What is a Circular Queue?
A Circular Queue is an extended version of a normal queue where the last element of the queue is connected to the first element of the queue forming a circle.
The operations are performed based on FIFO (First In First Out) principle. It is also called ‘Ring Buffer’.
In a normal Queue, we can insert elements until queue becomes full. But once queue becomes full, we can not insert the next element even if there is a space in front of queue.
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