meetforever/GRPO_CL huggingface dataset:
user: There are N rooms and you start in room 0.  Each room has a distinct number in 0, 1, 2, ..., N-1, and each room may have some keys to access the next room. 
Formally, each room i has a list of keys rooms[i], and each key rooms[i][j] is an integer in [0, 1, ..., N-1] where N = rooms.length.  A key rooms[i][j] = v opens the room with number v.
Initially, all the rooms start locked (except for room 0). 
You can walk back and forth between rooms freely.
Return true if and only if you can enter every room.


Example 1:
Input: [[1],[2],[3],[]]
Output: true
Explanation:  
We start in room 0, and pick up key 1.
We then go to room 1, and pick up key 2.
We then go to room 2, and pick up key 3.
We then go to room 3.  Since we were able to go to every room, we return true.

Example 2:
Input: [[1,3],[3,0,1],[2],[0]]
Output: false
Explanation: We can't enter the room with number 2.

Note:

1 <= rooms.length <= 1000
0 <= rooms[i].length <= 1000
The number of keys in all rooms combined is at most 3000.

Answer: {"fn_name": "canVisitAllRooms", "inputs": [[[[1], [2], [3], [], [], []]]], "outputs": [false]}
user: Consider the string s to be the infinite wraparound string of "abcdefghijklmnopqrstuvwxyz", so s will look like this: "...zabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcd....".

Now we have another string p. Your job is to find out how many unique non-empty substrings of p are present in s. In particular, your input is the string p and you need to output the number of different non-empty substrings of p in the string s.

Note: p consists of only lowercase English letters and the size of p might be over 10000.

Example 1:

Input: "a"
Output: 1

Explanation: Only the substring "a" of string "a" is in the string s.



Example 2:

Input: "cac"
Output: 2
Explanation: There are two substrings "a", "c" of string "cac" in the string s.



Example 3:

Input: "zab"
Output: 6
Explanation: There are six substrings "z", "a", "b", "za", "ab", "zab" of string "zab" in the string s.

Answer: {"fn_name": "findSubstringInWraproundString", "inputs": [["\"a\""]], "outputs": [2]}
user: Given two integers A and B, return any string S such that:

S has length A + B and contains exactly A 'a' letters, and exactly B 'b' letters;
The substring 'aaa' does not occur in S;
The substring 'bbb' does not occur in S.

 
Example 1:
Input: A = 1, B = 2
Output: "abb"
Explanation: "abb", "bab" and "bba" are all correct answers.


Example 2:
Input: A = 4, B = 1
Output: "aabaa"
 

Note:

0 <= A <= 100
0 <= B <= 100
It is guaranteed such an S exists for the given A and B.

Answer: {"fn_name": "strWithout3a3b", "inputs": [[1, 2]], "outputs": ["bba"]}
user: You are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now you have 2 symbols + and -. For each integer, you should choose one from + and - as its new symbol.
 

Find out how many ways to assign symbols to make sum of integers equal to target S.  


Example 1:

Input: nums is [1, 1, 1, 1, 1], S is 3. 
Output: 5
Explanation: 

-1+1+1+1+1 = 3
+1-1+1+1+1 = 3
+1+1-1+1+1 = 3
+1+1+1-1+1 = 3
+1+1+1+1-1 = 3

There are 5 ways to assign symbols to make the sum of nums be target 3.



Note:

The length of the given array is positive and will not exceed 20. 
The sum of elements in the given array will not exceed 1000.
Your output answer is guaranteed to be fitted in a 32-bit integer.

Answer: {"fn_name": "findTargetSumWays", "inputs": [[[1, 1, 1, 1, 1], 3]], "outputs": [5]}
user: Return the largest possible k such that there exists a_1, a_2, ..., a_k such that:

Each a_i is a non-empty string;
Their concatenation a_1 + a_2 + ... + a_k is equal to text;
For all 1 <= i <= k,  a_i = a_{k+1 - i}.

