gistfile1.txt

#include <chrono>
#include <stdio.h>
#include <stdlib.h>

// Type your code here, or load an example.
unsigned long sum_array(unsigned long* array, unsigned long size) 
{
    unsigned long sum = 0;
    for (unsigned long i = 0; i < size; ++i)
         sum += array[i];
    return sum;
}

int main()
{
    const unsigned long n = 10000000;
    unsigned long* array = new unsigned long[n];
    srand(42);

    for (unsigned long i = 0; i < n; ++i)
        array[i] = rand();

    auto start = std::chrono::high_resolution_clock::now();
    unsigned long s = sum_array(array, n);
    auto elapsed = std::chrono::high_resolution_clock::now() - start;
    printf("sum: %lu\n", s);
    printf("microseconds: %lu\n", std::chrono::duration_cast<std::chrono::microseconds>(elapsed).count());
    
    return 0;
}