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题解 | #矩阵最长递增路径#

class Solution { public: bool check(int x,int y,vector<vector<int>>&matrix,vector<vector<bool>>&f) { return x&...

2023-03-18

0 273

题解 | #括号生成#

class Solution { public: void dfs(vector<string>&ans,string&temp,int n,int l,int r) { if(l+r==n) { if(l==r)a...

2023-03-17

0 253

题解 | #N皇后问题#

class Solution { public: bool check(int x,int y,vector<vector<bool>>&f,int n) { bool fl=true; for(int i=1;i<=x;...

2023-03-17

0 337

题解 | #字符串的排列#

class Solution { public: void dfs(set<string>&s,string&str,string &temp,vector<bool>&f) { bool flag=true; for(int ...

2023-03-17

0 343

题解 | #岛屿数量#

class Solution { public: bool check(int x,int y,vector<vector<char> >& grid,vector<vector<bool>>&f) { return x...

2023-03-17

0 324

题解 | #有重复项数字的全排列#

class Solution { public: void dfs(set<vector<int>>&res,vector<int>&num,vector<bool>&fl,vector<int>&temp) { ...

2023-03-17

0 286

题解 | #没有重复项数字的全排列#

class Solution { public: void dfs(vector<int>&num,vector<vector<int>>&res,vector<bool>&fl,vector<int>temp) { ...

2023-03-17

0 275

题解 | #三数之和#

class Solution { public: vector<vector<int> > threeSum(vector<int> &num) { sort(num.begin(),num.end()); set<v...

2023-03-17

0 304

题解 | #缺失的第一个正整数#

class Solution { public: int minNumberDisappeared(vector<int>& nums) { unordered_map<int,bool>hash; for(auto x:nums)ha...

2023-03-17

0 288

题解 | #数组中只出现一次的两个数字#

class Solution { public: vector<int> FindNumsAppearOnce(vector<int>& array) { int cnt=0,pre=1; for(auto x:array)cnt^=x;...

2023-03-17

0 249