Question: A 3-way mergesort on an array with N elements works as follows: (a) divide the array into 3 subarrays of size N 3 ; (b)

A 3-way mergesort on an array with N elements works as follows: (a) divide the array into 3 subarrays of size N 3 ; (b) recursively sort the 3 subarrays; (c) merge the 3 subarrays together. Find the time complexity of 3-way mergesort. You may assume that N is a power of 3

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