meetforever/GRPO_CL huggingface dataset:
user: Given a positive integer num consisting only of digits 6 and 9.
Return the maximum number you can get by changing at most one digit (6 becomes 9, and 9 becomes 6).
 
Example 1:
Input: num = 9669
Output: 9969
Explanation: 
Changing the first digit results in 6669.
Changing the second digit results in 9969.
Changing the third digit results in 9699.
Changing the fourth digit results in 9666. 
The maximum number is 9969.

Example 2:
Input: num = 9996
Output: 9999
Explanation: Changing the last digit 6 to 9 results in the maximum number.
Example 3:
Input: num = 9999
Output: 9999
Explanation: It is better not to apply any change.
 
Constraints:

1 <= num <= 10^4
num's digits are 6 or 9.

Answer: {"fn_name": "maximum69Number", "inputs": [[9669]], "outputs": [9969]}
user: Your friend is typing his name into a keyboard.  Sometimes, when typing a character c, the key might get long pressed, and the character will be typed 1 or more times.
You examine the typed characters of the keyboard.  Return True if it is possible that it was your friends name, with some characters (possibly none) being long pressed.
 
Example 1:
Input: name = "alex", typed = "aaleex"
Output: true
Explanation: 'a' and 'e' in 'alex' were long pressed.

Example 2:
Input: name = "saeed", typed = "ssaaedd"
Output: false
Explanation: 'e' must have been pressed twice, but it wasn't in the typed output.

Example 3:
Input: name = "leelee", typed = "lleeelee"
Output: true

Example 4:
Input: name = "laiden", typed = "laiden"
Output: true
Explanation: It's not necessary to long press any character.

 
Constraints:

1 <= name.length <= 1000
1 <= typed.length <= 1000
The characters of name and typed are lowercase letters.

Answer: {"fn_name": "isLongPressedName", "inputs": [["\"alex\"", "\"aaleex\""]], "outputs": [true]}
user: Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time complexity must be in O(n).

Example 1:

Input: [3, 2, 1]

Output: 1

Explanation: The third maximum is 1.



Example 2:

Input: [1, 2]

Output: 2

Explanation: The third maximum does not exist, so the maximum (2) is returned instead.



Example 3:

Input: [2, 2, 3, 1]

Output: 1

Explanation: Note that the third maximum here means the third maximum distinct number.
Both numbers with value 2 are both considered as second maximum.

Answer: {"fn_name": "thirdMax", "inputs": [[[3, 2, 1]]], "outputs": [1]}
user: Given a string S of lowercase letters, a duplicate removal consists of choosing two adjacent and equal letters, and removing them.
We repeatedly make duplicate removals on S until we no longer can.
Return the final string after all such duplicate removals have been made.  It is guaranteed the answer is unique.
 
Example 1:
Input: "abbaca"
Output: "ca"
Explanation: 
For example, in "abbaca" we could remove "bb" since the letters are adjacent and equal, and this is the only possible move.  The result of this move is that the string is "aaca", of which only "aa" is possible, so the final string is "ca".

 
Note:

1 <= S.length <= 20000
S consists only of English lowercase letters.

Answer: {"fn_name": "removeDuplicates", "inputs": [["\"abbaca\""]], "outputs": ["\"ca\""]}
user: Find the largest palindrome made from the product of two n-digit numbers.
 Since the result could be very large, you should return the largest palindrome mod 1337.

Example:
Input: 2
Output: 987
Explanation: 99 x 91 = 9009, 9009 % 1337 = 987




Note:
The range of n is [1,8].

Answer: {"fn_name": "largestPalindrome", "inputs": [[1]], "outputs": [9]}
user: Given an array of integers arr, and three integers a, b and c. You need to find the number of good triplets.
A triplet (arr[i], arr[j], arr[k]) is good if the following conditions are true:

0 <= i < j < k < arr.length
|arr[i] - arr[j]| <= a
|arr[j] - arr[k]| <= b
|arr[i] - arr[k]| <= c

Where |x| denotes the absolute value of x.
Return the number of good triplets.
 
