What are the differences between linear and circular queues?

What are the differences between linear and circular queues?

Linear queues are straightforward, where elements are added at the back and removed from the front. Circular queues, however, connect the end back to the front, allowing for more efficient use of space.

Can you explain how the operations differ in both types?

Sure! In a linear queue, when the rear reaches the end, no more elements can be added unless some are removed. In a circular queue, when the rear reaches the end, it wraps around to the front if there's space available.

Which one is more efficient in terms of memory usage?

Circular queues are generally more efficient because they utilize the available space better by reusing empty slots, while linear queues can lead to wasted space.

Are there any real-world applications for each type?

Yes! Linear queues are often used in scenarios like ticketing systems, while circular queues are used in resource scheduling, like CPU scheduling.