Selection Sort

The video tutorial explains the selection sort algorithm, contrasting it with bubble sort. It details the process of finding the smallest element and placing it at the beginning of the list, reducing unnecessary swaps. The tutorial provides a step-by-step example, highlighting the importance of maintaining a sorted and unsorted section of the list. The video concludes with a reminder to focus on the minimum value and the iterative nature of the algorithm.

How does selection sort differ from bubble sort in terms of element comparison?

• Selection sort picks the smallest element and places it at the beginning.

• Selection sort swaps elements after each comparison.

• Selection sort picks the largest element and places it at the end.

• Selection sort compares each element with the next one.

What is the main advantage of selection sort over bubble sort?

• It sorts the list in reverse order.

• It reduces the number of swaps.

• It reduces the number of comparisons.

• It requires more swaps.

During the selection sort process, when do we perform a swap?

• Only after finding the smallest element in the unsorted list.

• After comparing the first two elements.

• At the end of the sorting process.

• After each comparison.

What happens to the sorted and unsorted parts of the list after each iteration in selection sort?

• The sorted part decreases, and the unsorted part increases.

• The sorted part remains the same, and the unsorted part decreases.

• The sorted part increases, and the unsorted part decreases.

• Both parts remain the same.

What should be kept in mind while implementing selection sort?

• Use index values to track the minimum element.

• Ignore the sorted part of the list.

• Always swap elements immediately after comparison.

• Sort the list in descending order.