Insertion Sort Algorithm Made Easy For Beginners 2023 | Data Structures and Algorithm Guide

🔹 Introduction to Sorting and Insertion Sort Algorithms:

Sorting is a program that helps in maintaining, arranging, and searching for data in a particular order. Insertion Sorting is a type of sorting algorithm used to get numbers, figure locations, and shift data to accommodate new data conforming to a set order.
The array of data can be divided into sorted and unsorted parts. Data from the unsorted part is chosen and positioned in the sorted part.

🔹 Function and Application of Insertion Algorithm:

Arranging an array of size n in ascending order:
1: Iterate from arr[1] to arr[n] over the array.
2: Compare the current element (key) to its predecessor.
3: If the key element is smaller than the element in front of it, compare it to the elements before. Move the greater elements to the right to make space for the smaller elements.

🔹 Time Complexity of Insertion Algorithm:

Insertion Sort is an easy-to-implement, stable sorting algorithm with time complexity of O(n²) in the average and worst case, and O(n) in the best case.

The following topics are covered in this Insertion Sorting video 👇🏼

0:16 What is sorting
1:34 Example of sorting
3:51 Approach 1 of sorting a question
5:30 Steps for insertion short
6:44 Best case and worst case for insertion sort
7:45 Kind of data for the worst case of insertion sort
10:30 Insertion sort without using extra memory

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