within-k-stops-2drawio.png" style="width: 332px; height: 242px;" />
<pre>
<strong>Input:</strong> n = 3, flights = [[0,1,100],[1,2,100],[0,2,500]], src = 0, dst = 2, k = 0
<strong>Output:</strong> 500
<strong>Explanation:</strong>
The graph is shown above.
The optimal path with no stops from city 0 to 2 is marked in red and has cost 500.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= n <= 100</code></li>
<li><code>0 <= flights.length <= (n * (n - 1) / 2)</code></li>
<li><code>flights[i].length == 3</code></li>
<li><code>0 <= from<sub>i</sub>, to<sub>i</sub> < n</code></li>
<li><code>from<sub>i</sub> != to<sub>i</sub></code></li>
<li><code>1 <= price<sub>i</sub> <= 10<sup>4</sup></code></li>
<li>There will not be any multiple flights between two cities.</li>
<li><code>0 <= src, dst, k < n</code></li>
<li><code>src != dst</code></li>
</ul>
| Medium | 704.5K | 1.8M | 704,496 | 1,753,919 | 40.2% | ['maximum-vacation-days', 'minimum-cost-to-reach-city-with-discounts'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int findCheapestPrice(int n, vector<vector<int>>& flights, int src, int dst, int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int findCheapestPrice(int n, int[][] flights, int src, int dst, int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def findCheapestPrice(self, n, flights, src, dst, k):\n \"\"\"\n :type n: int\n :type flights: List[List[int]]\n :type src: int\n :type dst: int\n :type k: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def findCheapestPrice(self, n: int, flights: List[List[int]], src: int, dst: int, k: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int findCheapestPrice(int n, int** flights, int flightsSize, int* flightsColSize, int src, int dst, int k) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int FindCheapestPrice(int n, int[][] flights, int src, int dst, int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} n\n * @param {number[][]} flights\n * @param {number} src\n * @param {number} dst\n * @param {number} k\n * @return {number}\n */\nvar findCheapestPrice = function(n, flights, src, dst, k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function findCheapestPrice(n: number, flights: number[][], src: number, dst: number, k: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $n\n * @param Integer[][] $flights\n * @param Integer $src\n * @param Integer $dst\n * @param Integer $k\n * @return Integer\n */\n function findCheapestPrice($n, $flights, $src, $dst, $k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func findCheapestPrice(_ n: Int, _ flights: [[Int]], _ src: Int, _ dst: Int, _ k: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun findCheapestPrice(n: Int, flights: Array<IntArray>, src: Int, dst: Int, k: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int findCheapestPrice(int n, List<List<int>> flights, int src, int dst, int k) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func findCheapestPrice(n int, flights [][]int, src int, dst int, k int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} n\n# @param {Integer[][]} flights\n# @param {Integer} src\n# @param {Integer} dst\n# @param {Integer} k\n# @return {Integer}\ndef find_cheapest_price(n, flights, src, dst, k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def findCheapestPrice(n: Int, flights: Array[Array[Int]], src: Int, dst: Int, k: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn find_cheapest_price(n: i32, flights: Vec<Vec<i32>>, src: i32, dst: i32, k: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (find-cheapest-price n flights src dst k)\n (-> exact-integer? (listof (listof exact-integer?)) exact-integer? exact-integer? exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec find_cheapest_price(N :: integer(), Flights :: [[integer()]], Src :: integer(), Dst :: integer(), K :: integer()) -> integer().\nfind_cheapest_price(N, Flights, Src, Dst, K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec find_cheapest_price(n :: integer, flights :: [[integer]], src :: integer, dst :: integer, k :: integer) :: integer\n def find_cheapest_price(n, flights, src, dst, k) do\n \n end\nend"}] | 4
[[0,1,100],[1,2,100],[2,0,100],[1,3,600],[2,3,200]]
0
3
1 | {
"name": "findCheapestPrice",
"params": [
{
"name": "n",
"type": "integer"
},
{
"name": "flights",
"type": "integer[][]"
},
{
"name": "src",
"type": "integer"
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{
"name": "dst",
"type": "integer"
},
{
"name": "k",
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],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Dynamic Programming', 'Depth-First Search', 'Breadth-First Search', 'Graph', 'Heap (Priority Queue)', 'Shortest Path'] |
788 | Rotated Digits | rotated-digits | <p>An integer <code>x</code> is a <strong>good</strong> if after rotating each digit individually by 180 degrees, we get a valid number that is different from <code>x</code>. Each digit must be rotated - we cannot choose to leave it alone.</p>
<p>A number is valid if each digit remains a digit after rotation. For example:</p>
<ul>
<li><code>0</code>, <code>1</code>, and <code>8</code> rotate to themselves,</li>
<li><code>2</code> and <code>5</code> rotate to each other (in this case they are rotated in a different direction, in other words, <code>2</code> or <code>5</code> gets mirrored),</li>
<li><code>6</code> and <code>9</code> rotate to each other, and</li>
<li>the rest of the numbers do not rotate to any other number and become invalid.</li>
</ul>
<p>Given an integer <code>n</code>, return <em>the number of <strong>good</strong> integers in the range </em><code>[1, n]</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> n = 10
<strong>Output:</strong> 4
<strong>Explanation:</strong> There are four good numbers in the range [1, 10] : 2, 5, 6, 9.
