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题解 | 礼物清单

#include <iostream> using namespace std; long long p=1e9+7; long long re(long long a,long long b,long long c){ long long d=1; a=a%c; while(b){...

2026-02-25

0 52

题解 | 分割序列

#include <iostream> using namespace std; #include<string> #include<vector> long long p=1e9+7; int main(){ int n; cin>>n; stri...

2026-02-25

1 59

题解 | 【模板】组合数

#include <iostream> using namespace std; long long p=1e9+7; long long w[500005]; long long k[500005]; long long re(long long a,long long b,long...

2026-02-25

1 66

题解 | 墙壁划线

#include <iostream> using namespace std; int main(){ long long a,b,x,y; cin>>a>>b>>x>>y; long long c=a+b; for(long lon...

2026-02-25

1 48

题解 | 放苹果

#include <iostream> using namespace std; long long a[11][11]; int main(){ int m,n; cin>>m>>n; for(int i=1;i<=m;i++){ a[0][i]...

2026-02-24

1 55

题解 | 好多次方

#include <iostream> using namespace std; long long p=1000000007; long long re(long long a,long long b,long long c){ long long d=1; a=a%c; whil...

2026-02-24

1 57

题解 | 子数列求积

#include <iostream> using namespace std; long long p=1000000007; long long re(long long a,long long b,long long c){ long long d=1; a=a%c; whil...

2026-02-24

1 58

题解 | 【模板】分数取模

#include <iostream> using namespace std; long long n=1000000007; long long re(long long a,long long b,long long c){ long long d=1; a=a%c; whil...

2026-02-24

1 43

题解 | 括号匹配深度

#include <iostream> using namespace std; #include<stack> #include<string> #include<algorithm> int main(){ string s; cin>&g...

2026-02-23

1 54

题解 | 素数对

#include <iostream> using namespace std; int a[500005]; long long re(int a){ if(a==1){ return 0; } if(a==2){ retur...

2026-02-23

1 43