https://www.luogu.com.cn/discuss/690650
题解
by hhb200808 @ 2023-11-08 19:37:24
这都不会，自己想！
```c
#include<bits/stdc++.h>
using namespace std;
int main()
{
return 0
}
```
by penghao_love_dxl @ 2023-11-08 21:17:22