 
Example 1:
Input: text = "ghiabcdefhelloadamhelloabcdefghi"
Output: 7
Explanation: We can split the string on "(ghi)(abcdef)(hello)(adam)(hello)(abcdef)(ghi)".

Example 2:
Input: text = "merchant"
Output: 1
Explanation: We can split the string on "(merchant)".

Example 3:
Input: text = "antaprezatepzapreanta"
Output: 11
Explanation: We can split the string on "(a)(nt)(a)(pre)(za)(tpe)(za)(pre)(a)(nt)(a)".

Example 4:
Input: text = "aaa"
Output: 3
Explanation: We can split the string on "(a)(a)(a)".

 
Constraints:

text consists only of lowercase English characters.
1 <= text.length <= 1000

Answer: {"fn_name": "longestDecomposition", "inputs": [["\"ghiabcdefhelloadamhelloabcdefghi\""]], "outputs": [9]}
user: We have a collection of rocks, each rock has a positive integer weight.
Each turn, we choose any two rocks and smash them together.  Suppose the stones have weights x and y with x <= y.  The result of this smash is:

If x == y, both stones are totally destroyed;
If x != y, the stone of weight x is totally destroyed, and the stone of weight y has new weight y-x.

At the end, there is at most 1 stone left.  Return the smallest possible weight of this stone (the weight is 0 if there are no stones left.)
 
Example 1:
Input: [2,7,4,1,8,1]
Output: 1
Explanation: 
We can combine 2 and 4 to get 2 so the array converts to [2,7,1,8,1] then,
we can combine 7 and 8 to get 1 so the array converts to [2,1,1,1] then,
we can combine 2 and 1 to get 1 so the array converts to [1,1,1] then,
we can combine 1 and 1 to get 0 so the array converts to [1] then that's the optimal value.

 
Note:

1 <= stones.length <= 30
1 <= stones[i] <= 100

Answer: {"fn_name": "lastStoneWeightII", "inputs": [[[2, 7, 4, 1, 8, 1]]], "outputs": [1]}
user: Given an array of integers A, a move consists of choosing any A[i], and incrementing it by 1.
Return the least number of moves to make every value in A unique.
 
Example 1:
Input: [1,2,2]
Output: 1
Explanation:  After 1 move, the array could be [1, 2, 3].


Example 2:
Input: [3,2,1,2,1,7]
Output: 6
Explanation:  After 6 moves, the array could be [3, 4, 1, 2, 5, 7].
It can be shown with 5 or less moves that it is impossible for the array to have all unique values.

 

Note:

0 <= A.length <= 40000
0 <= A[i] < 40000

Answer: {"fn_name": "minIncrementForUnique", "inputs": [[[1, 2, 2]]], "outputs": [1]}
user: We have n jobs, where every job is scheduled to be done from startTime[i] to endTime[i], obtaining a profit of profit[i].
You're given the startTime , endTime and profit arrays, you need to output the maximum profit you can take such that there are no 2 jobs in the subset with overlapping time range.
If you choose a job that ends at time X you will be able to start another job that starts at time X.
 
Example 1:

Input: startTime = [1,2,3,3], endTime = [3,4,5,6], profit = [50,10,40,70]
Output: 120
Explanation: The subset chosen is the first and fourth job. 
Time range [1-3]+[3-6] , we get profit of 120 = 50 + 70.

Example 2:
 

Input: startTime = [1,2,3,4,6], endTime = [3,5,10,6,9], profit = [20,20,100,70,60]
Output: 150
Explanation: The subset chosen is the first, fourth and fifth job. 
Profit obtained 150 = 20 + 70 + 60.

Example 3:

Input: startTime = [1,1,1], endTime = [2,3,4], profit = [5,6,4]
Output: 6

 
Constraints:

1 <= startTime.length == endTime.length == profit.length <= 5 * 10^4
1 <= startTime[i] < endTime[i] <= 10^9
1 <= profit[i] <= 10^4

Answer: {"fn_name": "jobScheduling", "inputs": [[[1, 2, 3, 3], [3, 4, 5, 6], [50, 10, 40, 70]]], "outputs": [120]}
user: You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed. All houses at this place are arranged in a circle. That means the first house is the neighbor of the last one. Meanwhile, adjacent houses have security system connected and it will automatically contact the police if two adjacent houses were broken into on the same night.

