meetforever/GRPO_CL huggingface dataset:
user: Say you have an array for which the ith element is the price of a given stock on day i.

Design an algorithm to find the maximum profit. You may complete as many transactions as you like (i.e., buy one and sell one share of the stock multiple times).

Note: You may not engage in multiple transactions at the same time (i.e., you must sell the stock before you buy again).

Example 1:


Input: [7,1,5,3,6,4]
Output: 7
Explanation: Buy on day 2 (price = 1) and sell on day 3 (price = 5), profit = 5-1 = 4.
             Then buy on day 4 (price = 3) and sell on day 5 (price = 6), profit = 6-3 = 3.


Example 2:


Input: [1,2,3,4,5]
Output: 4
Explanation: Buy on day 1 (price = 1) and sell on day 5 (price = 5), profit = 5-1 = 4.
             Note that you cannot buy on day 1, buy on day 2 and sell them later, as you are
             engaging multiple transactions at the same time. You must sell before buying again.


Example 3:


Input: [7,6,4,3,1]
Output: 0
Explanation: In this case, no transaction is done, i.e. max profit = 0.

Answer: {"fn_name": "maxProfit", "inputs": [[[7, 1, 5, 3, 6, 4]]], "outputs": [7]}
user: Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings.
The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be any subsequence of the other strings.



A subsequence is a sequence that can be derived from one sequence by deleting some characters without changing the order of the remaining elements. Trivially, any string is a subsequence of itself and an empty string is a subsequence of any string.



The input will be two strings, and the output needs to be the length of the longest uncommon subsequence. If the longest uncommon subsequence doesn't exist, return -1.


Example 1:

Input: "aba", "cdc"
Output: 3
Explanation: The longest uncommon subsequence is "aba" (or "cdc"), because "aba" is a subsequence of "aba", but not a subsequence of any other strings in the group of two strings. 



Note:

Both strings' lengths will not exceed 100.
Only letters from a ~ z will appear in input strings.

Answer: {"fn_name": "findLUSlength", "inputs": [["\"aba\"", "\"cdc\""]], "outputs": [5]}
user: Given an array of positive integers arr, calculate the sum of all possible odd-length subarrays.
A subarray is a contiguous subsequence of the array.
Return the sum of all odd-length subarrays of arr.
 
Example 1:
Input: arr = [1,4,2,5,3]
Output: 58
Explanation: The odd-length subarrays of arr and their sums are:
[1] = 1
[4] = 4
[2] = 2
[5] = 5
[3] = 3
[1,4,2] = 7
[4,2,5] = 11
[2,5,3] = 10
[1,4,2,5,3] = 15
If we add all these together we get 1 + 4 + 2 + 5 + 3 + 7 + 11 + 10 + 15 = 58
Example 2:
Input: arr = [1,2]
Output: 3
Explanation: There are only 2 subarrays of odd length, [1] and [2]. Their sum is 3.
Example 3:
Input: arr = [10,11,12]
Output: 66

 
Constraints:

1 <= arr.length <= 100
1 <= arr[i] <= 1000

Answer: {"fn_name": "sumOddLengthSubarrays", "inputs": [[[1, 4, 2, 5, 3]]], "outputs": [58]}
user: An axis-aligned rectangle is represented as a list [x1, y1, x2, y2], where (x1, y1) is the coordinate of its bottom-left corner, and (x2, y2) is the coordinate of its top-right corner. Its top and bottom edges are parallel to the X-axis, and its left and right edges are parallel to the Y-axis.
Two rectangles overlap if the area of their intersection is positive. To be clear, two rectangles that only touch at the corner or edges do not overlap.
Given two axis-aligned rectangles rec1 and rec2, return true if they overlap, otherwise return false.
 
Example 1:
Input: rec1 = [0,0,2,2], rec2 = [1,1,3,3]
Output: true
Example 2:
Input: rec1 = [0,0,1,1], rec2 = [1,0,2,1]
Output: false
Example 3:
Input: rec1 = [0,0,1,1], rec2 = [2,2,3,3]
Output: false

 
Constraints:

rect1.length == 4
rect2.length == 4
-109 <= rec1[i], rec2[i] <= 109
rec1[0] <= rec1[2] and rec1[1] <= rec1[3]
rec2[0] <= rec2[2] and rec2[1] <= rec2[3]

Answer: {"fn_name": "isRectangleOverlap", "inputs": [[[0, 0, 2, 2], [1, 1, 3, 3]]], "outputs": [true]}
user: Given two strings s and t, determine if they are isomorphic.

