Friday, July 29, 2016

UVA 11677 - Alarm Clock

#include <bits/stdc++.h>
#define FAST ios_base::sync_with_stdio(0)
using namespace std;
int main()
{
    FAST;
    int h1, m1, h2, m2;
    while(cin>>h1>>m1>>h2>>m2 ){
        if(!h1 && !m1 && !h2 && !m2)break;
        int start = h1*60 + m1;
        int ending = h2*60 + m2;
        if(start < ending)cout<<ending - start<<'\n';
        else if(start == ending )cout<<0<<'\n';
        else cout<<(24*60) - start + ending<<'\n';
    }
    return 0;
}

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