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全部文章（共40篇）

题解 | 【模板】序列操作

#include<bits/stdc++.h> using namespace std; int main() { vector<int>vec; int count,x,i,n; string operation; cin>>c...

2025-08-01

0 6

题解 | 校门外的树

#include <iostream> using namespace std; int main() { int L,M; cin>>L>>M; int a[L+1]; for(int i=0;i<L+1;i++){ ...

2025-07-28

0 11

题解 | 无限长正整数排列字符串

#include <iostream> using namespace std; int main() { int n; cin>>n; string s; for(int i=0;i<=n;i++){ s+=to_st...

2025-07-22

0 13

题解 | 添加逗号

#include <iostream> using namespace std; int main() { long long N; cin>>N; string n=to_string(N); int t=n.size()%3; i...

2025-07-21

0 12

题解 | 斗兽棋

#include <iostream> using namespace std; int main() { string s1,s2; cin>>s1>>s2; if(s1=="elephant"&&s...

2025-07-21

0 13

题解 | 二维斐波那契数列

#include <iostream> using namespace std; const int mod=1e9+7; long long a[1005][1005]; int main() { int n,m; cin>>n>>m; ...

2025-07-15

0 16

题解 | 牛牛学数列6

#include <iostream> using namespace std; int main() { int n; cin>>n; int a[n]; a[1]=0; a[2]=1; a[3]=1; for( i...

2025-07-15

0 17

题解 | 牛牛学数列5

#include <iostream> using namespace std; int main() { int n; cin >> n; if (n == 1 || n == 2) { cout << 1 <&...

2025-06-27

0 27

题解 | 牛牛学数列5

#include <iostream> using namespace std; int main() { int n; cin >> n; if (n == 1 || n == 2) { cout << 1 <&...

2025-06-27

0 24

题解 | 牛牛学数列4

#include <iostream> using namespace std; int main() { int n; cin>>n; int sum=0; int dum=0; for (int i=1;i<=n;++i){...

2025-06-27

0 28