Two strings are isomorphic if the characters in s can be replaced to get t.

All occurrences of a character must be replaced with another character while preserving the order of characters. No two characters may map to the same character but a character may map to itself.

Example 1:


Input: s = "egg", t = "add"
Output: true


Example 2:


Input: s = "foo", t = "bar"
Output: false

Example 3:


Input: s = "paper", t = "title"
Output: true

Note:
You may assume both s and t have the same length.

Answer: {"fn_name": "isIsomorphic", "inputs": [["\"egg\"", "\"add\""]], "outputs": [true]}
user: You are given an array of strings words and a string chars.
A string is good if it can be formed by characters from chars (each character can only be used once).
Return the sum of lengths of all good strings in words.
 
Example 1:
Input: words = ["cat","bt","hat","tree"], chars = "atach"
Output: 6
Explanation: 
The strings that can be formed are "cat" and "hat" so the answer is 3 + 3 = 6.

Example 2:
Input: words = ["hello","world","leetcode"], chars = "welldonehoneyr"
Output: 10
Explanation: 
The strings that can be formed are "hello" and "world" so the answer is 5 + 5 = 10.

 
Note:

1 <= words.length <= 1000
1 <= words[i].length, chars.length <= 100
All strings contain lowercase English letters only.

Answer: {"fn_name": "countCharacters", "inputs": [[["\"cat\"", "\"bt\"", "\"hat\"", "\"tree\""], "\"atach\""]], "outputs": [10]}
user: Students are asked to stand in non-decreasing order of heights for an annual photo.
Return the minimum number of students that must move in order for all students to be standing in non-decreasing order of height.
Notice that when a group of students is selected they can reorder in any possible way between themselves and the non selected students remain on their seats.
 
Example 1:
Input: heights = [1,1,4,2,1,3]
Output: 3
Explanation: 
Current array : [1,1,4,2,1,3]
Target array  : [1,1,1,2,3,4]
On index 2 (0-based) we have 4 vs 1 so we have to move this student.
On index 4 (0-based) we have 1 vs 3 so we have to move this student.
On index 5 (0-based) we have 3 vs 4 so we have to move this student.

Example 2:
Input: heights = [5,1,2,3,4]
Output: 5

Example 3:
Input: heights = [1,2,3,4,5]
Output: 0

 
Constraints:

1 <= heights.length <= 100
1 <= heights[i] <= 100

Answer: {"fn_name": "heightChecker", "inputs": [[[1, 1, 4, 2, 1, 3]]], "outputs": [3]}
user: Given a non-empty integer array of size n, find the minimum number of moves required to make all array elements equal, where a move is incrementing n - 1 elements by 1.

Example:

Input:
[1,2,3]

Output:
3

Explanation:
Only three moves are needed (remember each move increments two elements):

[1,2,3]  =>  [2,3,3]  =>  [3,4,3]  =>  [4,4,4]

Answer: {"fn_name": "minMoves", "inputs": [[[1, 2, 3]]], "outputs": [3]}
user: You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 stones. The one who removes the last stone will be the winner. You will take the first turn to remove the stones.

Both of you are very clever and have optimal strategies for the game. Write a function to determine whether you can win the game given the number of stones in the heap.

Example:


Input: 4
Output: false 
Explanation: If there are 4 stones in the heap, then you will never win the game;
             No matter 1, 2, or 3 stones you remove, the last stone will always be 
             removed by your friend.

Answer: {"fn_name": "canWinNim", "inputs": [[4]], "outputs": [false]}
user: In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times.
Return the element repeated N times.
 