Note that 1 and 10 are not good numbers, since they remain unchanged after rotating.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> n = 1
<strong>Output:</strong> 0
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> n = 2
<strong>Output:</strong> 1
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= n <= 10<sup>4</sup></code></li>
</ul>
| Medium | 117K | 207.5K | 117,047 | 207,507 | 56.4% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int rotatedDigits(int n) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int rotatedDigits(int n) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def rotatedDigits(self, n):\n \"\"\"\n :type n: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def rotatedDigits(self, n: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int rotatedDigits(int n) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int RotatedDigits(int n) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} n\n * @return {number}\n */\nvar rotatedDigits = function(n) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function rotatedDigits(n: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $n\n * @return Integer\n */\n function rotatedDigits($n) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func rotatedDigits(_ n: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun rotatedDigits(n: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int rotatedDigits(int n) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func rotatedDigits(n int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} n\n# @return {Integer}\ndef rotated_digits(n)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def rotatedDigits(n: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn rotated_digits(n: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (rotated-digits n)\n (-> exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec rotated_digits(N :: integer()) -> integer().\nrotated_digits(N) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec rotated_digits(n :: integer) :: integer\n def rotated_digits(n) do\n \n end\nend"}] | 10 | {
"name": "rotatedDigits",
"params": [
{
"name": "n",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math', 'Dynamic Programming'] |
789 | Escape The Ghosts | escape-the-ghosts | <p>You are playing a simplified PAC-MAN game on an infinite 2-D grid. You start at the point <code>[0, 0]</code>, and you are given a destination point <code>target = [x<sub>target</sub>, y<sub>target</sub>]</code> that you are trying to get to. There are several ghosts on the map with their starting positions given as a 2D array <code>ghosts</code>, where <code>ghosts[i] = [x<sub>i</sub>, y<sub>i</sub>]</code> represents the starting position of the <code>i<sup>th</sup></code> ghost. All inputs are <strong>integral coordinates</strong>.</p>
<p>Each turn, you and all the ghosts may independently choose to either <strong>move 1 unit</strong> in any of the four cardinal directions: north, east, south, or west, or <strong>stay still</strong>. All actions happen <strong>simultaneously</strong>.</p>
<p>You escape if and only if you can reach the target <strong>before</strong> any ghost reaches you. If you reach any square (including the target) at the <strong>same time</strong> as a ghost, it <strong>does not</strong> count as an escape.</p>
<p>Return <code>true</code><em> if it is possible to escape regardless of how the ghosts move, otherwise return </em><code>false</code><em>.</em></p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> ghosts = [[1,0],[0,3]], target = [0,1]
<strong>Output:</strong> true
<strong>Explanation:</strong> You can reach the destination (0, 1) after 1 turn, while the ghosts located at (1, 0) and (0, 3) cannot catch up with you.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> ghosts = [[1,0]], target = [2,0]
<strong>Output:</strong> false
<strong>Explanation:</strong> You need to reach the destination (2, 0), but the ghost at (1, 0) lies between you and the destination.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> ghosts = [[2,0]], target = [1,0]
<strong>Output:</strong> false
<strong>Explanation:</strong> The ghost can reach the target at the same time as you.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= ghosts.length <= 100</code></li>
<li><code>ghosts[i].length == 2</code></li>
<li><code>-10<sup>4</sup> <= x<sub>i</sub>, y<sub>i</sub> <= 10<sup>4</sup></code></li>
<li>There can be <strong>multiple ghosts</strong> in the same location.</li>
<li><code>target.length == 2</code></li>
<li><code>-10<sup>4</sup> <= x<sub>target</sub>, y<sub>target</sub> <= 10<sup>4</sup></code></li>
</ul>
| Medium | 33.6K | 53.8K | 33,625 | 53,837 | 62.5% | ['cat-and-mouse-ii'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool escapeGhosts(vector<vector<int>>& ghosts, vector<int>& target) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean escapeGhosts(int[][] ghosts, int[] target) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def escapeGhosts(self, ghosts, target):\n \"\"\"\n :type ghosts: List[List[int]]\n :type target: List[int]\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def escapeGhosts(self, ghosts: List[List[int]], target: List[int]) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool escapeGhosts(int** ghosts, int ghostsSize, int* ghostsColSize, int* target, int targetSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool EscapeGhosts(int[][] ghosts, int[] target) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} ghosts\n * @param {number[]} target\n * @return {boolean}\n */\nvar escapeGhosts = function(ghosts, target) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function escapeGhosts(ghosts: number[][], target: number[]): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $ghosts\n * @param Integer[] $target\n * @return Boolean\n */\n function escapeGhosts($ghosts, $target) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func escapeGhosts(_ ghosts: [[Int]], _ target: [Int]) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun escapeGhosts(ghosts: Array<IntArray>, target: IntArray): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool escapeGhosts(List<List<int>> ghosts, List<int> target) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func escapeGhosts(ghosts [][]int, target []int) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} ghosts\n# @param {Integer[]} target\n# @return {Boolean}\ndef escape_ghosts(ghosts, target)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def escapeGhosts(ghosts: Array[Array[Int]], target: Array[Int]): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn escape_ghosts(ghosts: Vec<Vec<i32>>, target: Vec<i32>) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (escape-ghosts ghosts target)\n (-> (listof (listof exact-integer?)) (listof exact-integer?) boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec escape_ghosts(Ghosts :: [[integer()]], Target :: [integer()]) -> boolean().\nescape_ghosts(Ghosts, Target) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec escape_ghosts(ghosts :: [[integer]], target :: [integer]) :: boolean\n def escape_ghosts(ghosts, target) do\n \n end\nend"}] | [[1,0],[0,3]]
[0,1] | {
"name": "escapeGhosts",
"params": [
{
"name": "ghosts",
"type": "integer[][]"
},
{
"name": "target",
"type": "integer[]"
}
],
"return": {
"type": "boolean"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Math'] |
790 | Domino and Tromino Tiling | domino-and-tromino-tiling | <p>You have two types of tiles: a <code>2 x 1</code> domino shape and a tromino shape. You may rotate these shapes.</p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/07/15/lc-domino.jpg" style="width: 362px; height: 195px;" />
<p>Given an integer n, return <em>the number of ways to tile an</em> <code>2 x n</code> <em>board</em>. Since the answer may be very large, return it <strong>modulo</strong> <code>10<sup>9</sup> + 7</code>.</p>
<p>In a tiling, every square must be covered by a tile. Two tilings are different if and only if there are two 4-directionally adjacent cells on the board such that exactly one of the tilings has both squares occupied by a tile.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/07/15/lc-domino1.jpg" style="width: 500px; height: 226px;" />
<pre>
<strong>Input:</strong> n = 3
<strong>Output:</strong> 5
<strong>Explanation:</strong> The five different ways are show above.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> n = 1
<strong>Output:</strong> 1
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= n <= 1000</code></li>
</ul>
