UVa Solution 11677: Alarm Clock

Problem Solving, UVa

 

#include <bits/stdc++.h>

using namespace std;

int main()

{

    int h1,m1,h2,m2;

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

    {

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

        h1*=60;

        h1+=m1;

        h2*=60;

        h2+=m2;

        cout<<abs(h2-h1)<<endl;

    }

}

 

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