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The amortized time efficiency for performing deletion of a minimum element is?

(a) O(N)

(b) O(log N)

(c) O(N^2)

(d) O(M log N)

I need to ask this question from Heap in chapter Heap of Data Structures & Algorithms I

I have been asked this question in semester exam.

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The correct answer is (b) O(log N)

Best explanation: The amortized time efficiency for performing deletion of a minimum element is mathematically found to be O(log N).

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