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


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


Example 3:
Input: [5,1,5,2,5,3,5,4]
Output: 5

 
Note:

4 <= A.length <= 10000
0 <= A[i] < 10000
A.length is even

Answer: {"fn_name": "repeatedNTimes", "inputs": [[[1, 2, 3, 3]]], "outputs": [3]}
user: Every email consists of a local name and a domain name, separated by the @ sign.
For example, in alice@leetcode.com, alice is the local name, and leetcode.com is the domain name.
Besides lowercase letters, these emails may contain '.'s or '+'s.
If you add periods ('.') between some characters in the local name part of an email address, mail sent there will be forwarded to the same address without dots in the local name.  For example, "alice.z@leetcode.com" and "alicez@leetcode.com" forward to the same email address.  (Note that this rule does not apply for domain names.)
If you add a plus ('+') in the local name, everything after the first plus sign will be ignored. This allows certain emails to be filtered, for example m.y+name@email.com will be forwarded to my@email.com.  (Again, this rule does not apply for domain names.)
It is possible to use both of these rules at the same time.
Given a list of emails, we send one email to each address in the list.  How many different addresses actually receive mails? 
 

Example 1:
Input: ["test.email+alex@leetcode.com","test.e.mail+bob.cathy@leetcode.com","testemail+david@lee.tcode.com"]
Output: 2
Explanation: "testemail@leetcode.com" and "testemail@lee.tcode.com" actually receive mails

 
Note:

1 <= emails[i].length <= 100
1 <= emails.length <= 100
Each emails[i] contains exactly one '@' character.
All local and domain names are non-empty.
Local names do not start with a '+' character.

Answer: {"fn_name": "numUniqueEmails", "inputs": [[["\"test.email+alex@leetcode.com\"", "\"test.e.mail+bob.cathy@leetcode.com\"", "\"testemail+david@lee\n.tcode.com\""]]], "outputs": [2]}
user: Find the nth digit of the infinite integer sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ... 

Note:
n is positive and will fit within the range of a 32-bit signed integer (n < 231).


Example 1:

Input:
3

Output:
3



Example 2:

Input:
11

Output:
0

Explanation:
The 11th digit of the sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ... is a 0, which is part of the number 10.

Answer: {"fn_name": "findNthDigit", "inputs": [[3]], "outputs": [3]}
user: Given two integer arrays arr1 and arr2, and the integer d, return the distance value between the two arrays.
The distance value is defined as the number of elements arr1[i] such that there is not any element arr2[j] where |arr1[i]-arr2[j]| <= d.
 
Example 1:
Input: arr1 = [4,5,8], arr2 = [10,9,1,8], d = 2
Output: 2
Explanation: 
For arr1[0]=4 we have: 
|4-10|=6 > d=2 
|4-9|=5 > d=2 
|4-1|=3 > d=2 
|4-8|=4 > d=2 
For arr1[1]=5 we have: 
|5-10|=5 > d=2 
|5-9|=4 > d=2 
|5-1|=4 > d=2 
|5-8|=3 > d=2
For arr1[2]=8 we have:
|8-10|=2 <= d=2
|8-9|=1 <= d=2
|8-1|=7 > d=2
|8-8|=0 <= d=2

Example 2:
Input: arr1 = [1,4,2,3], arr2 = [-4,-3,6,10,20,30], d = 3
Output: 2

Example 3:
Input: arr1 = [2,1,100,3], arr2 = [-5,-2,10,-3,7], d = 6
Output: 1

 
Constraints:

1 <= arr1.length, arr2.length <= 500
-10^3 <= arr1[i], arr2[j] <= 10^3
0 <= d <= 100

Answer: {"fn_name": "findTheDistanceValue", "inputs": [[[4, 5, 8], [10, 9, 1, 8], 2]], "outputs": [2]}
user: A sentence S is given, composed of words separated by spaces. Each word consists of lowercase and uppercase letters only.
We would like to convert the sentence to "Goat Latin" (a made-up language similar to Pig Latin.)
The rules of Goat Latin are as follows:

If a word begins with a vowel (a, e, i, o, or u), append "ma" to the end of the word.
        For example, the word 'apple' becomes 'applema'.
         
If a word begins with a consonant (i.e. not a vowel), remove the first letter and append it to the end, then add "ma".
        For example, the word "goat" becomes "oatgma".
         
Add one letter 'a' to the end of each word per its word index in the sentence, starting with 1.
        For example, the first word gets "a" added to the end, the second word gets "aa" added to the end and so on.

Return the final sentence representing the conversion from S to Goat Latin. 
 
