Queue is a FIFO (first in first out-items placed at the top can be accessed first) structure, which can be found in many programming languages. This structure is called a "queue" because it looks like a queue in the real world-people are waiting in a queue. Using queue, you can give following commands -
- Enqueue: Insert an item at the end of the queue.
- Dequeue-Remove items from the top of the queue.
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