What is the example of circular queue?

Traffic system: In a computer-control traffic system, traffic light is one of the best examples of the circular queue.

How is a circular queue represented using an array?

A circular queue is a linear data structure that follows FIFO principle. In circular queue, the last node is connected back to the first node to make a circle. In Circular queue elements are added at the rear and elements are deleted from front. We can represent circular queue using array as well as linked list.

What are the operations performed in circular queue?

Operations On A Circular Queue Enqueue- adding an element in the queue if there is space in the queue. Front- get the first item from the queue. Rear- get the last item from the queue. isEmpty/isFull- checks if the queue is empty or full.

Why is circular queue used?

Circular Queues offer a quick and clean way to store FIFO data with a maximum size. Conserves memory as we only store up to our capacity (opposed to a queue which could continue to grow if input outpaces output.)

What is difference between queue and circular queue?

There are two types of queues as linear and circular queue. The main difference between linear queue and circular queue is that a linear queue arranges data in a sequential order one after the other while a circular queue arranges data similar to a circle by connecting the last element back to the first element.

How do I create a circular queue in CPP?

A queue is an abstract data structure that contains a collection of elements. Queue implements the FIFO mechanism i.e the element that is inserted first is also deleted first. A circular queue is a type of queue in which the last position is connected to the first position to make a circle.

How do you find the number of elements in a circular queue?

If Front > Rear, then no_of_elements_present = N(max-size) – (Front – Rear – 1). As shown in the image below, we subtract the empty spaces (Front – Rear – 1) from the total space, N to get the occupied space or number of elements in the queue. In the figure below, the maximum size of the circular queue, n = 7.

What is circular queue in C?

Also, you will find implementation of circular queue in C, C++, Java and Python. A circular queue is the extended version of a regular queue where the last element is connected to the first element. Thus forming a circle-like structure. Circular queue representation.

Why is circular queue better than linear queue example?

Easier for insertion-deletion: In the circular queue, elements can be inserted easily if there are vacant locations until it is not fully occupied, whereas in the case of a linear queue insertion is not possible once the rear reaches the last index even if there are empty locations present in the queue.