What is the average number of comparisons used to heap sort a random permutation of N distinct items?(a) 2N log N-O(N)(b) 2N log N-O(N log N)(c) 2N log N-O(N log log N)(d) 2N log N-O(log N)I got this question in an interview for job.This question is from Heapsort topic in division Sorting of Data Structures & Algorithms II

What is the average number of comparisons used to heap sort a random p

1.	What is the average number of comparisons used to heap sort a random permutation of N distinct items?(a) 2N log N-O(N)(b) 2N log N-O(N log N)(c) 2N log N-O(N log log N)(d) 2N log N-O(log N)I got this question in an interview for job.This question is from Heapsort topic in division Sorting of Data Structures & Algorithms II
Answer» CORRECT answer is (c) 2N log N-O(N log log N) Explanation: According to a theorem, the average NUMBER of COMPARISONS used to heap sort a random PERMUTATION of N distinct items is found to be 2N log N-O(N log log N).

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