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Elements in STL heap are removed in ________________________

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Elements in STL heap are removed in ________________________

(a) decreasing order

(b) increasing order

(c) alternate i.e. once max element then min element

(d) input order

I had been asked this question in an internship interview.

Query is from STL topic in chapter Class Hierarchies, Library & Containers of C++

1 Answer

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Right choice is (a) decreasing order

Easy explanation - C++ STL-heap simulates the max heap i.e. the maximum element is at the top/front of the heap hence on poping we pop the first element which is always the maximum number in the sequence.

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