Example 1:
Input: "I speak Goat Latin"
Output: "Imaa peaksmaaa oatGmaaaa atinLmaaaaa"

Example 2:
Input: "The quick brown fox jumped over the lazy dog"
Output: "heTmaa uickqmaaa rownbmaaaa oxfmaaaaa umpedjmaaaaaa overmaaaaaaa hetmaaaaaaaa azylmaaaaaaaaa ogdmaaaaaaaaaa"

 
Notes:

S contains only uppercase, lowercase and spaces. Exactly one space between each word.
1 <= S.length <= 150.

Answer: {"fn_name": "toGoatLatin", "inputs": [["\"I speak Goat Latin\""]], "outputs": ["I\"maa peaksmaaa oatGmaaaa atin\"Lmaaaaa"]}
user: Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the absolute difference between i and j is at most k.


Example 1:


Input: nums = [1,2,3,1], k = 3
Output: true



Example 2:


Input: nums = [1,0,1,1], k = 1
Output: true



Example 3:


Input: nums = [1,2,3,1,2,3], k = 2
Output: false

Answer: {"fn_name": "containsNearbyDuplicate", "inputs": [[[1, 2, 3, 1], 3]], "outputs": [true]}
user: The Tribonacci sequence Tn is defined as follows: 
T0 = 0, T1 = 1, T2 = 1, and Tn+3 = Tn + Tn+1 + Tn+2 for n >= 0.
Given n, return the value of Tn.
 
Example 1:
Input: n = 4
Output: 4
Explanation:
T_3 = 0 + 1 + 1 = 2
T_4 = 1 + 1 + 2 = 4

Example 2:
Input: n = 25
Output: 1389537

 
Constraints:

0 <= n <= 37
The answer is guaranteed to fit within a 32-bit integer, ie. answer <= 2^31 - 1.

Answer: {"fn_name": "tribonacci", "inputs": [[4]], "outputs": [4]}
user: Given an array with n integers, your task is to check if it could become non-decreasing by modifying at most 1 element.



We define an array is non-decreasing if array[i]  holds for every i (1 

Example 1:

Input: [4,2,3]
Output: True
Explanation: You could modify the first 4 to 1 to get a non-decreasing array.



Example 2:

Input: [4,2,1]
Output: False
Explanation: You can't get a non-decreasing array by modify at most one element.



Note:
The n belongs to [1, 10,000].

Answer: {"fn_name": "checkPossibility", "inputs": [[[4, 2, 3]]], "outputs": [true]}
user: Given a sentence that consists of some words separated by a single space, and a searchWord.
You have to check if searchWord is a prefix of any word in sentence.
Return the index of the word in sentence where searchWord is a prefix of this word (1-indexed).
If searchWord is a prefix of more than one word, return the index of the first word (minimum index). If there is no such word return -1.
A prefix of a string S is any leading contiguous substring of S.
 
Example 1:
Input: sentence = "i love eating burger", searchWord = "burg"
Output: 4
Explanation: "burg" is prefix of "burger" which is the 4th word in the sentence.

Example 2:
Input: sentence = "this problem is an easy problem", searchWord = "pro"
Output: 2
Explanation: "pro" is prefix of "problem" which is the 2nd and the 6th word in the sentence, but we return 2 as it's the minimal index.

Example 3:
Input: sentence = "i am tired", searchWord = "you"
Output: -1
Explanation: "you" is not a prefix of any word in the sentence.

Example 4:
Input: sentence = "i use triple pillow", searchWord = "pill"
Output: 4

Example 5:
Input: sentence = "hello from the other side", searchWord = "they"
Output: -1

 
Constraints:

1 <= sentence.length <= 100
1 <= searchWord.length <= 10
sentence consists of lowercase English letters and spaces.
searchWord consists of lowercase English letters.

Answer: {"fn_name": "isPrefixOfWord", "inputs": [["\"i love eating burger\"", "\"burg\""]], "outputs": [-1]}
user: Given a 32-bit signed integer, reverse digits of an integer.

Example 1:


Input: 123
Output: 321


Example 2:


Input: -123
Output: -321


Example 3:


Input: 120
Output: 21


Note:
Assume we are dealing with an environment which could only store integers within the 32-bit signed integer range: [−231,  231 − 1]. For the purpose of this problem, assume that your function returns 0 when the reversed integer overflows.

