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Which function is used to check whether a given sequence is heap or not?

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Which function is used to check whether a given sequence is heap or not?

(a) sort_heap()

(b) is_heap()

(c) is_heap_until()

(d) check_heap()

The question was posed to me in semester exam.

I need to ask this question from STL topic in division Class Hierarchies, Library & Containers of C++

1 Answer

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Best answer
The correct answer is (b) is_heap()

The best explanation: C++ STL-heap container provides is_heap() function to check whether a given sequence of elements represents a heap or not. Descending order of elements represents a valid heap.

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