Bubble Sort Algorithm

Are you familiar with the concept of sorting algorithms? If not, don’t worry! In this blog post, we will introduce you to one of the simplest yet widely used sorting algorithms called the Bubble Sort algorithm. So, let’s dive in and explore this sorting method step by step.

What is the Bubble Sort algorithm?

The Bubble Sort algorithm is a simple comparison-based sorting algorithm. It works by repeatedly swapping adjacent elements if they are in the wrong order. The algorithm gets its name because smaller elements “bubble” to the top of the list, similar to how air bubbles rise to the surface.

How does the Bubble Sort algorithm work?

  1. Start by comparing the first two elements of the list. If the first element is greater than the second element, swap them.
  2. Move to the next pair of elements and perform the same comparison and swap if necessary. Repeat this process until you reach the end of the list.
  3. If any swaps were made during a pass through the list, repeat the process starting from the beginning of the list. Continue this process until there are no more swaps.

Example implementation of Bubble Sort algorithm in Python:

def bubble_sort(arr):
    n = len(arr)
    for i in range(n-1):
        for j in range(n-i-1):
            if arr[j] > arr[j+1]:
                arr[j], arr[j+1] = arr[j+1], arr[j]
    return arr

# Test the bubble sort algorithm
numbers = [7, 3, 9, 1, 5]
sorted_numbers = bubble_sort(numbers)
print(sorted_numbers)

Time Complexity and Space Complexity

The Bubble Sort algorithm has a time complexity of O(n^2), where n is the number of elements in the list. It makes multiple passes through the list, comparing and swapping elements, resulting in the quadratic time complexity. In terms of space complexity, Bubble Sort requires only a constant amount of additional memory, making it efficient in terms of space.

Conclusion

Bubble Sort is a straightforward and easy-to-understand sorting algorithm, making it a great starting point for learning about sorting methods. However, due to its inefficient time complexity, it is not typically used for large datasets. Nonetheless, understanding Bubble Sort can provide a solid foundation for exploring more efficient sorting algorithms.

#SortingAlgorithms #BubbleSort