@[silver_eagle](/user/1399384)
我的AC代码
```cpp
#include<bits/stdc++.h>
using namespace std;
int main()
{
long double s,v;
long int s2=470;
cin>>s>>v;
s=s/v;
int d=s;
if(s>d)
{
d+=1;
}
s2-=d;
int h=s2/60;
int m=s2-h*60;
if(h>=0&&m>=0)
{
if(h<10)
{
cout<<'0'<<h;
}
else
{
cout<<h;
}
cout<<':';
if(m<10)
{
cout<<'0'<<m;
}
else
{
cout<<m;
}
}
else
{
if(m==0)
{
h=24+h;
}
else
{
h=23+h;
m=60+m;
}
if(h<10)
{
cout<<'0'<<h;
}
else
{
cout<<h;
}
cout<<':';
if(m<10)
{
cout<<'0'<<m;
}
else
{
cout<<m;
}
}
}
by AI9527 @ 2024-08-18 16:36:44
@[silver_eagle](/user/1399384)
ac代码：
```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=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;
}
```
求关
by Emil_ @ 2024-08-18 16:38:06
@[Emil_](/user/1393222) 感谢QAQ
by silver_eagle @ 2024-08-18 20:22:33
@[AI9527](/user/1271328) 感谢
by silver_eagle @ 2024-08-18 20:22:53
~~本蒟蒻的有点长，给你看看~~
```cpp
#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
int a,b;
cin>>a>>b;
int h=0,m=0;
int time=a/b+10,lass=0,lass2=0;
if(a%b!=0){
time++;
}
if(time>480){
lass=time-480;
lass2=24*60-lass;
h=floor(lass2/60);
if(h<10){
cout<<"0"<<h<<":";
}
else{
cout<<h<<":";
}
m=lass2-60*h;
if(m<10){
cout<<"0"<<m;
}
else{
cout<<m;
}
}
else{
lass=480-time;
h=floor(lass/60);
if(h<10){
cout<<"0"<<h<<":";
}
else{
cout<<h<<":";
}
m=lass-60*h;
if(m<10){
cout<<"0"<<m;
}
else{
cout<<m;
}
// cout<<h<<":"<<m;
}
return 0;
}
```
by Stars_Shine @ 2024-08-19 14:11:29