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

int mull(int a, int b)
{
  return a * b;
}

int mem_access(int *array, int index)
{
  return array[index];
}

/********************************/
int main()
{
  time_t clock0, clocks;
  int i;
  const int M = 100000000;

  clock0 = clock();
  for (i = 0; i < M; i++)
    mull(80, 23);
  clocks = clock();
  printf("mull   = %fs\n", (float)(clocks - clock0)/CLOCKS_PER_SEC);

  clock0 = clock();
  for (i = 0; i < M; i++)
    mem_access(&i, 0);
  clocks = clock();
  printf("access = %fs\n", (float)(clocks - clock0)/CLOCKS_PER_SEC);

  return 0;
}