UVA-Solutions 11677 (Alarm Clock)

Problem Solving, UVa

 

 

#include <bits/stdc++.h>

using namespace std;

int main()

{

    int h1,m1,h2,m2,hr,mr,tr;

    while(cin>>h1>>m1>>h2>>m2)

    {

       

        if(h1==0 && m1==0 && h2==0 && m2==0) break;

        hr=h2-h1;

        mr=m2-m1;

        tr=(hr*60)+mr;

       

        if(tr<0)

        {

            tr+=24*60;

        }

        cout<<tr<<endl;

    }

    return 0;

}

 

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