@[xzc_yhxr](/user/1072970)
```
#include<cmath>
#include<iostream>
using namespace std;
int main()
{
int s,v,h,m,a;
cin>>s>>v;
a=1910-ceil((double)s/(double)v);
h=a/60;
m=a%60;
if(h>=24)h-=24;
if(h<10)cout<<0;
cout<<h<<":";
if(m<10)cout<<0;
cout<<m<<endl;
return 0;
}
```
by GoodLuckCat @ 2023-08-28 12:23:00
我的
by GoodLuckCat @ 2023-08-28 12:23:23
我写过一篇这道题的题解，你可以看看有没有帮助ヾ(◍°∇°◍)ﾉﾞ
[P5707题解](https://www.luogu.com.cn/blogAdmin/article/edit/625109)
by LuoNing__qaq @ 2023-08-28 14:53:24