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

#define MAX 20

typedef struct l
{
    int i;
    struct l * next;
} LIST;

void fill(int * a);
void lcopy(int * a, LIST ** head, LIST ** tail);
void list(int * a, char * c);

void main(int argc, char * argv[])
{
    srand(time(NULL));

    int a[255];
    int b[255];
    int i = 0;
    int s;

    s = sizeof(LIST);

    LIST * l;
    LIST * head = NULL;
    LIST * tail = NULL;

    // Fill array with random numbers.
    fill(a);

    // Fill array with random numbers.
    fill(b);

    // Copy array to linked list.
    lcopy(a, &head, &tail);

    for(i=0;i<MAX;i++)
    {
        printf("%d\t%d\n", a[i], b[i]);
    }

    /*l = head;

    if(l == NULL)
    {
        printf("Empty\n");
    }
    else
    {
        while(l != NULL)
        {
            printf("%d\n", l->i);
            l=l->next;
        }
    }*/
}

void fill(int * a)
{
    int i = 0;

    for(i=0; i<MAX; i++)
    {
        a[i] = rand() % 10000;
    }
}

void lcopy(int * a, LIST ** head, LIST ** tail)
{
    int i = 0;
    LIST * l;

    for(i=0; i<MAX; i++)
    {
        l = malloc(sizeof(LIST));
        l->i = a[i];

        if(head == NULL)
        {
            *head = l;
            *tail = l;
        }
        else
        {
            *tail->next = l;
            *tail = l;
        }

        l->next = NULL;
    }
}

void list(int * a, char * c)
{
    int i = 0;

    for(i=0; i<strlen(c); i++)
    {
        printf("%c", c[i]);
    }

    for(i=0; i<MAX; i++)
    {
        printf("%d\n", a[i]);
    }
}