Given a list of non-negative integers representing the amount of money of each house, determine the maximum amount of money you can rob tonight without alerting the police.

Example 1:


Input: [2,3,2]
Output: 3
Explanation: You cannot rob house 1 (money = 2) and then rob house 3 (money = 2),
             because they are adjacent houses.


Example 2:


Input: [1,2,3,1]
Output: 4
Explanation: Rob house 1 (money = 1) and then rob house 3 (money = 3).
             Total amount you can rob = 1 + 3 = 4.

Answer: {"fn_name": "rob", "inputs": [[[2, 3, 2]]], "outputs": [3]}
user: Given an array of positive integers target and an array initial of same size with all zeros.
Return the minimum number of operations to form a target array from initial if you are allowed to do the following operation:

Choose any subarray from initial and increment each value by one.

The answer is guaranteed to fit within the range of a 32-bit signed integer.
 
Example 1:
Input: target = [1,2,3,2,1]
Output: 3
Explanation: We need at least 3 operations to form the target array from the initial array.
[0,0,0,0,0] increment 1 from index 0 to 4 (inclusive).
[1,1,1,1,1] increment 1 from index 1 to 3 (inclusive).
[1,2,2,2,1] increment 1 at index 2.
[1,2,3,2,1] target array is formed.

Example 2:
Input: target = [3,1,1,2]
Output: 4
Explanation: (initial)[0,0,0,0] -> [1,1,1,1] -> [1,1,1,2] -> [2,1,1,2] -> [3,1,1,2] (target).

Example 3:
Input: target = [3,1,5,4,2]
Output: 7
Explanation: (initial)[0,0,0,0,0] -> [1,1,1,1,1] -> [2,1,1,1,1] -> [3,1,1,1,1] 
                                  -> [3,1,2,2,2] -> [3,1,3,3,2] -> [3,1,4,4,2] -> [3,1,5,4,2] (target).

Example 4:
Input: target = [1,1,1,1]
Output: 1

 
Constraints:

1 <= target.length <= 10^5
1 <= target[i] <= 10^5

Answer: {"fn_name": "minNumberOperations", "inputs": [[[1, 2, 3, 2, 1]]], "outputs": [3]}
user: Implement a basic calculator to evaluate a simple expression string.

The expression string contains only non-negative integers, +, -, *, / operators and empty spaces  . The integer division should truncate toward zero.

Example 1:


Input: "3+2*2"
Output: 7


Example 2:


Input: " 3/2 "
Output: 1

Example 3:


Input: " 3+5 / 2 "
Output: 5


Note:


       You may assume that the given expression is always valid.
       Do not use the eval built-in library function.

Answer: {"fn_name": "calculate", "inputs": [["\"3+2*2\""]], "outputs": [7]}
user: Given a string s, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest palindrome you can find by performing this transformation.

Example 1:


Input: "aacecaaa"
Output: "aaacecaaa"


Example 2:


Input: "abcd"
Output: "dcbabcd"

Answer: {"fn_name": "shortestPalindrome", "inputs": [["\"aacecaaa\""]], "outputs": ["\"aaacecaa\"aacecaaa\""]}
user: In a network of nodes, each node i is directly connected to another node j if and only if graph[i][j] = 1.
Some nodes initial are initially infected by malware.  Whenever two nodes are directly connected and at least one of those two nodes is infected by malware, both nodes will be infected by malware.  This spread of malware will continue until no more nodes can be infected in this manner.
Suppose M(initial) is the final number of nodes infected with malware in the entire network, after the spread of malware stops.
We will remove one node from the initial list.  Return the node that if removed, would minimize M(initial).  If multiple nodes could be removed to minimize M(initial), return such a node with the smallest index.
Note that if a node was removed from the initial list of infected nodes, it may still be infected later as a result of the malware spread.
 


