#include "queue.h"
#include <stdio.h>

main() {

  //Enqueue elements until the queue is full, that is until enqueue() returns -1.
  for (int i=0; enqueue(i) != -1; i++);

  int element = 0;
  while (dequeue(&element) != -1) {
    //Dequeue all elements in the queue.
    printf("%d\n", element);
  }

}