Example 1:
Input: arr = [3,0,1,1,9,7], a = 7, b = 2, c = 3
Output: 4
Explanation: There are 4 good triplets: [(3,0,1), (3,0,1), (3,1,1), (0,1,1)].

Example 2:
Input: arr = [1,1,2,2,3], a = 0, b = 0, c = 1
Output: 0
Explanation: No triplet satisfies all conditions.

 
Constraints:

3 <= arr.length <= 100
0 <= arr[i] <= 1000
0 <= a, b, c <= 1000

Answer: {"fn_name": "countGoodTriplets", "inputs": [[[3, 0, 1, 1, 9, 7], 7, 2, 3]], "outputs": [4]}
user: Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order.

You may assume no duplicates in the array.

Example 1:


Input: [1,3,5,6], 5
Output: 2


Example 2:


Input: [1,3,5,6], 2
Output: 1


Example 3:


Input: [1,3,5,6], 7
Output: 4


Example 4:


Input: [1,3,5,6], 0
Output: 0

Answer: {"fn_name": "searchInsert", "inputs": [[[1, 3, 5, 6], 5]], "outputs": [2]}
user: Given a positive integer num, write a function which returns True if num is a perfect square else False.


Note: Do not use any built-in library function such as sqrt.


Example 1:

Input: 16
Returns: True



Example 2:

Input: 14
Returns: False



Credits:Special thanks to @elmirap for adding this problem and creating all test cases.

Answer: {"fn_name": "isPerfectSquare", "inputs": [[16]], "outputs": [true]}
user: Given an integer, return its base 7 string representation.

Example 1:

Input: 100
Output: "202"



Example 2:

Input: -7
Output: "-10"



Note:
The input will be in range of [-1e7, 1e7].

Answer: {"fn_name": "convertToBase7", "inputs": [[100]], "outputs": ["202"]}
user: Given an array of integers, find if the array contains any duplicates.

Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct.

Example 1:


Input: [1,2,3,1]
Output: true

Example 2:


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

Example 3:


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

Answer: {"fn_name": "containsDuplicate", "inputs": [[[1, 2, 3, 1]]], "outputs": [true]}
user: Given two strings A and B, find the minimum number of times A has to be repeated such that B is a substring of it. If no such solution, return -1.


For example, with A = "abcd" and B = "cdabcdab". 


Return 3, because by repeating A three times (“abcdabcdabcd”), B is a substring of it; and B is not a substring of A repeated two times ("abcdabcd").


Note:
The length of A and B will be between 1 and 10000.

Answer: {"fn_name": "repeatedStringMatch", "inputs": [["\"abcd\"", "\"cdabcdab\""]], "outputs": [-1]}
user: Given two strings s and t , write a function to determine if t is an anagram of s.

Example 1:


Input: s = "anagram", t = "nagaram"
Output: true


Example 2:


Input: s = "rat", t = "car"
Output: false


Note:
You may assume the string contains only lowercase alphabets.

Follow up:
What if the inputs contain unicode characters? How would you adapt your solution to such case?

Answer: {"fn_name": "isAnagram", "inputs": [["\"anagram\"", "\"nagaram\""]], "outputs": [true]}
user: Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times.

You may assume that the array is non-empty and the majority element always exist in the array.

Example 1:


Input: [3,2,3]
Output: 3

Example 2:


Input: [2,2,1,1,1,2,2]
Output: 2

Answer: {"fn_name": "majorityElement", "inputs": [[[3, 2, 3]]], "outputs": [3]}
user: Given the array of integers nums, you will choose two different indices i and j of that array. Return the maximum value of (nums[i]-1)*(nums[j]-1).
 
Example 1:
Input: nums = [3,4,5,2]
Output: 12 
Explanation: If you choose the indices i=1 and j=2 (indexed from 0), you will get the maximum value, that is, (nums[1]-1)*(nums[2]-1) = (4-1)*(5-1) = 3*4 = 12. 

