else第二个大括号被吞了，原来是有的
by _nonsense @ 2022-10-10 20:42:45
@[zhenshidada](/user/824349)
```
#include<bits/stdc++.h>
using namespace std;
signed main()
{
int s,u,t;
scanf ("%d%d",&s,&u);
if ( s%u == 0)
{
t=s/u;
t+=9;
}
else
{
t=s/u;
t+=10;
}
int h;
int m;
h = 7;
m = 59;
while (t != 0)
{
if (m != 0)
{
m--;
}
else
{
if (h!=0)
{
h--;
m=59;
}
else
{
h=23;
m=59;
}
}
t--;
}
int a,b;
int c,d;
a = h/10;
b = h-(10*(h/10));
c = m/10;
d = m-(10*(m/10));
printf ("%d%d:%d%d",a,b,c,d);
return 0;
}
```
by SZH0523 @ 2022-10-10 20:49:08
@[zhenshidada](/user/824349) 精度错误,如果除出来是个小数就还多需要一分钟，也就是t--
```cpp
# include <stdio.h>
#include<cmath>
int main (){
int s, v, h, m, q;
int t;
scanf("%d %d", &s, &v);
t = 470 - ceil(s*1.0/v);
q = (int) t;
if (q >= 0){
h = q / 60;
m = q % 60;
}else{
int p = 1440 + q;
h = p / 60;
m = p % 60;
}
printf("%02d:%02d", h, m);
return 0;
}
```
by Da_un @ 2022-10-10 21:04:08
@[Da_un](/user/311037) 嗷！懂了，谢谢你
by _nonsense @ 2022-10-10 21:12:47
@[SZH0523](/user/760455)
没学c++，但勉强看懂，谢谢你
by _nonsense @ 2022-10-10 21:13:56