Implementing Insertion Sort

The video tutorial explains the insertion sort algorithm, starting with an unsorted list and treating the first element as sorted. It details the process of selecting a key, comparing it with elements in the sorted list, and inserting it in the correct position. The tutorial uses loops to iterate through the list, comparing and shifting elements as needed. The video concludes with a demonstration of the algorithm's functionality and a brief mention of its complexity, preparing viewers for the next lecture.

What is the initial assumption made about the list in the insertion sort algorithm?

• The entire list is sorted.

• The first element is sorted.

• The last element is sorted.

• The entire list is unsorted.

In the insertion sort algorithm, what is the 'key'?

• The first element of the unsorted list.

• The middle element of the list.

• The last element of the list.

• The largest element in the list.

How is the position of the last element in the sorted list determined?

• It is the last element of the entire list.

• It is always the first element.

• It is the same as the key's position.

• It is one less than the key's position.

What type of loop is used to compare the key with elements in the sorted list?

• A while loop.

• A for loop.

• A recursive loop.

• A do-while loop.

What happens when the key is smaller than the last element in the sorted list?

• The loop is terminated.

• The key is inserted immediately.

• The last element is shifted to the right.

• The key is discarded.

What is the condition to exit the while loop in the insertion sort algorithm?

• When the list is fully sorted.

• When the key is equal to the last element.

• When the last element is less than zero.

• When the key is greater than the last element.

What is the final step after exiting the while loop in the insertion sort?

• Inserting the key at the position last plus one.

• Sorting the entire list again.

• Inserting the key at the position of the last element.

• Reversing the entire list.