#include <stdio.h>

#define SIZE 10

void init_arrays(int *a, int *b, int length);
void copy_array(int *array1, int *array2, int length);
void print_array(int *array, int length);
void print_arrays(int *a, int *b, int length);

int main(void) 
{  
    int a[SIZE];
    int b[SIZE];

    init_arrays(a, b, SIZE);    

    printf("Initial values\n");
    print_arrays(a, b, SIZE);

    copy_array(a, b, SIZE);

    printf("\nFinal values\n");
    print_arrays(a, b, SIZE);

    printf("\n");
}

void init_arrays(int *a, int *b, int length)
{
    int i;

    for(i = 0; i < length; i++) {
        a[i] = i*i;
        b[i] = 37;
    }
}

void print_arrays(int *a, int *b, int length) 
{
    printf("a: ");
    print_array(a, length);
    printf("\nb: ");
    print_array(b, length);
}

void print_array(int *array, int length)
{
    int i;

    for(i = 0; i < length; i++)
        printf("%3d", array[i]);
}

/* copy array1 to array2 */
void copy_array(int *array1, int *array2, int length) 
{
    int i;

    for(i = 0; i < length; i++)
        array2[i] = array1[i];
}