Leetcode Problem 641. Design Circular Deque

641. Design Circular Deque

Leetcode Solutions

Initialize the deque with a fixed-size array, front pointer, and rear pointer.
For insertFront, decrement front circularly and place the new value at front index.
For insertLast, increment rear circularly and place the new value at rear index.
For deleteFront, remove the value at front index and increment front circularly.
For deleteLast, remove the value at rear index and decrement rear circularly.
For getFront, return the value at front index.
For getRear, return the value at rear index.
For isEmpty, check if both front and rear are -1.
For isFull, check if the next position of rear is front.

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