UVA Problem 10790 Solution

Problem Solving, UVa

#include<bits/stdc++.h>

using namespace std;

int main()

{

    long long int  a,b,i=1;

   

        while(cin>>a>>b)

        {

            if(a==0 && b==0) break;

        if(a==0 || b==0)

        {

            printf("Case %lld: 0\n",i);

            continue ;

        }

        printf("Case %lld: %lld\n",i++,((a*b*(a-1)*(b-1))/4));

        }

   

    return 0;

}

 

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