Example 2:
Input: nums = [1,5,4,5]
Output: 16
Explanation: Choosing the indices i=1 and j=3 (indexed from 0), you will get the maximum value of (5-1)*(5-1) = 16.

Example 3:
Input: nums = [3,7]
Output: 12

 
Constraints:

2 <= nums.length <= 500
1 <= nums[i] <= 10^3

Answer: {"fn_name": "maxProduct", "inputs": [[[3, 4, 5, 2]]], "outputs": [12]}
user: Given an array of integers nums, you start with an initial positive value startValue.
In each iteration, you calculate the step by step sum of startValue plus elements in nums (from left to right).
Return the minimum positive value of startValue such that the step by step sum is never less than 1.
 
Example 1:
Input: nums = [-3,2,-3,4,2]
Output: 5
Explanation: If you choose startValue = 4, in the third iteration your step by step sum is less than 1.
                step by step sum
                startValue = 4 | startValue = 5 | nums
                  (4 -3 ) = 1  | (5 -3 ) = 2    |  -3
                  (1 +2 ) = 3  | (2 +2 ) = 4    |   2
                  (3 -3 ) = 0  | (4 -3 ) = 1    |  -3
                  (0 +4 ) = 4  | (1 +4 ) = 5    |   4
                  (4 +2 ) = 6  | (5 +2 ) = 7    |   2

Example 2:
Input: nums = [1,2]
Output: 1
Explanation: Minimum start value should be positive. 

Example 3:
Input: nums = [1,-2,-3]
Output: 5

 
Constraints:

1 <= nums.length <= 100
-100 <= nums[i] <= 100

Answer: {"fn_name": "minStartValue", "inputs": [[[-3, 2, -3, 4, 2]]], "outputs": [5]}
user: Given two non-negative integers num1 and num2 represented as string, return the sum of num1 and num2.

Note:

The length of both num1 and num2 is < 5100.
Both num1 and num2 contains only digits 0-9.
Both num1 and num2 does not contain any leading zero.
You must not use any built-in BigInteger library or convert the inputs to integer directly.

Answer: {"fn_name": "addStrings", "inputs": [["\"0\"", "\"0\""]], "outputs": ["172"]}
user: Count the number of segments in a string, where a segment is defined to be a contiguous sequence of non-space characters.

Please note that the string does not contain any non-printable characters.

Example:

Input: "Hello, my name is John"
Output: 5

Answer: {"fn_name": "countSegments", "inputs": [["\"Hello, my name is John\""]], "outputs": [5]}
user: Given an array A of integers, for each integer A[i] we may choose any x with -K <= x <= K, and add x to A[i].
After this process, we have some array B.
Return the smallest possible difference between the maximum value of B and the minimum value of B.
 



Example 1:
Input: A = [1], K = 0
Output: 0
Explanation: B = [1]


Example 2:
Input: A = [0,10], K = 2
Output: 6
Explanation: B = [2,8]


Example 3:
Input: A = [1,3,6], K = 3
Output: 0
Explanation: B = [3,3,3] or B = [4,4,4]

 
Note:

1 <= A.length <= 10000
0 <= A[i] <= 10000
0 <= K <= 10000

Answer: {"fn_name": "smallestRangeI", "inputs": [[[1], 0]], "outputs": [0]}
user: Given a binary array, find the maximum number of consecutive 1s in this array.

Example 1:

Input: [1,1,0,1,1,1]
Output: 3
Explanation: The first two digits or the last three digits are consecutive 1s.
    The maximum number of consecutive 1s is 3.



Note:

The input array will only contain 0 and 1.
The length of input array is a positive integer and will not exceed 10,000

Answer: {"fn_name": "findMaxConsecutiveOnes", "inputs": [[[1, 0, 1, 1, 0, 1]]], "outputs": [2]}
user: Given a non-empty array of integers, every element appears twice except for one. Find that single one.

