@[AthenaChen](/user/1004115)
```cpp
#include <bits/stdc++.h>
using namespace std;
int s, v, cnt, sum_min, hour, minute;
int main()
{
cin >> s >> v;
if (s % v == 0)
cnt = s / v;
else
cnt = s / v + 1;
sum_min = (1910 - cnt) % 1440;
hour = sum_min / 60;
minute = sum_min % 60;
if (0 <= hour && hour <= 9 && 0 <= minute && minute <= 9)
cout << 0 << hour << ":0" << minute << endl;
else if (0 <= hour && hour <= 9 && 10 <= minute && minute <= 59)
cout << 0 << hour << ":" << minute << endl;
else if (10 <= hour && hour <= 23 && 0 <= minute && minute <= 9)
cout << hour << ":0" << minute << endl;
else if (10 <= hour && hour <= 23 && 10 <= minute && minute <= 59)
cout << hour << ":" << minute << endl;
return 0;
}
```
可能是没有模1440吧
by SZ_Metro_Line14 @ 2023-05-07 14:32:24
@[SZ_Metro_Line14](/user/643612) 收到，非常感谢！
by AthenaChen @ 2023-05-07 16:03:41
分钟也要是两位数
by caixukunnb @ 2023-05-07 22:33:41
@[caixukunnb](/user/999132) 感谢！终于发现了自己本来的代码写的是''单引号但改成""双引号之后就过了！
by AthenaChen @ 2023-05-09 22:51:03