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DataStructures / Data structures Interview questions

Explain queue in data structure.

A queue or FIFO (first in, first out) is an abstract data type that serves as a collection of elements, with two principal operations: enqueue , the process of adding an element to the collection.(The element is added from the rear side) and dequeue , the process of removing the first element that was added. (The element is removed from the front side). It can be implemented by using both array and linked list.

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