代码给你
```cpp
#include<bits/stdc++.h>
using namespace std;
int main(){
int s,v,m,x,z;
cin>>s>>v;
m=s/v;
if(m*v<s){
m++;
}
m+=10;
x=7-m/60;
z=60-m%60;
if(x<0){
x+=24;
}
if(z==60){
z=0;
x++;
}
if(x<10){
cout<<0;
}
cout<<x<<":";
if(z<10){
cout<<0;
}
cout<<z;
return 0;
}
by zhangwenyuxuan @ 2023-01-10 09:58:20