Question: A deque (double-ended queue) is a data structure with operations addFirst, remove- First, addLast, removeLast, and size. Implement a deque as a circular array, so

A deque (double-ended queue) is a data structure with operations addFirst, remove- First, addLast, removeLast, and size. Implement a deque as a circular array, so that these operations have amortized constant time.

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