#include <time.h>
#include <iostream>
using namespace std;

int main()
{
clock_t start, end;

start = clock();

//perform calculations for which performance needs to be checked

end = clock();

cout << "Time required for execution: "
<< (double)(end-start)/CLOCKS_PER_SEC
<< " seconds." << "\n\n";
return 0;
}