@[TTHermoso](/user/1406504)
##### (AC,求关)
代码（细节挺多的，要考虑挺多）
```
#include<bits/stdc++.h>
using namespace std;
int main(){
int s,v;
cin>>s>>v;
int t=s/v;
if(s/v>3590)return 0;
else if(s%v!=0)t++;
int m=470-t;
if(m<0){
m=1440+m;
int h=m/60,minn=m%60;
if(h<10){
if(minn<10)cout<<0<<h<<":"<<0<<minn;
else cout<<0<<h<<":"<<minn;
}
else{
if(minn<10)cout<<h<<":"<<0<<minn;
else cout<<h<<":"<<minn;
}
}
else{
int h=m/60,minn=m%60;
if(h<10){
if(minn<10)cout<<0<<h<<":"<<0<<minn;
else cout<<0<<h<<":"<<minn;
}
else{
if(minn<10)cout<<h<<":"<<0<<minn;
else cout<<h<<":"<<minn;
}
}
return 0;
}
```
by haimingbei @ 2024-07-25 21:52:04
@[haimingbei](/user/1235026) 求C语言版本
by TTHermoso @ 2024-07-25 21:58:50
@[TTHermoso](/user/1406504) ,求关
```
#include<stdio.h>
int main()
{
int s,v,t;
int h,m;
scanf("%d%d",&s,&v);
t=(s-1)/v+11;
h=7-t/60,m=60-t%60;
if(m==60)h++,m=0;
if(h<0)h+=24;
if(h<10)printf("0%d:",h);
else printf("%d:",h);
if(m<10)printf("0%d",m);
else printf("%d",m);
}
```
by goIdie @ 2024-07-25 22:03:25