Example 1:
Input: graph = [[1,1,0],[1,1,0],[0,0,1]], initial = [0,1]
Output: 0

Example 2:
Input: graph = [[1,0,0],[0,1,0],[0,0,1]], initial = [0,2]
Output: 0

Example 3:
Input: graph = [[1,1,1],[1,1,1],[1,1,1]], initial = [1,2]
Output: 1

 
Note:

1 < graph.length = graph[0].length <= 300
0 <= graph[i][j] == graph[j][i] <= 1
graph[i][i] == 1
1 <= initial.length <= graph.length
0 <= initial[i] < graph.length

Answer: {"fn_name": "minMalwareSpread", "inputs": [[[[1, 1, 0], [1, 1, 0], [0, 0, 1], [], []], [0, 1]]], "outputs": [0]}
user: Given a sentence text (A sentence is a string of space-separated words) in the following format:

First letter is in upper case.
Each word in text are separated by a single space.

Your task is to rearrange the words in text such that all words are rearranged in an increasing order of their lengths. If two words have the same length, arrange them in their original order.
Return the new text following the format shown above.
 
Example 1:
Input: text = "Leetcode is cool"
Output: "Is cool leetcode"
Explanation: There are 3 words, "Leetcode" of length 8, "is" of length 2 and "cool" of length 4.
Output is ordered by length and the new first word starts with capital letter.

Example 2:
Input: text = "Keep calm and code on"
Output: "On and keep calm code"
Explanation: Output is ordered as follows:
"On" 2 letters.
"and" 3 letters.
"keep" 4 letters in case of tie order by position in original text.
"calm" 4 letters.
"code" 4 letters.

Example 3:
Input: text = "To be or not to be"
Output: "To be or to be not"

 
Constraints:

text begins with a capital letter and then contains lowercase letters and single space between words.
1 <= text.length <= 10^5

Answer: {"fn_name": "arrangeWords", "inputs": [["\"Leetcode is cool\""]], "outputs": ["Is cool\" \"leetcode"]}
user: You are given a string s that consists of lower case English letters and brackets. 
Reverse the strings in each pair of matching parentheses, starting from the innermost one.
Your result should not contain any brackets.
 
Example 1:
Input: s = "(abcd)"
Output: "dcba"

Example 2:
Input: s = "(u(love)i)"
Output: "iloveu"
Explanation: The substring "love" is reversed first, then the whole string is reversed.

Example 3:
Input: s = "(ed(et(oc))el)"
Output: "leetcode"
Explanation: First, we reverse the substring "oc", then "etco", and finally, the whole string.

Example 4:
Input: s = "a(bcdefghijkl(mno)p)q"
Output: "apmnolkjihgfedcbq"

 
Constraints:

0 <= s.length <= 2000
s only contains lower case English characters and parentheses.
It's guaranteed that all parentheses are balanced.

Answer: {"fn_name": "reverseParentheses", "inputs": [["\"(abcd)\""]], "outputs": ["\"dcba\""]}
user: Given a string s of '(' , ')' and lowercase English characters. 
Your task is to remove the minimum number of parentheses ( '(' or ')', in any positions ) so that the resulting parentheses string is valid and return any valid string.
Formally, a parentheses string is valid if and only if:

It is the empty string, contains only lowercase characters, or
It can be written as AB (A concatenated with B), where A and B are valid strings, or
It can be written as (A), where A is a valid string.

 
Example 1:
Input: s = "lee(t(c)o)de)"
Output: "lee(t(c)o)de"
Explanation: "lee(t(co)de)" , "lee(t(c)ode)" would also be accepted.

Example 2:
Input: s = "a)b(c)d"
Output: "ab(c)d"

Example 3:
Input: s = "))(("
Output: ""
Explanation: An empty string is also valid.

Example 4:
Input: s = "(a(b(c)d)"
Output: "a(b(c)d)"

 
Constraints:

1 <= s.length <= 10^5
s[i] is one of  '(' , ')' and lowercase English letters.