Answer: {"fn_name": "reverse", "inputs": [[123]], "outputs": [321]}
user: Given alphanumeric string s. (Alphanumeric string is a string consisting of lowercase English letters and digits).
You have to find a permutation of the string where no letter is followed by another letter and no digit is followed by another digit. That is, no two adjacent characters have the same type.
Return the reformatted string or return an empty string if it is impossible to reformat the string.
 
Example 1:
Input: s = "a0b1c2"
Output: "0a1b2c"
Explanation: No two adjacent characters have the same type in "0a1b2c". "a0b1c2", "0a1b2c", "0c2a1b" are also valid permutations.

Example 2:
Input: s = "leetcode"
Output: ""
Explanation: "leetcode" has only characters so we cannot separate them by digits.

Example 3:
Input: s = "1229857369"
Output: ""
Explanation: "1229857369" has only digits so we cannot separate them by characters.

Example 4:
Input: s = "covid2019"
Output: "c2o0v1i9d"

Example 5:
Input: s = "ab123"
Output: "1a2b3"

 
Constraints:

1 <= s.length <= 500
s consists of only lowercase English letters and/or digits.

Answer: {"fn_name": "reformat", "inputs": [["\"a0b1c2\""]], "outputs": [""]}
user: The count-and-say sequence is the sequence of integers with the first five terms as following:

1.     1
2.     11
3.     21
4.     1211
5.     111221



1 is read off as "one 1" or 11.
11 is read off as "two 1s" or 21.
21 is read off as "one 2, then one 1" or 1211.



Given an integer n, generate the nth term of the count-and-say sequence.



Note: Each term of the sequence of integers will be represented as a string.


Example 1:

Input: 1
Output: "1"



Example 2:

Input: 4
Output: "1211"

Answer: {"fn_name": "countAndSay", "inputs": [[1]], "outputs": ["1"]}
user: Given a non-empty array of non-negative integers nums, the degree of this array is defined as the maximum frequency of any one of its elements.
Your task is to find the smallest possible length of a (contiguous) subarray of nums, that has the same degree as nums.

Example 1:

Input: [1, 2, 2, 3, 1]
Output: 2
Explanation: 
The input array has a degree of 2 because both elements 1 and 2 appear twice.
Of the subarrays that have the same degree:
[1, 2, 2, 3, 1], [1, 2, 2, 3], [2, 2, 3, 1], [1, 2, 2], [2, 2, 3], [2, 2]
The shortest length is 2. So return 2.




Example 2:

Input: [1,2,2,3,1,4,2]
Output: 6



Note:
nums.length will be between 1 and 50,000.
nums[i] will be an integer between 0 and 49,999.

Answer: {"fn_name": "findShortestSubArray", "inputs": [[[1, 2, 2, 3, 1]]], "outputs": [2]}
user: Given an unsorted array of integers, find the length of longest continuous increasing subsequence (subarray).


Example 1:

Input: [1,3,5,4,7]
Output: 3
Explanation: The longest continuous increasing subsequence is [1,3,5], its length is 3. 
Even though [1,3,5,7] is also an increasing subsequence, it's not a continuous one where 5 and 7 are separated by 4. 



Example 2:

Input: [2,2,2,2,2]
Output: 1
Explanation: The longest continuous increasing subsequence is [2], its length is 1. 



Note:
Length of the array will not exceed 10,000.

Answer: {"fn_name": "findLengthOfLCIS", "inputs": [[[1, 3, 5, 4, 7]]], "outputs": [3]}
user: The Hamming distance between two integers is the number of positions at which the corresponding bits are different.

Given two integers x and y, calculate the Hamming distance.

Note:
0 ≤ x, y < 231.


Example:

Input: x = 1, y = 4

Output: 2

Explanation:
1   (0 0 0 1)
4   (0 1 0 0)
       ↑   ↑

The above arrows point to positions where the corresponding bits are different.

Answer: {"fn_name": "hammingDistance", "inputs": [[1, 4]], "outputs": [2]}
user: Given an integer n, return the number of trailing zeroes in n!.

Example 1:


Input: 3
Output: 0
Explanation: 3! = 6, no trailing zero.

Example 2:


Input: 5
Output: 1
Explanation: 5! = 120, one trailing zero.

