@[NewMinecraft](/user/989044) 由于数据的离谱性，yyy有可能昨天开始赶路。
by dongzirui0817 @ 2024-08-18 11:53:44
@[NewMinecraft](/user/989044)
万一是要在上一天出发才不能迟到呢？
by jiangmuhangpphooga @ 2024-08-18 11:54:26
@[NewMinecraft](/user/989044)
可以这样判断yyy昨天赶路
```c
time=ceil(1.0*s/v)+10;
x=480-time;
if(x<0){
//自己写
}
.............
```
by jiangmuhangpphooga @ 2024-08-18 11:57:46
```cpp
#include<bits/stdc++.h>
using namespace std;
double s,v,m;
int n,a,t,b;
int main(){
cin>>s>>v;
n=8*60+24*60;
t=ceil(s/v)+10;
n-=t;
if(n>=24*60) n-=24*60;
b=n%60;
a=n/60;
if(a<10){
if(b<10)cout<<0<<a<<:0<<b;
else cout<<0<<a<<":"<<b;
}else{
if(b<10) cout<<a<<":0"<<b;
else cout<<a<<":"<<b;
}
return 0;
}
```
以A求关
by jzm_2024 @ 2024-08-18 12:16:02
谢谢各位回答
by NewMinecraft @ 2024-08-19 11:36:34
@[NewMinecraft](/user/989044) ac了吗？
by jiangmuhangpphooga @ 2024-08-19 11:41:24