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Which of the following queue container can expand or shrink from both directions?

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Which of the following queue container can expand or shrink from both directions?

(a) deque

(b) queue

(c) priority queue

(d) stack

I had been asked this question during a job interview.

I'd like to ask this question from More Containers topic in chapter Class Hierarchies, Library & Containers of C++

1 Answer

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Best answer
Correct choice is (a) deque

Explanation: Deque is a short form for a doubly ended queue which can be expanded and shrinked from any side of the queue either from the front or from the back.

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