[Valmont]

Uhm. I suddenly realize my code might be a tad too much. I didn't know where you stood from reading the first post.
Start with this:

#include <iostream>
#include <ctime>
using namespace std;

int main(int argc, char* argv[])
{
	clock_t start, end;
	long double duration;
	start=clock();
	//TODO: code to test here.
	end=clock();
	duration=(long double)(end-start)/CLOCKS_PER_SEC;
	cout<<"Elapsed time: "<<duration<<endl;

	return 0;	
}