#include <iostream>
#include <time.h>
double time_sqrt(int n)
{
clock_t start = clock();
double v = 2.0;
double s = 0.0;
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
s += sqrt(v);
v += 1.0e-10;
}
}
clock_t end = clock();
double diff = double(end - start) / CLOCKS_PER_SEC;
std::cout << "Check: " << s << " Time: " << diff << std::endl;
return diff;
}
double time_normal(int n)
{
clock_t start = clock();
double v = 2.0;
double s = 0.0;
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
s += v;
v += 1.0e-10;
}
}
clock_t end = clock();
double diff = double(end - start) / CLOCKS_PER_SEC;
std::cout << "Check: " << s << " Time: " << diff << std::endl;
return diff;
}
int main()
{
double t1 = time_sqrt(5000);
double t2 = time_normal(5000);
std::cout << "Factor: " << (t1 / t2) << std::endl;
return 0;
}