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

main() {

  //Enqueue 10 elements.
  for (int i=0; i<10; i++) {
    enqueue(i);
  }

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

}