UVA_12502_Three_Families

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cstring>
#include <string>
#include <cctype>
#include <stack>
#include <queue>
#include <list>
#include <vector>
#include <map>
#include <set>
#include <sstream>
#include <stdlib.h>
#include <cmath>
#define LL unsigned long long
using namespace std;

int main ()
{
    int testCases; scanf ("%d", &testCases);

    while ( testCases-- ) {
        int x, y, z;
        scanf ("%d %d %d", &x, &y, &z);

        int totalWorkHour = x + y;
        int totalWorkMinute = totalWorkHour * 60;
        int eachShareMinute = totalWorkMinute / 3;
        int familyAExtraMinute = x * 60 - eachShareMinute;
        if ( familyAExtraMinute <= 0 ) printf ("0\n");
        else printf ("%d\n", (z * familyAExtraMinute) / eachShareMinute);
    }

    return 0;
}