Answer: {"fn_name": "minRemoveToMakeValid", "inputs": [["\"lee(t(c)o)de)\""]], "outputs": ["\"lee(t(c)o)de\""]}
user: Implement atoi which converts a string to an integer.

The function first discards as many whitespace characters as necessary until the first non-whitespace character is found. Then, starting from this character, takes an optional initial plus or minus sign followed by as many numerical digits as possible, and interprets them as a numerical value.

The string can contain additional characters after those that form the integral number, which are ignored and have no effect on the behavior of this function.

If the first sequence of non-whitespace characters in str is not a valid integral number, or if no such sequence exists because either str is empty or it contains only whitespace characters, no conversion is performed.

If no valid conversion could be performed, a zero value is returned.

Note:


       Only the space character ' ' is considered as whitespace character.
       Assume we are dealing with an environment which could only store integers within the 32-bit signed integer range: [−231,  231 − 1]. If the numerical value is out of the range of representable values, INT_MAX (231 − 1) or INT_MIN (−231) is returned.


Example 1:


Input: "42"
Output: 42


Example 2:


Input: "   -42"
Output: -42
Explanation: The first non-whitespace character is '-', which is the minus sign.
             Then take as many numerical digits as possible, which gets 42.


Example 3:


Input: "4193 with words"
Output: 4193
Explanation: Conversion stops at digit '3' as the next character is not a numerical digit.


Example 4:


Input: "words and 987"
Output: 0
Explanation: The first non-whitespace character is 'w', which is not a numerical 
             digit or a +/- sign. Therefore no valid conversion could be performed.

Example 5:


Input: "-91283472332"
Output: -2147483648
Explanation: The number "-91283472332" is out of the range of a 32-bit signed integer.
             Thefore INT_MIN (−231) is returned.

Answer: {"fn_name": "myAtoi", "inputs": [["\"42\""]], "outputs": [0]}
user: Given a sorted array consisting of only integers where every element appears twice except for one element which appears once. Find this single element that appears only once. 


Example 1:

Input: [1,1,2,3,3,4,4,8,8]
Output: 2



Example 2:

Input: [3,3,7,7,10,11,11]
Output: 10



Note:
Your solution should run in O(log n) time and O(1) space.

Answer: {"fn_name": "singleNonDuplicate", "inputs": [[[1, 1, 2, 3, 3, 4, 4, 8, 8]]], "outputs": [2]}
user: There is an infinitely long street that runs west to east, which we consider as a number line.
There are N roadworks scheduled on this street.
The i-th roadwork blocks the point at coordinate X_i from time S_i - 0.5 to time T_i - 0.5.
Q people are standing at coordinate 0. The i-th person will start the coordinate 0 at time D_i, continue to walk with speed 1 in the positive direction and stop walking when reaching a blocked point.
Find the distance each of the Q people will walk.

-----Constraints-----
 - All values in input are integers.
 - 1 \leq N, Q \leq 2 \times 10^5
 - 0 \leq S_i < T_i \leq 10^9
 - 1 \leq X_i \leq 10^9
 - 0 \leq D_1 < D_2 < ... < D_Q \leq 10^9
 - If i \neq j and X_i = X_j, the intervals [S_i, T_i) and [S_j, T_j) do not overlap.

-----Input-----
Input is given from Standard Input in the following format:
N Q
S_1 T_1 X_1
:
S_N T_N X_N
D_1
:
D_Q

-----Output-----
Print Q lines. The i-th line should contain the distance the i-th person will walk or -1 if that person walks forever.

