我有疑问
```
#include<bits/stdc++.h>
using namespace std;
int main(){
int s, v, h, m = 8 * 60 - 10;
scanf("%d%d", &s, &v);
if(s % v != 0)
m -= s / v + 1;
else
m -= s / v;
h = m / 60;
m %= 60;
if(h < 10){
if(m < 10){
printf("0%d:0%d", h, m);
}
else{
printf("0%d:%d", h, m);
}
}
else{
if(m < 10){
printf("%d:0%d", h, m);
}
else{
printf("%d:%d", h, m);
}
}
return 0;
}
```
by Chenzhifei @ 2023-03-31 19:54:43
i'm a sb!!!
by Chenzhifei @ 2023-03-31 19:55:27