A queue is a data structure that follows the First-In-First-Out (FIFO) principle. It is similar to a real-life queue, where the first person to join the queue is the first one to be served. In programming, a queue allows you to add elements to the end and remove elements from the front. This makes it useful for implementing algorithms that require a FIFO ordering, such as breadth-first search. Queues are commonly used in operating systems, networking, and other areas of computer science.
A queue is a linear data structure that follows the First In First Out (FIFO) principle. This means that the first element added to the queue will be the first one to be removed. Queues are used in various applications such as process scheduling, breadth-first search, and more.