-----Sample Input-----
4 6
1 3 2
7 13 10
18 20 13
3 4 2
0
1
2
3
5
8

-----Sample Output-----
2
2
10
-1
13
-1

The first person starts coordinate 0 at time 0 and stops walking at coordinate 2 when reaching a point blocked by the first roadwork at time 2.
The second person starts coordinate 0 at time 1 and reaches coordinate 2 at time 3. The first roadwork has ended, but the fourth roadwork has begun, so this person also stops walking at coordinate 2.
The fourth and sixth persons encounter no roadworks while walking, so they walk forever. The output for these cases is -1.
user: Given is an undirected connected graph with N vertices numbered 1 to N, and M edges numbered 1 to M.
The given graph may contain multi-edges but not self loops.
Each edge has an integer label between 1 and N (inclusive).
Edge i has a label c_i, and it connects Vertex u_i and v_i bidirectionally.
Snuke will write an integer between 1 and N (inclusive) on each vertex (multiple vertices may have the same integer written on them) and then keep only the edges satisfying the condition below, removing the other edges.
Condition: Let x and y be the integers written on the vertices that are the endpoints of the edge. Exactly one of x and y equals the label of the edge.
We call a way of writing integers on the vertices good if (and only if) the graph is still connected after removing the edges not satisfying the condition above. Determine whether a good way of writing integers exists, and present one such way if it exists.

-----Constraints-----
 - 2 \leq N \leq 10^5
 - N-1 \leq M \leq 2 \times 10^5
 - 1 \leq u_i,v_i,c_i \leq N
 - The given graph is connected and has no self-loops.

-----Input-----
Input is given from Standard Input in the following format:
N M
u_1 v_1 c_1
\vdots
u_M v_M c_M

-----Output-----
If there is no good way of writing integers, print No.
Otherwise, print N lines. The i-th line should contain the integer written on Vertex i.
Any good way of writing integers will be accepted.

-----Sample Input-----
3 4
1 2 1
2 3 2
3 1 3
1 3 1

-----Sample Output-----
1
2
1

 - We write 1, 2, and 1 on Vertex 1, 2, and 3, respectively.
 - Edge 1 connects Vertex 1 and 2, and its label is 1.
 - Only the integer written on Vertex 1 equals the label, so this edge will not get removed.
 - Edge 2 connects Vertex 2 and 3, and its label is 2.
 - Only the integer written on Vertex 2 equals the label, so this edge will not be removed.
 - Edge 3 connects Vertex 1 and 3, and its label is 3.
 - Both integers written on the vertices differ from the label, so this edge will be removed.
 - Edge 4 connects Vertex 1 and 3, and its label is 1.
 - Both integers written on the vertices equal the label, so this edge will be removed.
 - After Edge 3 and 4 are removed, the graph will still be connected, so this is a good way of writing integers.
user: You are given a string S of length N consisting of lowercase English letters.
Process Q queries of the following two types:
 - Type 1: change the i_q-th character of S to c_q. (Do nothing if the i_q-th character is already c_q.)
 - Type 2: answer the number of different characters occurring in the substring of S between the l_q-th and r_q-th characters (inclusive).

-----Constraints-----
 - N, Q, i_q, l_q, and r_q are integers.
 - S is a string consisting of lowercase English letters.
 - c_q is a lowercase English letter.
 - 1 \leq N \leq 500000
 - 1 \leq Q \leq 20000
 - |S| = N
 - 1 \leq i_q \leq N
 - 1 \leq l_q \leq r_q \leq N
 - There is at least one query of type 2 in each testcase.

-----Input-----
Input is given from Standard Input in the following format:
N
S
Q
Query_1
\vdots
Query_Q

Here, Query_i in the 4-th through (Q+3)-th lines is one of the following:
1 i_q c_q

2 l_q r_q

-----Output-----
For each query of type 2, print a line containing the answer.

-----Sample Input-----
7
abcdbbd
6
2 3 6
1 5 z
2 1 1
1 4 a
1 7 d
2 1 7

-----Sample Output-----
3
1
5

In the first query, cdbb contains three kinds of letters: b , c , and d, so we print 3.
In the second query, S is modified to abcdzbd.
In the third query, a contains one kind of letter: a, so we print 1.
In the fourth query, S is modified to abcazbd.
In the fifth query, S does not change and is still abcazbd.
In the sixth query, abcazbd contains five kinds of letters: a, b, c, d, and z, so we print 5.