In a binary max heap containing n numbers, the smallest element can be found in ______ time.  

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UGC NET Computer Science (Paper 2) 2020 Official Paper
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  1. O(n)
  2. O(log2 n)
  3. O(1)
  4. O(log2 log2 n)

Answer (Detailed Solution Below)

Option 1 : O(n)
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UGC NET Paper 1: Held on 21st August 2024 Shift 1
50 Qs. 100 Marks 60 Mins

Detailed Solution

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The correct answer is option 1.

Key Points

  • The heap's smallest values will always be present on the last level or second last of the heap in a MAX heap, and the time complexity of reaching the last level of the heap is O(n).
  • We must use a linear search to search all of the elements in order to find the smallest element and heap.
  • It will take O(n) time to traverse all of the elements using linear search. 

Hence the correct answer is O(n).

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