| Medium | 171K | 352.6K | 170,995 | 352,650 | 48.5% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int numTilings(int n) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int numTilings(int n) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def numTilings(self, n):\n \"\"\"\n :type n: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def numTilings(self, n: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int numTilings(int n) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int NumTilings(int n) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} n\n * @return {number}\n */\nvar numTilings = function(n) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function numTilings(n: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $n\n * @return Integer\n */\n function numTilings($n) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func numTilings(_ n: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun numTilings(n: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int numTilings(int n) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func numTilings(n int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} n\n# @return {Integer}\ndef num_tilings(n)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def numTilings(n: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn num_tilings(n: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (num-tilings n)\n (-> exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec num_tilings(N :: integer()) -> integer().\nnum_tilings(N) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec num_tilings(n :: integer) :: integer\n def num_tilings(n) do\n \n end\nend"}] | 3 | {
"name": "numTilings",
"params": [
{
"name": "n",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Dynamic Programming'] |
791 | Custom Sort String | custom-sort-string | <p>You are given two strings <code>order</code> and <code>s</code>. All the characters of <code>order</code> are <strong>unique</strong> and were sorted in some custom order previously.</p>
<p>Permute the characters of <code>s</code> so that they match the order that <code>order</code> was sorted. More specifically, if a character <code>x</code> occurs before a character <code>y</code> in <code>order</code>, then <code>x</code> should occur before <code>y</code> in the permuted string.</p>
<p>Return <em>any permutation of </em><code>s</code><em> that satisfies this property</em>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<div class="example-block" style="border-color: var(--border-tertiary); border-left-width: 2px; color: var(--text-secondary); font-size: .875rem; margin-bottom: 1rem; margin-top: 1rem; overflow: visible; padding-left: 1rem;">
<p><strong>Input: </strong> <span class="example-io" style="font-family: Menlo,sans-serif; font-size: 0.85rem;"> order = "cba", s = "abcd" </span></p>
<p><strong>Output: </strong> <span class="example-io" style="font-family: Menlo,sans-serif; font-size: 0.85rem;"> "cbad" </span></p>
<p><strong>Explanation: </strong> <code>"a"</code>, <code>"b"</code>, <code>"c"</code> appear in order, so the order of <code>"a"</code>, <code>"b"</code>, <code>"c"</code> should be <code>"c"</code>, <code>"b"</code>, and <code>"a"</code>.</p>
<p>Since <code>"d"</code> does not appear in <code>order</code>, it can be at any position in the returned string. <code>"dcba"</code>, <code>"cdba"</code>, <code>"cbda"</code> are also valid outputs.</p>
</div>
<p><strong class="example">Example 2:</strong></p>
<div class="example-block" style="border-color: var(--border-tertiary); border-left-width: 2px; color: var(--text-secondary); font-size: .875rem; margin-bottom: 1rem; margin-top: 1rem; overflow: visible; padding-left: 1rem;">
<p><strong>Input: </strong> <span class="example-io" style="font-family: Menlo,sans-serif; font-size: 0.85rem;"> order = "bcafg", s = "abcd" </span></p>
<p><strong>Output: </strong> <span class="example-io" style="font-family: Menlo,sans-serif; font-size: 0.85rem;"> "bcad" </span></p>
<p><strong>Explanation: </strong> The characters <code>"b"</code>, <code>"c"</code>, and <code>"a"</code> from <code>order</code> dictate the order for the characters in <code>s</code>. The character <code>"d"</code> in <code>s</code> does not appear in <code>order</code>, so its position is flexible.</p>
<p>Following the order of appearance in <code>order</code>, <code>"b"</code>, <code>"c"</code>, and <code>"a"</code> from <code>s</code> should be arranged as <code>"b"</code>, <code>"c"</code>, <code>"a"</code>. <code>"d"</code> can be placed at any position since it's not in order. The output <code>"bcad"</code> correctly follows this rule. Other arrangements like <code>"dbca"</code> or <code>"bcda"</code> would also be valid, as long as <code>"b"</code>, <code>"c"</code>, <code>"a"</code> maintain their order.</p>
</div>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= order.length <= 26</code></li>
<li><code>1 <= s.length <= 200</code></li>
<li><code>order</code> and <code>s</code> consist of lowercase English letters.</li>
<li>All the characters of <code>order</code> are <strong>unique</strong>.</li>
</ul>
| Medium | 518.3K | 721.5K | 518,343 | 721,526 | 71.8% | ['sort-the-students-by-their-kth-score'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n string customSortString(string order, string s) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public String customSortString(String order, String s) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def customSortString(self, order, s):\n \"\"\"\n :type order: str\n :type s: str\n :rtype: str\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def customSortString(self, order: str, s: str) -> str:\n "}, {"value": "c", "text": "C", "defaultCode": "char* customSortString(char* order, char* s) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public string CustomSortString(string order, string s) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} order\n * @param {string} s\n * @return {string}\n */\nvar customSortString = function(order, s) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function customSortString(order: string, s: string): string {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $order\n * @param String $s\n * @return String\n */\n function customSortString($order, $s) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func customSortString(_ order: String, _ s: String) -> String {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun customSortString(order: String, s: String): String {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n String customSortString(String order, String s) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func customSortString(order string, s string) string {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} order\n# @param {String} s\n# @return {String}\ndef custom_sort_string(order, s)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def customSortString(order: String, s: String): String = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn custom_sort_string(order: String, s: String) -> String {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (custom-sort-string order s)\n (-> string? string? string?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec custom_sort_string(Order :: unicode:unicode_binary(), S :: unicode:unicode_binary()) -> unicode:unicode_binary().\ncustom_sort_string(Order, S) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec custom_sort_string(order :: String.t, s :: String.t) :: String.t\n def custom_sort_string(order, s) do\n \n end\nend"}] | "cba"
"abcd" | {
"name": "customSortString",
"params": [
{
"name": "order",
"type": "string"
},
{
"name": "s",
"type": "string"
}
],
"return": {
"type": "string"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Hash Table', 'String', 'Sorting'] |
792 | Number of Matching Subsequences | number-of-matching-subsequences | <p>Given a string <code>s</code> and an array of strings <code>words</code>, return <em>the number of</em> <code>words[i]</code> <em>that is a subsequence of</em> <code>s</code>.</p>
<p>A <strong>subsequence</strong> of a string is a new string generated from the original string with some characters (can be none) deleted without changing the relative order of the remaining characters.</p>
<ul>
<li>For example, <code>"ace"</code> is a subsequence of <code>"abcde"</code>.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = "abcde", words = ["a","bb","acd","ace"]
<strong>Output:</strong> 3
<strong>Explanation:</strong> There are three strings in words that are a subsequence of s: "a", "acd", "ace".
