Insertion Sort

The video tutorial introduces the concept of insertion sort, a sorting algorithm that involves dividing a list into sorted and unsorted parts. The instructor provides two examples to demonstrate the process of inserting elements from the unsorted list into the sorted list by comparing and positioning them correctly. The tutorial concludes with a brief mention of the next lecture, which will cover coding the insertion sort algorithm.

What is the main concept behind insertion sort as described in the lecture?

How do you determine where to insert an element in the sorted list during the insertion sort process?

Explain the process of inserting the number 1 into the sorted list as shown in the example.

What challenges are presented when dealing with both sorted and unsorted lists in insertion sort?

Describe the steps taken to insert the number 5 into the sorted list in the second example.