牛客小白月赛21 C

AC代码

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
    long long a,b;
    while(cin>>a>>b)
    {
        long long ans1,ans2;
    a=a-1;
    ans1=a/60*50;
    a=a%60;
    if(a>=50)a=50;
    ans1=ans1+a;
    ans2=b/60*50;
    b=b%60;
    if(b>=50)b=50;
    ans2=ans2+b;
    cout<<ans2-ans1<<endl;
    }

    return 0;
}