im-auld/data_structures — pull request #3 by im-auld (2014-06-09 20:38:16+00:00)
Title: Queue

Implemented the code for the Queue data structure. Queue is a First In, First Out data structure. An empty queue is initialized with `q = Queue()`. It has the following methods `enqueue()` (adds an element to the queue), `dequeue()` (removes and returns the value at the head of the queue) and `size()` (which returns the number elements in the queue).