测试点信息

Accepted
Accepted
Accepted
Time Limit Exceeded.
Time Limit Exceeded.
Time Limit Exceeded.
Time Limit Exceeded.
Time Limit Exceeded.
Time Limit Exceeded.
Time Limit Exceeded.

请问大家，怎么回事

代码

#include<bits/stdc++.h>
using namespace std;

int s,v,h=7,m=50,mm;
int main(){
    cin>>s>>v;
    m-=s/v;
    m-=1;
    while (m<=0){
    	h-=1;
	}
	if (h<10){
		cout<<0;
	}
	cout<<h<<":";
	if (m<10){
		cout<<0;
	}
	cout<<m;
    return 0;
}