how do i calculate the time taken to execute this algorithm? import random def insertionSort(arr): for i in range(1, len(arr)): key = arr[i] j = i-1 while j >=0 and key < arr[j] : arr[j+1] = arr[j] j -= 1 arr[j+1] = key rand_list = [] for k in range (0,100): num= random.randint(0,100) rand_list.append(num) insertionSort(rand_list) print ("Sorted array is:") for i in range(len(rand_list)): print ("%d" %rand_list[i])

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Merge sort

Merge Sort recursively sorts a given collection of numbers or elements by using the divide and conquer strategy in less time. It is one of the most used algorithms, with the worst-case time complexity of O (n log n). It was invented by John Von Neumann. The algorithm continuously divides an array into sub-arrays until each sub-array consists of a single element. It then merges those sub-arrays to produce a sorted array.