Which of the following is correct syntax of making heap from a vector v?(a) make_heap(v.elements);(b) make_heap(v);(c) make_heap(v.end(), v.begin());(d) make_heap(v.begin(), v.end());This question was posed to me during an interview.My question is from STL in portion Class Hierarchies, Library & Containers of C++

Which of the following is correct syntax of making heap from a vector

1.	Which of the following is correct syntax of making heap from a vector v?(a) make_heap(v.elements);(b) make_heap(v);(c) make_heap(v.end(), v.begin());(d) make_heap(v.begin(), v.end());This question was posed to me during an interview.My question is from STL in portion Class Hierarchies, Library & Containers of C++
Answer» Correct ANSWER is (d) make_heap(v.begin(), v.end()); The explanation: To construct HEAP USNG the vector elements one need to use the FOLLOWING syntax make_heap(v.begin(), v.end()); which is taking the ITERATOR to first and last element of the vector using which elements of vector can be accessed and heap can be constructed.

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