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = "dsahjpjauf", words = ["ahjpjau","ja","ahbwzgqnuk","tnmlanowax"]
<strong>Output:</strong> 2
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s.length <= 5 * 10<sup>4</sup></code></li>
<li><code>1 <= words.length <= 5000</code></li>
<li><code>1 <= words[i].length <= 50</code></li>
<li><code>s</code> and <code>words[i]</code> consist of only lowercase English letters.</li>
</ul>
| Medium | 246.8K | 486.8K | 246,755 | 486,825 | 50.7% | ['is-subsequence', 'shortest-way-to-form-string', 'count-vowel-substrings-of-a-string'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int numMatchingSubseq(string s, vector<string>& words) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int numMatchingSubseq(String s, String[] words) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def numMatchingSubseq(self, s, words):\n \"\"\"\n :type s: str\n :type words: List[str]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def numMatchingSubseq(self, s: str, words: List[str]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int numMatchingSubseq(char* s, char** words, int wordsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int NumMatchingSubseq(string s, string[] words) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s\n * @param {string[]} words\n * @return {number}\n */\nvar numMatchingSubseq = function(s, words) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function numMatchingSubseq(s: string, words: string[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s\n * @param String[] $words\n * @return Integer\n */\n function numMatchingSubseq($s, $words) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func numMatchingSubseq(_ s: String, _ words: [String]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun numMatchingSubseq(s: String, words: Array<String>): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int numMatchingSubseq(String s, List<String> words) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func numMatchingSubseq(s string, words []string) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s\n# @param {String[]} words\n# @return {Integer}\ndef num_matching_subseq(s, words)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def numMatchingSubseq(s: String, words: Array[String]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn num_matching_subseq(s: String, words: Vec<String>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (num-matching-subseq s words)\n (-> string? (listof string?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec num_matching_subseq(S :: unicode:unicode_binary(), Words :: [unicode:unicode_binary()]) -> integer().\nnum_matching_subseq(S, Words) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec num_matching_subseq(s :: String.t, words :: [String.t]) :: integer\n def num_matching_subseq(s, words) do\n \n end\nend"}] | "abcde"
["a","bb","acd","ace"] | {
"name": "numMatchingSubseq",
"params": [
{
"name": "s",
"type": "string"
},
{
"name": "words",
"type": "string[]"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Hash Table', 'String', 'Binary Search', 'Dynamic Programming', 'Trie', 'Sorting'] |
793 | Preimage Size of Factorial Zeroes Function | preimage-size-of-factorial-zeroes-function | <p>Let <code>f(x)</code> be the number of zeroes at the end of <code>x!</code>. Recall that <code>x! = 1 * 2 * 3 * ... * x</code> and by convention, <code>0! = 1</code>.</p>
<ul>
<li>For example, <code>f(3) = 0</code> because <code>3! = 6</code> has no zeroes at the end, while <code>f(11) = 2</code> because <code>11! = 39916800</code> has two zeroes at the end.</li>
</ul>
<p>Given an integer <code>k</code>, return the number of non-negative integers <code>x</code> have the property that <code>f(x) = k</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> k = 0
<strong>Output:</strong> 5
<strong>Explanation:</strong> 0!, 1!, 2!, 3!, and 4! end with k = 0 zeroes.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> k = 5
<strong>Output:</strong> 0
<strong>Explanation:</strong> There is no x such that x! ends in k = 5 zeroes.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> k = 3
<strong>Output:</strong> 5
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= k <= 10<sup>9</sup></code></li>
</ul>
| Hard | 21.2K | 46.5K | 21,169 | 46,510 | 45.5% | ['factorial-trailing-zeroes'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int preimageSizeFZF(int k) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int preimageSizeFZF(int k) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def preimageSizeFZF(self, k):\n \"\"\"\n :type k: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def preimageSizeFZF(self, k: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int preimageSizeFZF(int k) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int PreimageSizeFZF(int k) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} k\n * @return {number}\n */\nvar preimageSizeFZF = function(k) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function preimageSizeFZF(k: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $k\n * @return Integer\n */\n function preimageSizeFZF($k) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func preimageSizeFZF(_ k: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun preimageSizeFZF(k: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int preimageSizeFZF(int k) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func preimageSizeFZF(k int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} k\n# @return {Integer}\ndef preimage_size_fzf(k)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def preimageSizeFZF(k: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn preimage_size_fzf(k: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (preimage-size-fzf k)\n (-> exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec preimage_size_fzf(K :: integer()) -> integer().\npreimage_size_fzf(K) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec preimage_size_fzf(k :: integer) :: integer\n def preimage_size_fzf(k) do\n \n end\nend"}] | 0 | {
"name": "preimageSizeFZF",
"params": [
{
"name": "k",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math', 'Binary Search'] |
794 | Valid Tic-Tac-Toe State | valid-tic-tac-toe-state | <p>Given a Tic-Tac-Toe board as a string array <code>board</code>, return <code>true</code> if and only if it is possible to reach this board position during the course of a valid tic-tac-toe game.</p>
<p>The board is a <code>3 x 3</code> array that consists of characters <code>' '</code>, <code>'X'</code>, and <code>'O'</code>. The <code>' '</code> character represents an empty square.</p>
<p>Here are the rules of Tic-Tac-Toe:</p>
<ul>
<li>Players take turns placing characters into empty squares <code>' '</code>.</li>
<li>The first player always places <code>'X'</code> characters, while the second player always places <code>'O'</code> characters.</li>
<li><code>'X'</code> and <code>'O'</code> characters are always placed into empty squares, never filled ones.</li>
<li>The game ends when there are three of the same (non-empty) character filling any row, column, or diagonal.</li>
<li>The game also ends if all squares are non-empty.</li>
<li>No more moves can be played if the game is over.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/05/15/tictactoe1-grid.jpg" style="width: 253px; height: 253px;" />
<pre>
<strong>Input:</strong> board = ["O "," "," "]
<strong>Output:</strong> false
<strong>Explanation:</strong> The first player always plays "X".
