Problem #6

#include <iostream>
#include <string>
#include <ctime>
#include <cmath>

using namespace std;

int main()
{
    clock_t start = clock();
    int total = 0;
    int holder1 = 0;
    int holder2 = 0;

    for (unsigned int i = 1; i <= 100; i++)
    {
        holder1 += pow (static_cast<double> (i), 2);
        holder2 += i;
    }

    total = pow (static_cast<double> (holder2),2) - holder1;

    cout << total << endl 
         << "Process took " << (static_cast<double> (clock()) - start) / CLOCKS_PER_SEC << " seconds." << endl;

    system ("pause");
    return 0;
}