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When a circular queue is implemented in an array of the following condition holds when there is only one element in the queue?

When a circular queue is implemented in an array of the following condition holds when there is only one element in the queue? Correct Answer Front=Rear – 1

Concept:

In circular queue, last element’s position is connected with the first element’s position. All other operations are same as queue. It also follows FIFO property (First in first out).

Explanation:

A circular queue is shown as:

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For storing the front and rear in circular queue, we use rear = (rear + 1) % size and front = (front + 1) % size.

A circular queue will be full when Front = -1 and Rear = max – 1.

When a circular queue is implemented in an array, then when there is only one element in the queue, then Front=Rear – 1.

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