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


void linear(int *, int);
void linear_v2(int *, int);


int main(int argc, char *argv[]) {
    int size = atoi(argv[1]);
    int arr[size];

    printf("For an array of size %d ...\n", size);

    clock_t begin = clock();
    linear(arr, size);
    clock_t end = clock();

    printf("Linear version 1 took %lu units of time.\n", end - begin);

    begin = clock();
    linear_v2(arr, size);
    end = clock();

    printf("Linear version 2 took %lu units of time.\n", end - begin);

    return 0;
}