![]() ![]() Enqueue: Add an element to the end of the queue.We can implement the queue in any programming language like C, C++, Java, Python or C#, but the specification is pretty much the same.Ī queue is an object (an abstract data structure - ADT) that allows the following operations: In programming terms, putting items in the queue is called enqueue, and removing items from the queue is called dequeue. In the above image, since 1 was kept in the queue before 2, it is the first to be removed from the queue as well. Queue follows the First In First Out (FIFO) rule - the item that goes in first is the item that comes out first. It is similar to the ticket queue outside a cinema hall, where the first person entering the queue is the first person who gets the ticket. ![]()
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