LeetCode 954. Array of Doubled Pairs

 123456789 static auto x = []() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     return 0; }(); class Solution { public:     bool canReorderDoubled([......]

LeetCode 565. Array Nesting

 12345678 int arrayNesting(int* nums, int numsSize) {     int max=INT_MIN;         for(int i=0;imax)max=nowCount;         }     }     return max; }

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LeetCode 441. Arranging Coins

 1234 int arrangeCoins(int n) {     long N=n;     return (-1+sqrt(1+8*N))/2; }

LeetCode 704. Binary Search

 123456789 static auto x = []() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     return 0; }(); class Solution { public:     int search(vector& nums[......]

LeetCode 816. Ambiguous Coordinates

 123456789 static auto x = []() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     return 0; }(); class Solution { private:     inline vector sub(stri[......]

LeetCode 894. All Possible Full Binary Trees

 123456789 static auto x = []() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     return 0; }(); /**  * Definition for a binary tree node.  * struct[......]

LeetCode 797. All Paths From Source to Target

 123456789 static auto x = []() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     return 0; }(); class Solution { public:     vector allPathsSourceTa[......]

LeetCode 432. All O`one Data Structure

 1234567891011 static auto x = []() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     return 0; }(); class Node{ public:     string key;     int cou[......]