Time Complexity of Huffman Coding

#1

This is the answer given, O(N(logN)^2). What is the explanation behind this time complexity ?

#2

Hello @vineethm1627 the time complexity for that must be O(nlogn) where n is the number of unique characters. If there are n nodes, extractMin() is called 2*(n – 1) times. extractMin() takes O(logn) time as it calles minHeapify(). So, overall complexity is O(nlogn).

#3

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