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全部文章（共32篇）

题解 | 无法吃午餐的学生数量

class Solution { public: /** * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可 * * * @param students int整型vector * @param sandwich...

2025-08-27

0 30

题解 | 栈和排序

#include <bits/stdc++.h> using namespace std; int main() { int n; cin>>n; vector<int> vec(n),re; for(int i=0;i<n...

2025-08-27

0 21

题解 | 【模板】序列操作

#include <iostream> #include<algorithm> #include<vector> using namespace std; int main() { int q; cin>>q; vector&...

2025-08-24

0 24

题解 | 两直线交点

point findMeetingPoint(line line_A,line line_B){ point re(-1,-1); double a1,a2,b1,b2,c1,c2; a1=line_A.point_A.y-line_A.point_B.y; a2=l...

2025-08-24

0 25

题解 | 三角形面积

double getArea(triangle T) { double a = sqrt((T.a.x - T.b.x) * (T.a.x - T.b.x) + (T.a.y - T.b.y) * (T.a.y - T.b.y)); doubl...

2025-08-24

0 33

题解 | 点到直线距离

double getDistance(point P, line L){ int a=L.point_A.y-L.point_B.y; int b=L.point_B.x-L.point_A.x; int c=L.point_A.x*L.point_B.y-L.point_A...

2025-08-24

0 28

题解 | 凯撒解密

class Solution { public: string decodeWangzai(string password, int n) { for(char& ch:password) ch=(ch-'a'+26-n%26)%26+'a';...

2025-08-24

0 25

题解 | 牛牛的考试

#include <iostream> #include<vector> #include<string> using namespace std; int main() { int t; cin >> t; while (t...

2025-08-24

1 50

题解 | 无限长正整数排列字符串

#include <iostream> #include<string> using namespace std; int main() { int n,k=1; cin>>n; string s=""; wh...

2025-08-23

0 29

题解 | 添加逗号

#include <iostream> #include<string> using namespace std; int main() { string s; cin>>s; int n=s.size()-1; for(int i...

2025-08-23

0 28