Note:

Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?

Example 1:


Input: [2,2,1]
Output: 1


Example 2:


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

Answer: {"fn_name": "singleNumber", "inputs": [[[2, 2, 1]]], "outputs": [1]}
user: A boomerang is a set of 3 points that are all distinct and not in a straight line.
Given a list of three points in the plane, return whether these points are a boomerang.
 
Example 1:
Input: [[1,1],[2,3],[3,2]]
Output: true


Example 2:
Input: [[1,1],[2,2],[3,3]]
Output: false

 
Note:

points.length == 3
points[i].length == 2
0 <= points[i][j] <= 100

Answer: {"fn_name": "isBoomerang", "inputs": [[[[1, 1], [2, 3], [3, 2], [], []]]], "outputs": [true]}
user: Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits will always have different values.

Example 1:

Input: 5
Output: True
Explanation:
The binary representation of 5 is: 101



Example 2:

Input: 7
Output: False
Explanation:
The binary representation of 7 is: 111.



Example 3:

Input: 11
Output: False
Explanation:
The binary representation of 11 is: 1011.



Example 4:

Input: 10
Output: True
Explanation:
The binary representation of 10 is: 1010.

Answer: {"fn_name": "hasAlternatingBits", "inputs": [[5]], "outputs": [true]}
user: Given an array of integers and an integer k, you need to find the number of unique k-diff pairs in the array. Here a k-diff pair is defined as an integer pair (i, j), where i and j are both numbers in the array and their absolute difference is k.



Example 1:

Input: [3, 1, 4, 1, 5], k = 2
Output: 2
Explanation: There are two 2-diff pairs in the array, (1, 3) and (3, 5).Although we have two 1s in the input, we should only return the number of unique pairs.



Example 2:

Input:[1, 2, 3, 4, 5], k = 1
Output: 4
Explanation: There are four 1-diff pairs in the array, (1, 2), (2, 3), (3, 4) and (4, 5).



Example 3:

Input: [1, 3, 1, 5, 4], k = 0
Output: 1
Explanation: There is one 0-diff pair in the array, (1, 1).



Note:

The pairs (i, j) and (j, i) count as the same pair.
The length of the array won't exceed 10,000.
All the integers in the given input belong to the range: [-1e7, 1e7].

Answer: {"fn_name": "findPairs", "inputs": [[[3, 1, 4, 1, 5], 2]], "outputs": [2]}
user: You're now a baseball game point recorder.



Given a list of strings, each string can be one of the 4 following types:

Integer (one round's score): Directly represents the number of points you get in this round.
"+" (one round's score): Represents that the points you get in this round are the sum of the last two valid round's points.
"D" (one round's score): Represents that the points you get in this round are the doubled data of the last valid round's points.
"C" (an operation, which isn't a round's score): Represents the last valid round's points you get were invalid and should be removed.




Each round's operation is permanent and could have an impact on the round before and the round after.



You need to return the sum of the points you could get in all the rounds.


Example 1:

Input: ["5","2","C","D","+"]
Output: 30
Explanation: 
Round 1: You could get 5 points. The sum is: 5.
Round 2: You could get 2 points. The sum is: 7.
Operation 1: The round 2's data was invalid. The sum is: 5.  
Round 3: You could get 10 points (the round 2's data has been removed). The sum is: 15.
Round 4: You could get 5 + 10 = 15 points. The sum is: 30.



Example 2:

Input: ["5","-2","4","C","D","9","+","+"]
Output: 27
Explanation: 
Round 1: You could get 5 points. The sum is: 5.
Round 2: You could get -2 points. The sum is: 3.
Round 3: You could get 4 points. The sum is: 7.
Operation 1: The round 3's data is invalid. The sum is: 3.  
Round 4: You could get -4 points (the round 3's data has been removed). The sum is: -1.
Round 5: You could get 9 points. The sum is: 8.
Round 6: You could get -4 + 9 = 5 points. The sum is 13.
Round 7: You could get 9 + 5 = 14 points. The sum is 27.



