Understanding Insertion Sort

The video tutorial explains the insertion sort algorithm, highlighting its inefficiency compared to modern algorithms but emphasizing its educational value. It describes the process of sorting a list by dividing it into sorted and unsorted parts, moving elements one by one to their correct positions. The tutorial uses a step-by-step approach to demonstrate how numbers are sorted, emphasizing the importance of understanding different sorting methods. The video concludes by noting that insertion sort can be applied to various data types, not just numbers.

What is a key reason why insertion sort is not commonly used in modern computing?

• It is too complex to implement.

• It is not efficient for large datasets.

• It requires specialized hardware.

• It can only sort numbers.

In insertion sort, how is the list initially divided?

• Into odd and even numbers.

• Into ascending and descending order.

• Into two equal parts.

• Into sorted and unsorted parts.

What is the purpose of the wavy line in insertion sort?

• To highlight errors in sorting.

• To mark the largest number.

• To indicate the end of the list.

• To separate sorted and unsorted parts.

What happens to the number 43 in the initial step of sorting?

• It is removed from the list.

• It becomes part of the sorted list.

• It is swapped with 26.

• It is moved to the unsorted part.

How does the number 26 find its correct position in the sorted list?

• It is placed randomly.

• It is compared with every other number.

• It swaps back one by one.

• It jumps directly to the front.

Why does the number 18 not jump directly to the front of the list?

• It is larger than all other numbers.

• It is part of the unsorted list.

• It is already in the correct position.

• It needs to swap back one by one.

What is the final step in the insertion sort process?

• All numbers are removed from the list.

• The wavy line is moved to the end of the list.

• The list is divided again.

• The numbers are converted to letters.

What indicates that the list is fully sorted in insertion sort?

• The wavy line is at the start.

• All numbers are in descending order.

• The list is divided into three parts.

• The wavy line has moved to the end.

How does insertion sort handle different data types?

• It only works with numbers.

• It can sort any data type that can be ordered.

• It requires conversion to numbers first.

• It only works with letters.

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