Trace operations on an empty queue: Enqueue : queue is
Enqueue : queue is
Enqueue : queue is
Dequeue: returns , queue is
Front: returns , queue stays
Dequeue: returns , queue is
Elements leave in the order , the same order they arrived. That's FIFO.
##### ###### ##### ### # # ### # # ###### ## ## ## ## ## ## ## # # # # # ## ##### #### ##### # # # # # # # #### ## # ## ## ## ## # # # # # ## ## # ###### ## ### # ### # ######
$ curl repovive.com/roadmaps/data-structures/queues-deques/queue-visualization
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