How can I visualize circular queues in programming?

How can I visualize circular queues in programming?

You can visualize circular queues using diagrams or animations that show how elements are added and removed.

Can you explain how the enqueue and dequeue operations work?

Sure! In a circular queue, enqueue adds an element at the rear and wraps around if the end is reached, while dequeue removes from the front.

What are the advantages of using a circular queue?

Circular queues use space efficiently and avoid the problem of wasted space that occurs in linear queues.

Can you provide a code example for implementing a circular queue?

Absolutely! Here's a simple implementation in Python:

class CircularQueue:
    def __init__(self, size):
        self.size = size
        self.queue = [None] * size
        self.front = self.rear = -1

    def enqueue(self, value):
        if (self.rear + 1) % self.size == self.front:
            print('Queue is full')
            return
        if self.front == -1:
            self.front = 0
        self.rear = (self.rear + 1) % self.size
        self.queue[self.rear] = value

    def dequeue(self):
        if self.front == -1:
            print('Queue is empty')
            return
        value = self.queue[self.front]
        if self.front == self.rear:
            self.front = self.rear = -1
        else:
            self.front = (self.front + 1) % self.size
        return value