@[Flame_Gundam](/user/965128) 悬棺吗？
```cpp
#include<bits/stdc++.h>
using namespace std;
int main(){
int s,v,ans;
cin>>s>>v;
if(s%v==0) ans=s/v+10;
else ans=s/v+11;
ans=480-ans;
if(ans>=0){
if(ans/60<10) cout<<"0"<<ans/60<<":";
else cout<<ans/60<<":";
if(ans%60<10) cout<<"0"<<ans%60;
else cout<<ans%60;
}
else{
ans+=60*24;
if(ans/60<10) cout<<"0"<<ans/60<<":";
else cout<<ans/60<<":";
if(ans%60<10) cout<<"0"<<ans%60;
else cout<<ans%60;
}
return 0;
}
```
by Apress @ 2023-06-25 21:55:07
@[Flame_Gundam](/user/965128) 你样例都没过啊，没补0
by Apress @ 2023-06-25 21:56:10
@[Apress](/user/384419) 666
by Flame_Gundam @ 2023-06-25 21:56:22
@[Flame_Gundam](/user/965128) 666是什么意思啊
by Apress @ 2023-06-25 21:57:34
@[Apress](/user/384419) 你是在装傻？
挖坟挖坟
by C_ccx_N @ 2023-06-26 14:29:27
???
by WSZZ666 @ 2023-07-07 12:55:04