#include<iostream>
#include<cstdio>
#include<string>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<stack>
#include<queue>
#include<vector>
#include<set>
#include<map>
#define INF 0x3f3f3f3f
#define LL long long

using namespace std;
#define IOS std::ios::sync_with_stdio(false);std::cin.tie(0);
const int N =100 ;

 signed main(){
 	IOS
 }

 

 

posted on 2023-05-02 13:22  towboat  阅读(8)  评论(0)    收藏  举报