@[CKsleeping](/user/526029)
```
#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 @ 2022-10-12 13:31:48
@[SZH0523](/user/760455) 谢，能跟我详细讲下我哪里错了吗大佬
by CKsleeping @ 2022-10-12 13:33:13
@[CKsleeping](/user/526029)
额，请问您是新手还是老手，老手我可能讲不了。
by SZH0523 @ 2022-10-12 13:36:10
@[SZH0523](/user/760455) 新
by CKsleeping @ 2022-10-12 13:39:19
```
p=int(s/v);
c=int(s/v)/60;
```
```p```和```c```本来就是```int```型再强制转换数据类型没意义。还有就是，如果h>10的话，你这没有条件，我举个例子，如果```h==12```,你这输出的就是```012```了，你这条件不够，还有p也是同理。
by zz_z2Spider @ 2022-10-12 14:04:57
@[CKsleeping](/user/526029)
新手最好用if else，然后分情况，一一对应，再用printf。
by SZH0523 @ 2022-10-13 12:04:44