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/05/15/tictactoe2-grid.jpg" style="width: 253px; height: 253px;" />
<pre>
<strong>Input:</strong> board = ["XOX"," X "," "]
<strong>Output:</strong> false
<strong>Explanation:</strong> Players take turns making moves.
</pre>
<p><strong class="example">Example 3:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2021/05/15/tictactoe4-grid.jpg" style="width: 253px; height: 253px;" />
<pre>
<strong>Input:</strong> board = ["XOX","O O","XOX"]
<strong>Output:</strong> true
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>board.length == 3</code></li>
<li><code>board[i].length == 3</code></li>
<li><code>board[i][j]</code> is either <code>'X'</code>, <code>'O'</code>, or <code>' '</code>.</li>
</ul>
| Medium | 62.7K | 181K | 62,651 | 181,027 | 34.6% | ['design-tic-tac-toe'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool validTicTacToe(vector<string>& board) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean validTicTacToe(String[] board) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def validTicTacToe(self, board):\n \"\"\"\n :type board: List[str]\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def validTicTacToe(self, board: List[str]) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool validTicTacToe(char** board, int boardSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool ValidTicTacToe(string[] board) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string[]} board\n * @return {boolean}\n */\nvar validTicTacToe = function(board) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function validTicTacToe(board: string[]): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String[] $board\n * @return Boolean\n */\n function validTicTacToe($board) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func validTicTacToe(_ board: [String]) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun validTicTacToe(board: Array<String>): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool validTicTacToe(List<String> board) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func validTicTacToe(board []string) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String[]} board\n# @return {Boolean}\ndef valid_tic_tac_toe(board)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def validTicTacToe(board: Array[String]): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn valid_tic_tac_toe(board: Vec<String>) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (valid-tic-tac-toe board)\n (-> (listof string?) boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec valid_tic_tac_toe(Board :: [unicode:unicode_binary()]) -> boolean().\nvalid_tic_tac_toe(Board) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec valid_tic_tac_toe(board :: [String.t]) :: boolean\n def valid_tic_tac_toe(board) do\n \n end\nend"}] | ["O "," "," "] | {
"name": "validTicTacToe",
"params": [
{
"name": "board",
"type": "string[]"
}
],
"return": {
"type": "boolean"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Matrix'] |
795 | Number of Subarrays with Bounded Maximum | number-of-subarrays-with-bounded-maximum | <p>Given an integer array <code>nums</code> and two integers <code>left</code> and <code>right</code>, return <em>the number of contiguous non-empty <strong>subarrays</strong> such that the value of the maximum array element in that subarray is in the range </em><code>[left, right]</code>.</p>
<p>The test cases are generated so that the answer will fit in a <strong>32-bit</strong> integer.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [2,1,4,3], left = 2, right = 3
<strong>Output:</strong> 3
<strong>Explanation:</strong> There are three subarrays that meet the requirements: [2], [2, 1], [3].
