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

// how many bytes is this struct?
// 12 bytes (on my machine)
struct node {
    int data;
    struct node *next;
};

struct node *create_node(int data, struct node *next) {
    // create the node on the heap
    struct node *new_node = malloc(sizeof(struct node));
    
    // assign data and next
    new_node->data = data;
    new_node->next = next;

    return new_node;
}

// will it work if it's empty?
// will it work if first node, a node within a LL, and the tail node
void print_ll(struct node *head) {
    struct node *current = head;
    while(current != NULL) {
        printf("%d -> ", current->data);
        current = current->next;
    }
    printf("NULL \n");
}

int main(void) {

  // creating the first node
  // next can't be uninitialised
  struct node *head = create_node(4, NULL);

  // is redefined to point to the new node, which points to the head defined on line 26
  head = create_node(11, head);
  head = create_node(8, head);

//   print_ll(head);

  print_ll(head->next);

  return 0;

}