您的程序会被这组数据直接卡掉
```1000 1```
by ZQIN_P @ 2022-12-26 20:06:37
输出:```015:10```
by ZQIN_P @ 2022-12-26 20:07:12
@[keyipeng](/user/757214)
by ZQIN_P @ 2022-12-26 20:07:20
记得判断小时是否为2位
by ZQIN_P @ 2022-12-26 20:08:21
```cpp
#include <iostream>
using namespace std;
int main(){
long long s,v;
cin>>s>>v;
bool b=s%v;
long long sum=10+s/v+b;
int x=8,y=0;
bool a=sum%60;
if(sum>=60){
x-=sum/60+a;
}else{
x-=a;
}
if(x<0){
x+=24;
}
if(x<10) cout <<0;
cout <<x;
int a1=sum%60;
cout <<":";
if((60-a1)<10){
cout <<0;
}
cout <<60-a1;
return 0;
}
```
by ZQIN_P @ 2022-12-26 20:09:31
[实测AC](https://www.luogu.com.cn/record/98064851)
by ZQIN_P @ 2022-12-26 20:10:10
你们的头像是同一个系列的吗（
by ListentoRain @ 2022-12-26 20:10:14
@[keyipeng](/user/757214)
by ZQIN_P @ 2022-12-26 20:10:32
@[boringcats](/user/559037) 我都不认得他...(纯属巧合)
by ZQIN_P @ 2022-12-26 20:10:52
不过看起来确实挺像的
by ZQIN_P @ 2022-12-26 20:11:35