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [2,9,2,5,6], left = 2, right = 8
<strong>Output:</strong> 7
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>
<li><code>0 <= nums[i] <= 10<sup>9</sup></code></li>
<li><code>0 <= left <= right <= 10<sup>9</sup></code></li>
</ul>
| Medium | 78K | 145.4K | 77,957 | 145,364 | 53.6% | ['count-subarrays-with-median-k', 'find-the-number-of-subarrays-where-boundary-elements-are-maximum'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int numSubarrayBoundedMax(vector<int>& nums, int left, int right) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int numSubarrayBoundedMax(int[] nums, int left, int right) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def numSubarrayBoundedMax(self, nums, left, right):\n \"\"\"\n :type nums: List[int]\n :type left: int\n :type right: int\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def numSubarrayBoundedMax(self, nums: List[int], left: int, right: int) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int numSubarrayBoundedMax(int* nums, int numsSize, int left, int right) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int NumSubarrayBoundedMax(int[] nums, int left, int right) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @param {number} left\n * @param {number} right\n * @return {number}\n */\nvar numSubarrayBoundedMax = function(nums, left, right) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function numSubarrayBoundedMax(nums: number[], left: number, right: number): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @param Integer $left\n * @param Integer $right\n * @return Integer\n */\n function numSubarrayBoundedMax($nums, $left, $right) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func numSubarrayBoundedMax(_ nums: [Int], _ left: Int, _ right: Int) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun numSubarrayBoundedMax(nums: IntArray, left: Int, right: Int): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int numSubarrayBoundedMax(List<int> nums, int left, int right) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func numSubarrayBoundedMax(nums []int, left int, right int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @param {Integer} left\n# @param {Integer} right\n# @return {Integer}\ndef num_subarray_bounded_max(nums, left, right)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def numSubarrayBoundedMax(nums: Array[Int], left: Int, right: Int): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn num_subarray_bounded_max(nums: Vec<i32>, left: i32, right: i32) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (num-subarray-bounded-max nums left right)\n (-> (listof exact-integer?) exact-integer? exact-integer? exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec num_subarray_bounded_max(Nums :: [integer()], Left :: integer(), Right :: integer()) -> integer().\nnum_subarray_bounded_max(Nums, Left, Right) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec num_subarray_bounded_max(nums :: [integer], left :: integer, right :: integer) :: integer\n def num_subarray_bounded_max(nums, left, right) do\n \n end\nend"}] | [2,1,4,3]
2
3 | {
"name": "numSubarrayBoundedMax",
"params": [
{
"name": "nums",
"type": "integer[]"
},
{
"name": "left",
"type": "integer"
},
{
"name": "right",
"type": "integer"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Two Pointers'] |
796 | Rotate String | rotate-string | <p>Given two strings <code>s</code> and <code>goal</code>, return <code>true</code> <em>if and only if</em> <code>s</code> <em>can become</em> <code>goal</code> <em>after some number of <strong>shifts</strong> on</em> <code>s</code>.</p>
<p>A <strong>shift</strong> on <code>s</code> consists of moving the leftmost character of <code>s</code> to the rightmost position.</p>
<ul>
<li>For example, if <code>s = "abcde"</code>, then it will be <code>"bcdea"</code> after one shift.</li>
</ul>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre><strong>Input:</strong> s = "abcde", goal = "cdeab"
<strong>Output:</strong> true
</pre><p><strong class="example">Example 2:</strong></p>
<pre><strong>Input:</strong> s = "abcde", goal = "abced"
<strong>Output:</strong> false
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= s.length, goal.length <= 100</code></li>
<li><code>s</code> and <code>goal</code> consist of lowercase English letters.</li>
</ul>
| Easy | 590.2K | 926.7K | 590,190 | 926,670 | 63.7% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n bool rotateString(string s, string goal) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public boolean rotateString(String s, String goal) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def rotateString(self, s, goal):\n \"\"\"\n :type s: str\n :type goal: str\n :rtype: bool\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def rotateString(self, s: str, goal: str) -> bool:\n "}, {"value": "c", "text": "C", "defaultCode": "bool rotateString(char* s, char* goal) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public bool RotateString(string s, string goal) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {string} s\n * @param {string} goal\n * @return {boolean}\n */\nvar rotateString = function(s, goal) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function rotateString(s: string, goal: string): boolean {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param String $s\n * @param String $goal\n * @return Boolean\n */\n function rotateString($s, $goal) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func rotateString(_ s: String, _ goal: String) -> Bool {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun rotateString(s: String, goal: String): Boolean {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n bool rotateString(String s, String goal) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func rotateString(s string, goal string) bool {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {String} s\n# @param {String} goal\n# @return {Boolean}\ndef rotate_string(s, goal)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def rotateString(s: String, goal: String): Boolean = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn rotate_string(s: String, goal: String) -> bool {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (rotate-string s goal)\n (-> string? string? boolean?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec rotate_string(S :: unicode:unicode_binary(), Goal :: unicode:unicode_binary()) -> boolean().\nrotate_string(S, Goal) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec rotate_string(s :: String.t, goal :: String.t) :: boolean\n def rotate_string(s, goal) do\n \n end\nend"}] | "abcde"
"cdeab" | {
"name": "rotateString",
"params": [
{
"name": "s",
"type": "string"
},
{
"name": "goal",
"type": "string"
}
],
"return": {
"type": "boolean"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['String', 'String Matching'] |
797 | All Paths From Source to Target | all-paths-from-source-to-target | <p>Given a directed acyclic graph (<strong>DAG</strong>) of <code>n</code> nodes labeled from <code>0</code> to <code>n - 1</code>, find all possible paths from node <code>0</code> to node <code>n - 1</code> and return them in <strong>any order</strong>.</p>
<p>The graph is given as follows: <code>graph[i]</code> is a list of all nodes you can visit from node <code>i</code> (i.e., there is a directed edge from node <code>i</code> to node <code>graph[i][j]</code>).</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/09/28/all_1.jpg" style="width: 242px; height: 242px;" />
<pre>
<strong>Input:</strong> graph = [[1,2],[3],[3],[]]
<strong>Output:</strong> [[0,1,3],[0,2,3]]
<strong>Explanation:</strong> There are two paths: 0 -> 1 -> 3 and 0 -> 2 -> 3.
