```
#include<bits/stdc++.h>
using namespace std;
int main()
{
int s,v;
cin>>s>>v;
int t=ceil(1.0*s/v)+10;
int f=60*(24+8)-t;
int h=(f/60)%24;
int m=f%60;
printf("%02d:%02d",h,m);
return 0;
}
不用那么麻烦。@ takagi73
```
by 违规用户名971024 @ 2024-01-05 12:38:28