@[searchingstar](/user/773129) 唉，帮人改了很多题了，累了，
给你我的AC代码吧
```c
#include<bits/stdc++.h>
using namespace std;
int main(){
int a,b,c,d;
cin>>a>>b;
if(a%b==0){
c=a/b+10;
}
else{
c=a/b+1+10;
}
while(c>=60){
c-=60;
d+=1;
}
c=60-c;
d=8-d;
if(d<0){
d+=24;
}
if(d<10){
cout<<0;
}
cout<<d-1<<":";
if(c<10){
cout<<0;
}
cout<<c;
return 0;
}
```
by _Hu_Tao @ 2022-08-29 12:03:50
@[searchingstar](/user/773129) 求互关QAQ
by _Hu_Tao @ 2022-08-29 12:04:07
@[_Hu_Tao](/user/750558) 老哥的方法确实更好，谢谢
by searchingstar @ 2022-08-29 13:19:17
看了半天，原来是多了一个换行符。。。
by searchingstar @ 2022-08-29 13:19:47