Queues come in various forms to solve different problems:
- Simple Queue: The basic FIFO queue where insertion happens at the rear and deletion at the front.
- Circular Queue: A variation where the last position connects back to the first position to utilize memory efficiently.
- Priority Queue: Elements are arranged based on priority rather than arrival order.
- Double-Ended Queue (Deque): Elements can be inserted or deleted from both the front and the rear.