Key Characteristics of a Deque
- Double-Ended: We can add and remove elements from both ends – the front and the rear.
- Constant Time Complexity: Deques provides O(1) time complexity for inserting and removing elements from both ends.
- Versatility: Deques can be used as a stack (last-in, first-out) or a queue (first-in, first-out) depending on the requirements.
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