Note:
The size of the input list will be between 1 and 1000.
Every integer represented in the list will be between -30000 and 30000.

Answer: {"fn_name": "calPoints", "inputs": [[["\"5\"", "\"2\"", "\"C\"", "\"D\"", "\"+\""]]], "outputs": [0]}
user: You are given a license key represented as a string S which consists only alphanumeric character and dashes. The string is separated into N+1 groups by N dashes.

Given a number K, we would want to reformat the strings such that each group contains exactly K characters, except for the first group which could be shorter than K, but still must contain at least one character. Furthermore, there must be a dash inserted between two groups and all lowercase letters should be converted to uppercase.

Given a non-empty string S and a number K, format the string according to the rules described above.

Example 1:

Input: S = "5F3Z-2e-9-w", K = 4

Output: "5F3Z-2E9W"

Explanation: The string S has been split into two parts, each part has 4 characters.
Note that the two extra dashes are not needed and can be removed.




Example 2:

Input: S = "2-5g-3-J", K = 2

Output: "2-5G-3J"

Explanation: The string S has been split into three parts, each part has 2 characters except the first part as it could be shorter as mentioned above.



Note:

The length of string S will not exceed 12,000, and K is a positive integer.
String S consists only of alphanumerical characters (a-z and/or A-Z and/or 0-9) and dashes(-).
String S is non-empty.

Answer: {"fn_name": "licenseKeyFormatting", "inputs": [["\"5F3Z-2e-9-w\"", 4]], "outputs": ["\"5-F3Z2-E9W\""]}
user: We have two special characters. The first character can be represented by one bit 0. The second character can be represented by two bits (10 or 11).  

Now given a string represented by several bits. Return whether the last character must be a one-bit character or not. The given string will always end with a zero.

Example 1:

Input: 
bits = [1, 0, 0]
Output: True
Explanation: 
The only way to decode it is two-bit character and one-bit character. So the last character is one-bit character.



Example 2:

Input: 
bits = [1, 1, 1, 0]
Output: False
Explanation: 
The only way to decode it is two-bit character and two-bit character. So the last character is NOT one-bit character.



Note:
1 .
bits[i] is always 0 or 1.

Answer: {"fn_name": "isOneBitCharacter", "inputs": [[[1, 0, 0]]], "outputs": [true]}
user: Given an integer n, return a string with n characters such that each character in such string occurs an odd number of times.
The returned string must contain only lowercase English letters. If there are multiples valid strings, return any of them.  
 
Example 1:
Input: n = 4
Output: "pppz"
Explanation: "pppz" is a valid string since the character 'p' occurs three times and the character 'z' occurs once. Note that there are many other valid strings such as "ohhh" and "love".

Example 2:
Input: n = 2
Output: "xy"
Explanation: "xy" is a valid string since the characters 'x' and 'y' occur once. Note that there are many other valid strings such as "ag" and "ur".

Example 3:
Input: n = 7
Output: "holasss"

 
Constraints:

1 <= n <= 500

Answer: {"fn_name": "generateTheString", "inputs": [[4]], "outputs": ["aaab"]}
user: Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.

Note: For the purpose of this problem, we define empty string as valid palindrome.

Example 1:


Input: "A man, a plan, a canal: Panama"
Output: true


Example 2:


Input: "race a car"
Output: false

Answer: {"fn_name": "isPalindrome", "inputs": [["\"A man, a plan, a canal: Panama\""]], "outputs": [true]}
user: Given an array of positive integers arr,  find a pattern of length m that is repeated k or more times.
A pattern is a subarray (consecutive sub-sequence) that consists of one or more values, repeated multiple times consecutively without overlapping. A pattern is defined by its length and the number of repetitions.
Return true if there exists a pattern of length m that is repeated k or more times, otherwise return false.
 