</pre>
<p><strong class="example">Example 2:</strong></p>
<img alt="" src="https://assets.leetcode.com/uploads/2020/09/28/all_2.jpg" style="width: 423px; height: 301px;" />
<pre>
<strong>Input:</strong> graph = [[4,3,1],[3,2,4],[3],[4],[]]
<strong>Output:</strong> [[0,4],[0,3,4],[0,1,3,4],[0,1,2,3,4],[0,1,4]]
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>n == graph.length</code></li>
<li><code>2 <= n <= 15</code></li>
<li><code>0 <= graph[i][j] < n</code></li>
<li><code>graph[i][j] != i</code> (i.e., there will be no self-loops).</li>
<li>All the elements of <code>graph[i]</code> are <strong>unique</strong>.</li>
<li>The input graph is <strong>guaranteed</strong> to be a <strong>DAG</strong>.</li>
</ul>
| Medium | 596.2K | 718.4K | 596,235 | 718,404 | 83.0% | ['number-of-ways-to-arrive-at-destination', 'number-of-increasing-paths-in-a-grid'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n vector<vector<int>> allPathsSourceTarget(vector<vector<int>>& graph) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public List<List<Integer>> allPathsSourceTarget(int[][] graph) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def allPathsSourceTarget(self, graph):\n \"\"\"\n :type graph: List[List[int]]\n :rtype: List[List[int]]\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def allPathsSourceTarget(self, graph: List[List[int]]) -> List[List[int]]:\n "}, {"value": "c", "text": "C", "defaultCode": "/**\n * Return an array of arrays of size *returnSize.\n * The sizes of the arrays are returned as *returnColumnSizes array.\n * Note: Both returned array and *columnSizes array must be malloced, assume caller calls free().\n */\nint** allPathsSourceTarget(int** graph, int graphSize, int* graphColSize, int* returnSize, int** returnColumnSizes) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public IList<IList<int>> AllPathsSourceTarget(int[][] graph) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[][]} graph\n * @return {number[][]}\n */\nvar allPathsSourceTarget = function(graph) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function allPathsSourceTarget(graph: number[][]): number[][] {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[][] $graph\n * @return Integer[][]\n */\n function allPathsSourceTarget($graph) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func allPathsSourceTarget(_ graph: [[Int]]) -> [[Int]] {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun allPathsSourceTarget(graph: Array<IntArray>): List<List<Int>> {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n List<List<int>> allPathsSourceTarget(List<List<int>> graph) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func allPathsSourceTarget(graph [][]int) [][]int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[][]} graph\n# @return {Integer[][]}\ndef all_paths_source_target(graph)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def allPathsSourceTarget(graph: Array[Array[Int]]): List[List[Int]] = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn all_paths_source_target(graph: Vec<Vec<i32>>) -> Vec<Vec<i32>> {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (all-paths-source-target graph)\n (-> (listof (listof exact-integer?)) (listof (listof exact-integer?)))\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec all_paths_source_target(Graph :: [[integer()]]) -> [[integer()]].\nall_paths_source_target(Graph) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec all_paths_source_target(graph :: [[integer]]) :: [[integer]]\n def all_paths_source_target(graph) do\n \n end\nend"}] | [[1,2],[3],[3],[]] | {
"name": "allPathsSourceTarget",
"params": [
{
"name": "graph",
"type": "integer[][]"
}
],
"return": {
"type": "list<list<integer>>"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Backtracking', 'Depth-First Search', 'Breadth-First Search', 'Graph'] |
798 | Smallest Rotation with Highest Score | smallest-rotation-with-highest-score | <p>You are given an array <code>nums</code>. You can rotate it by a non-negative integer <code>k</code> so that the array becomes <code>[nums[k], nums[k + 1], ... nums[nums.length - 1], nums[0], nums[1], ..., nums[k-1]]</code>. Afterward, any entries that are less than or equal to their index are worth one point.</p>
<ul>
<li>For example, if we have <code>nums = [2,4,1,3,0]</code>, and we rotate by <code>k = 2</code>, it becomes <code>[1,3,0,2,4]</code>. This is worth <code>3</code> points because <code>1 > 0</code> [no points], <code>3 > 1</code> [no points], <code>0 <= 2</code> [one point], <code>2 <= 3</code> [one point], <code>4 <= 4</code> [one point].</li>
</ul>
<p>Return <em>the rotation index </em><code>k</code><em> that corresponds to the highest score we can achieve if we rotated </em><code>nums</code><em> by it</em>. If there are multiple answers, return the smallest such index <code>k</code>.</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> nums = [2,3,1,4,0]
<strong>Output:</strong> 3
<strong>Explanation:</strong> Scores for each k are listed below:
k = 0, nums = [2,3,1,4,0], score 2
k = 1, nums = [3,1,4,0,2], score 3
k = 2, nums = [1,4,0,2,3], score 3
k = 3, nums = [4,0,2,3,1], score 4
k = 4, nums = [0,2,3,1,4], score 3
So we should choose k = 3, which has the highest score.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> nums = [1,3,0,2,4]
<strong>Output:</strong> 0
<strong>Explanation:</strong> nums will always have 3 points no matter how it shifts.
So we will choose the smallest k, which is 0.
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>
<li><code>0 <= nums[i] < nums.length</code></li>
</ul>
| Hard | 15.7K | 30.3K | 15,708 | 30,278 | 51.9% | [] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n int bestRotation(vector<int>& nums) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public int bestRotation(int[] nums) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def bestRotation(self, nums):\n \"\"\"\n :type nums: List[int]\n :rtype: int\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def bestRotation(self, nums: List[int]) -> int:\n "}, {"value": "c", "text": "C", "defaultCode": "int bestRotation(int* nums, int numsSize) {\n \n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public int BestRotation(int[] nums) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number[]} nums\n * @return {number}\n */\nvar bestRotation = function(nums) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function bestRotation(nums: number[]): number {\n \n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer[] $nums\n * @return Integer\n */\n function bestRotation($nums) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func bestRotation(_ nums: [Int]) -> Int {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun bestRotation(nums: IntArray): Int {\n \n }\n}"}, {"value": "dart", "text": "Dart", "defaultCode": "class Solution {\n int bestRotation(List<int> nums) {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func bestRotation(nums []int) int {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer[]} nums\n# @return {Integer}\ndef best_rotation(nums)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def bestRotation(nums: Array[Int]): Int = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn best_rotation(nums: Vec<i32>) -> i32 {\n \n }\n}"}, {"value": "racket", "text": "Racket", "defaultCode": "(define/contract (best-rotation nums)\n (-> (listof exact-integer?) exact-integer?)\n )"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec best_rotation(Nums :: [integer()]) -> integer().\nbest_rotation(Nums) ->\n ."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule Solution do\n @spec best_rotation(nums :: [integer]) :: integer\n def best_rotation(nums) do\n \n end\nend"}] | [2,3,1,4,0] | {
"name": "bestRotation",
"params": [
{
"name": "nums",
"type": "integer[]"
}
],
"return": {
"type": "integer"
}
} | {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Array', 'Prefix Sum'] |
799 | Champagne Tower | champagne-tower | <p>We stack glasses in a pyramid, where the <strong>first</strong> row has <code>1</code> glass, the <strong>second</strong> row has <code>2</code> glasses, and so on until the 100<sup>th</sup> row. Each glass holds one cup of champagne.</p>
<p>Then, some champagne is poured into the first glass at the top. When the topmost glass is full, any excess liquid poured will fall equally to the glass immediately to the left and right of it. When those glasses become full, any excess champagne will fall equally to the left and right of those glasses, and so on. (A glass at the bottom row has its excess champagne fall on the floor.)</p>
<p>For example, after one cup of champagne is poured, the top most glass is full. After two cups of champagne are poured, the two glasses on the second row are half full. After three cups of champagne are poured, those two cups become full - there are 3 full glasses total now. After four cups of champagne are poured, the third row has the middle glass half full, and the two outside glasses are a quarter full, as pictured below.</p>
<p><img alt="" src="https://s3-lc-upload.s3.amazonaws.com/uploads/2018/03/09/tower.png" style="height: 241px; width: 350px;" /></p>
<p>Now after pouring some non-negative integer cups of champagne, return how full the <code>j<sup>th</sup></code> glass in the <code>i<sup>th</sup></code> row is (both <code>i</code> and <code>j</code> are 0-indexed.)</p>
<p> </p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> poured = 1, query_row = 1, query_glass = 1
<strong>Output:</strong> 0.00000
<strong>Explanation:</strong> We poured 1 cup of champange to the top glass of the tower (which is indexed as (0, 0)). There will be no excess liquid so all the glasses under the top glass will remain empty.