Note: Your solution should be in logarithmic time complexity.

Answer: {"fn_name": "trailingZeroes", "inputs": [[3]], "outputs": [0]}
user: Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -.

Example:
Given a = 1 and b = 2, return 3.


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

Answer: {"fn_name": "getSum", "inputs": [[1, 2]], "outputs": [3]}
user: Write a function to find the longest common prefix string amongst an array of strings.

If there is no common prefix, return an empty string "".

Example 1:


Input: ["flower","flow","flight"]
Output: "fl"


Example 2:


Input: ["dog","racecar","car"]
Output: ""
Explanation: There is no common prefix among the input strings.


Note:

All given inputs are in lowercase letters a-z.

Answer: {"fn_name": "longestCommonPrefix", "inputs": [[["\"flower\"", "\"flow\"", "\"flight\""]]], "outputs": ["\"fl"]}
user: Given a rows x cols matrix mat, where mat[i][j] is either 0 or 1, return the number of special positions in mat.
A position (i,j) is called special if mat[i][j] == 1 and all other elements in row i and column j are 0 (rows and columns are 0-indexed).
 
Example 1:
Input: mat = [[1,0,0],
              [0,0,1],
              [1,0,0]]
Output: 1
Explanation: (1,2) is a special position because mat[1][2] == 1 and all other elements in row 1 and column 2 are 0.

Example 2:
Input: mat = [[1,0,0],
              [0,1,0],
              [0,0,1]]
Output: 3
Explanation: (0,0), (1,1) and (2,2) are special positions. 

Example 3:
Input: mat = [[0,0,0,1],
              [1,0,0,0],
              [0,1,1,0],
              [0,0,0,0]]
Output: 2

Example 4:
Input: mat = [[0,0,0,0,0],
              [1,0,0,0,0],
              [0,1,0,0,0],
              [0,0,1,0,0],
              [0,0,0,1,1]]
Output: 3

 
Constraints:

rows == mat.length
cols == mat[i].length
1 <= rows, cols <= 100
mat[i][j] is 0 or 1.

Answer: {"fn_name": "numSpecial", "inputs": [[[[1, 0, 0], [0, 0, 1], [1, 0, 0], [], []]]], "outputs": [0]}
user: In a list of songs, the i-th song has a duration of time[i] seconds. 
Return the number of pairs of songs for which their total duration in seconds is divisible by 60.  Formally, we want the number of indices i, j such that i < j with (time[i] + time[j]) % 60 == 0.
 
Example 1:
Input: [30,20,150,100,40]
Output: 3
Explanation: Three pairs have a total duration divisible by 60:
(time[0] = 30, time[2] = 150): total duration 180
(time[1] = 20, time[3] = 100): total duration 120
(time[1] = 20, time[4] = 40): total duration 60


Example 2:
Input: [60,60,60]
Output: 3
Explanation: All three pairs have a total duration of 120, which is divisible by 60.


 
Note:

1 <= time.length <= 60000
1 <= time[i] <= 500

Answer: {"fn_name": "numPairsDivisibleBy60", "inputs": [[[30, 20, 150, 100, 40]]], "outputs": [3]}
user: Given an integer array, you need to find one continuous subarray that if you only sort this subarray in ascending order, then the whole array will be sorted in ascending order, too.  

You need to find the shortest such subarray and output its length.

Example 1:

Input: [2, 6, 4, 8, 10, 9, 15]
Output: 5
Explanation: You need to sort [6, 4, 8, 10, 9] in ascending order to make the whole array sorted in ascending order.



Note:

Then length of the input array is in range [1, 10,000].
The input array may contain duplicates, so ascending order here means .

Answer: {"fn_name": "findUnsortedSubarray", "inputs": [[[2, 6, 4, 8, 10, 9, 15]]], "outputs": [5]}
user: Given an integer n, add a dot (".") as the thousands separator and return it in string format.
 
Example 1:
Input: n = 987
Output: "987"

Example 2:
Input: n = 1234
Output: "1.234"

Example 3:
Input: n = 123456789
Output: "123.456.789"

Example 4:
Input: n = 0
Output: "0"

 
Constraints:

0 <= n < 2^31

Answer: {"fn_name": "thousandSeparator", "inputs": [[987]], "outputs": ["987"]}