Example 1:
Input: arr = [1,2,4,4,4,4], m = 1, k = 3
Output: true
Explanation: The pattern (4) of length 1 is repeated 4 consecutive times. Notice that pattern can be repeated k or more times but not less.

Example 2:
Input: arr = [1,2,1,2,1,1,1,3], m = 2, k = 2
Output: true
Explanation: The pattern (1,2) of length 2 is repeated 2 consecutive times. Another valid pattern (2,1) is also repeated 2 times.

Example 3:
Input: arr = [1,2,1,2,1,3], m = 2, k = 3
Output: false
Explanation: The pattern (1,2) is of length 2 but is repeated only 2 times. There is no pattern of length 2 that is repeated 3 or more times.

Example 4:
Input: arr = [1,2,3,1,2], m = 2, k = 2
Output: false
Explanation: Notice that the pattern (1,2) exists twice but not consecutively, so it doesn't count.

Example 5:
Input: arr = [2,2,2,2], m = 2, k = 3
Output: false
Explanation: The only pattern of length 2 is (2,2) however it's repeated only twice. Notice that we do not count overlapping repetitions.

 
Constraints:

2 <= arr.length <= 100
1 <= arr[i] <= 100
1 <= m <= 100
2 <= k <= 100

Answer: {"fn_name": "containsPattern", "inputs": [[[1, 2, 4, 4, 4, 4], 1, 3]], "outputs": [true]}
user: Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.

If the last word does not exist, return 0.

Note: A word is defined as a character sequence consists of non-space characters only.

Example:

Input: "Hello World"
Output: 5

Answer: {"fn_name": "lengthOfLastWord", "inputs": [["\"Hello World\""]], "outputs": [6]}
user: Implement strStr().

Return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.

Example 1:


Input: haystack = "hello", needle = "ll"
Output: 2


Example 2:


Input: haystack = "aaaaa", needle = "bba"
Output: -1


Clarification:

What should we return when needle is an empty string? This is a great question to ask during an interview.

For the purpose of this problem, we will return 0 when needle is an empty string. This is consistent to C's strstr() and Java's indexOf().

Answer: {"fn_name": "strStr", "inputs": [["\"hello\"", "\"ll\""]], "outputs": [-1]}
user: You are climbing a stair case. It takes n steps to reach to the top.

Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?

Note: Given n will be a positive integer.

Example 1:


Input: 2
Output: 2
Explanation: There are two ways to climb to the top.
1. 1 step + 1 step
2. 2 steps


Example 2:


Input: 3
Output: 3
Explanation: There are three ways to climb to the top.
1. 1 step + 1 step + 1 step
2. 1 step + 2 steps
3. 2 steps + 1 step

Answer: {"fn_name": "climbStairs", "inputs": [[2]], "outputs": [2]}
user: Given a string s of lower and upper case English letters.
A good string is a string which doesn't have two adjacent characters s[i] and s[i + 1] where:

0 <= i <= s.length - 2
s[i] is a lower-case letter and s[i + 1] is the same letter but in upper-case or vice-versa.

To make the string good, you can choose two adjacent characters that make the string bad and remove them. You can keep doing this until the string becomes good.
Return the string after making it good. The answer is guaranteed to be unique under the given constraints.
Notice that an empty string is also good.
 
Example 1:
Input: s = "leEeetcode"
Output: "leetcode"
Explanation: In the first step, either you choose i = 1 or i = 2, both will result "leEeetcode" to be reduced to "leetcode".

Example 2:
Input: s = "abBAcC"
Output: ""
Explanation: We have many possible scenarios, and all lead to the same answer. For example:
"abBAcC" --> "aAcC" --> "cC" --> ""
"abBAcC" --> "abBA" --> "aA" --> ""

Example 3:
Input: s = "s"
Output: "s"

 
Constraints:

1 <= s.length <= 100
s contains only lower and upper case English letters.

Answer: {"fn_name": "makeGood", "inputs": [["\"leEeetcode\""]], "outputs": ["\"leetcode\""]}