</pre>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> poured = 2, query_row = 1, query_glass = 1
<strong>Output:</strong> 0.50000
<strong>Explanation:</strong> We poured 2 cups of champange to the top glass of the tower (which is indexed as (0, 0)). There is one cup of excess liquid. The glass indexed as (1, 0) and the glass indexed as (1, 1) will share the excess liquid equally, and each will get half cup of champange.
</pre>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> poured = 100000009, query_row = 33, query_glass = 17
<strong>Output:</strong> 1.00000
</pre>
<p> </p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>0 <= poured <= 10<sup>9</sup></code></li>
<li><code>0 <= query_glass <= query_row < 100</code></li>
</ul> | Medium | 161.4K | 277.2K | 161,427 | 277,249 | 58.2% | ['number-of-ways-to-build-house-of-cards'] | [] | Algorithms | [{"value": "cpp", "text": "C++", "defaultCode": "class Solution {\npublic:\n double champagneTower(int poured, int query_row, int query_glass) {\n \n }\n};"}, {"value": "java", "text": "Java", "defaultCode": "class Solution {\n public double champagneTower(int poured, int query_row, int query_glass) {\n \n }\n}"}, {"value": "python", "text": "Python", "defaultCode": "class Solution(object):\n def champagneTower(self, poured, query_row, query_glass):\n \"\"\"\n :type poured: int\n :type query_row: int\n :type query_glass: int\n :rtype: float\n \"\"\"\n "}, {"value": "python3", "text": "Python3", "defaultCode": "class Solution:\n def champagneTower(self, poured: int, query_row: int, query_glass: int) -> float:\n "}, {"value": "c", "text": "C", "defaultCode": "\n\ndouble champagneTower(int poured, int query_row, int query_glass){\n\n}"}, {"value": "csharp", "text": "C#", "defaultCode": "public class Solution {\n public double ChampagneTower(int poured, int query_row, int query_glass) {\n \n }\n}"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} poured\n * @param {number} query_row\n * @param {number} query_glass\n * @return {number}\n */\nvar champagneTower = function(poured, query_row, query_glass) {\n \n};"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "function champagneTower(poured: number, query_row: number, query_glass: number): number {\n\n};"}, {"value": "php", "text": "PHP", "defaultCode": "class Solution {\n\n /**\n * @param Integer $poured\n * @param Integer $query_row\n * @param Integer $query_glass\n * @return Float\n */\n function champagneTower($poured, $query_row, $query_glass) {\n \n }\n}"}, {"value": "swift", "text": "Swift", "defaultCode": "class Solution {\n func champagneTower(_ poured: Int, _ query_row: Int, _ query_glass: Int) -> Double {\n \n }\n}"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class Solution {\n fun champagneTower(poured: Int, query_row: Int, query_glass: Int): Double {\n \n }\n}"}, {"value": "golang", "text": "Go", "defaultCode": "func champagneTower(poured int, query_row int, query_glass int) float64 {\n \n}"}, {"value": "ruby", "text": "Ruby", "defaultCode": "# @param {Integer} poured\n# @param {Integer} query_row\n# @param {Integer} query_glass\n# @return {Float}\ndef champagne_tower(poured, query_row, query_glass)\n \nend"}, {"value": "scala", "text": "Scala", "defaultCode": "object Solution {\n def champagneTower(poured: Int, query_row: Int, query_glass: Int): Double = {\n \n }\n}"}, {"value": "rust", "text": "Rust", "defaultCode": "impl Solution {\n pub fn champagne_tower(poured: i32, query_row: i32, query_glass: i32) -> f64 {\n \n }\n}"}] | 1
1
1 | {
"name": "champagneTower",
"params": [
{
"name": "poured",
"type": "integer"
},
{
"name": "query_row",
"type": "integer"
},
{
"name": "query_glass",
"type": "integer"
}
],
"return": {
"type": "double"
}
}
| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"]} | ['Dynamic Programming'] |
800 | Similar RGB Color | similar-rgb-color | null | Easy | 18K | 26.5K | 17,956 | 26,504 | 67.7% | [] | [] | Algorithms | null | "#09f166" | {
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| {"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n int id; /* we'll use this field as the key */\r\n char name[10];\r\n UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n struct hash_entry *s;\r\n HASH_FIND_INT(users, &user_id, s);\r\n return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n HASH_DEL(users, user); \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]} | ['Math', 'String', 'Enumeration'] |
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