#include <iostream>
#include <cmath>
using namespace std;
clock_t start, stop;
double czas, j;
int main() {
start = clock();
// start program
for (int i = 0; i < 65000; ++i)
j += i; //sqrt(i);
// end program
stop = clock();
czas = (double) (stop-start) / CLOCKS_PER_SEC;
cout << czas;
return 0;
}
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