How can you implement a queue using an array?

Implement enqueue and dequeue at the middle of the array.
Implement enqueue at the end and dequeue at the beginning, shifting elements accordingly.
Use a single pointer for enqueue at the end and dequeue at the beginning.
Use two pointers, one for enqueue and one for dequeue, and shift elements as needed.

A common way to implement a queue using an array is to use two pointers, one for enqueue at the end and one for dequeue at the beginning. Elements are shifted as needed to accommodate new elements and maintain the order of the queue.

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