Reference

Queue

New

Input	A list of elements.
Output	A queue containing the list of elements with the first element at the beginning of the queue.

Enqueue

Input	A queue and an element.
Output	A new queue with the element added to the end.

Dequeue

Input	A queue.
Output	A new queue with the element at the beginning removed.

Peek

Input	A queue.
Output	The element at the beginning of the queue.

Is Empty

Input	A queue.
Output	True if the queue is empty, false otherwise.

Is Not Empty

Input	A queue.
Output	True if the queue is not empty, false otherwise.

Length

Input	A queue.
Output	The number of elements in the queue.

Reverse

Input	A queue.
Output	A new queue with the elements in reverse order.