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题解 | #自守数#

#include <bits/stdc++.h> using namespace std; inline int findk(int& n){ int k = 1; while(k<=n){ k*=10; } return k; }...

2023-04-09

0 229

题解 | #数组分组#

#include <bits/stdc++.h> using namespace std; bool dfs(vector<int>& sel, int target, int k){ if(k>=sel.size()&&target!=0) return f...

2023-04-09

0 312

题解 | #合法IP#

#include <iostream> #include <sstream> using namespace std; bool isnum(string& s){ int n = 0; if(s.empty()) return false; els...

2023-04-09

0 324

题解 | #百钱买百鸡问题#

#include <iostream> using namespace std; int main() { // 鸡公 5 鸡母 3 鸡仔1/3 int n; while (cin >> n) { for(int i=0;i<1...

2023-04-08

0 239

题解 | #矩阵乘法计算量估算#

#include <cctype> #include <iostream> #include <stack> #include <vector> using namespace std; int main() { int n; whi...

2023-04-08

0 240

题解 | #成绩排序#

#include <algorithm> #include <functional> #include <iostream> #include <utility> #include <vector> using namespace std;...

2023-04-08

0 271

题解 | #24点游戏算法#

#include <iostream> #include <vector> using namespace std; bool dfs(vector<int>& arr, vector<bool>& used, int k, double res){...

2023-04-08

0 286

题解 | #字符串排序#

#include <bits/stdc++.h> using namespace std; int main() { string s; while (getline(cin, s)) { string raw_s = s; stable...

2023-04-07

0 253

题解 | #树的子结构#

/* struct TreeNode { int val; struct TreeNode *left; struct TreeNode *right; TreeNode(int x) : val(x), left(NULL), right(NULL) { } };*/ class ...

2023-03-09

2 419

题解 | #剪绳子#

class Solution { public: int cutRope(int number) { vector<int> dp(number + 1, 0); dp[2] = 1; dp[3] = 2; dp[4...

2023-03-08

0 356