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DS & A(Queue)

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|  CHAPTER 14  | In this chapter, our topic of discussion will be the "Queue" Data Structure. But, before we get started, I would recommend you to read the previous chapters on Data Structures & Algorithms  (especially the chapters on Array List , Linked List , Array Stack , and Linked Stack ), that is in case it's your first time visiting my blog. Queue: Just like Stacks, Queues also are a restricted version of List but with a few minor differences compared to Stack. The following are some of the notable characteristics of a Queue: Data can only be inserted from the rear/back. Data insertion is referred to as  ENQUEUE . Data can only be deleted from the front. Data deletion is referred to as  DEQUEUE . Alternatively,  ENQUEUE  and  DEQUEUE  should always be executed on the opposite ends of the Queue. A Queue follows the  FIFO (First In First Out)   principle. The first and the last elements are referred to as FRONT and REAR respectively.

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