Queue
A queue operates on the FIFO principle, meaning it has a behavior opposite to stacks: The first element added is the first to be removed. This structure is analogous to a line of people waiting for service: The first person in line is the first to be served. Queues are used in various scenarios, including task scheduling, buffering, and managing resources in computer systems.
Queues have several characteristics that influence their behavior and performance:
- FIFO order: The first element inserted into the queue is the first one to be removed.
- Operations at opposite ends: Elements are added at the rear (end) of the queue and removed from the front (beginning) of the queue.
- Dynamic size: Queues can dynamically grow or shrink as elements are enqueued or dequeued. As we enqueue more elements, the size of the queue increases, and as we dequeue elements, the size decreases.
- No random access: Like stacks and unlike arrays, we cannot directly access elements at...
