hheeelpppHomework Answers
Insertion sort is a sorting algorithm that places an unsorted element at its suitable place in each iteration.In Insertion sort, each iteration removes an element from the input data and inserts it into the correct position to sort the list.
If the array is already sorted, it will be the best case for insertion sort and it will take O(n) time to sort.
This is because there will be only one comparison and no moves or swaps since the list is already sorted. so it will go from i =1,......,n-1.
Comparisons in total will be 1+1+.....+1 = n-1. Hence the time complexity will be O(n).
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