How to output run time in c++ program?

Question

I would like a simple snipplet that shows how to output the running time of a c++ program to compare the performance of different versions

Answer 1

You can use

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

int main() {
clock_t begin = clock();
//Do your stuff here
clock_t end = clock();
double elapsed_secs = double(end - begin) / CLOCKS_PER_SEC;
cout << "Time taken: " << elapsed_secs << endl;
return 0;
}

Answer 2

Just what I needed, thanks!

Answer 3

Hey, Antonio if you use laptop or computer for programing. Use codeblock it console tell you how much your program run.

Answer 4

Thanks for the tip!
I'm only using the mobile app right now, when I will use a PC again I will give it a try.