Data Structures and Algorithms The Complete Masterclass - Bubble Sort

The video tutorial introduces the bubble sort algorithm, explaining its fundamental concept of comparing and swapping elements in an array to sort them in ascending order. The instructor provides a step-by-step demonstration of the algorithm using a sample array, highlighting the importance of understanding index positions. The process is broken down into iteration cycles, where the largest unsorted element is moved to its correct position at the end of the list. The tutorial concludes with a brief mention of the next lecture, which will include graphical visualization of the bubble sort process.

What is the primary concept behind the bubble sort algorithm?

• Inserting and deleting

• Merging and sorting

• Comparing and swapping

• Dividing and conquering

In bubble sort, what happens at the end of each cycle?

• All elements are reversed

• The largest unsorted element is moved to the end

• The array is split into two halves

• The smallest element is moved to the beginning

During the first iteration cycle, which elements are compared first?

• Index 0 and Index 1

• Index 1 and Index 2

• Index 3 and Index 4

• Index 2 and Index 3

How does the sorted portion of the list change with each cycle in bubble sort?

• It increases

• It remains the same

• It decreases

• It fluctuates randomly

Why is the algorithm called 'bubble sort'?

• Because it sorts in a circular motion

• Because it pops out the maximum value like a bubble

• Because it pops out the smallest value

• Because it uses bubbles to sort