DCP-370: Couple Land Devskill Problem Solution

https://www.devskill.com/CodingProblems/ViewProblem/370
#include<bits/stdc++.h>

using namespace std;

int main()

{
   long long n,a;
   cin>>n;
   for(int i=1;i<=n;i++)
   {
       cin>>a;
       cout<<"Case "<<i<<": ";
       if(a%2==0)
       {
           cout<<(a/2)*(a/2)<<endl;
       }
       else{
        cout<<(a/2)*((a/2)+1)<<endl;
       }
   }
   return 0;
}