Bubble Sort

Bubble sort is a simple sorting algorithm that works by repeatedly iterating through the list of items, comparing adjacent items and swapping them if they are in the wrong order. The process is repeated until the list is sorted. Here's a simple implementation of bubble sort in Python:

def bubble_sort(items):
  for i in range(len(items) - 1):
    for j in range(len(items) - 1 - i):
      if items[j] > items[j+1]:
        # Swap items[j] and items[j+1]
        items[j], items[j+1] = items[j+1], items[j]
  return items

To sort a list of items using bubble sort, you would call the bubble_sort function and pass
in the list of items as an argument. For example:

sorted_items = bubble_sort([5, 2, 8, 1, 9]) 
print(sorted_items)  # prints [1, 2, 5, 8, 9]

Bubble sort has a time complexity of O(n^2), which means that it is not a very efficient algorithm for large lists. It is more suitable for small lists or lists that are almost sorted.

Like selection sort, bubble sort belongs to the category of comparison-based sorting algorithms, which work by comparing elements in the list and rearranging them based on their relative values. Other examples of comparison-based sorting algorithms include selection sort and insertion sort.

Is Bubble sort a divide and conquer algorithm?


No, bubble sort is not a divide and conquer algorithm.

Divide and conquer algorithms work by dividing a problem into smaller subproblems, solving each subproblem individually, and then combining the solutions to the subproblems to solve the original problem. Bubble sort, on the other hand, works by repeatedly iterating through the list of items, comparing adjacent items and swapping them if they are in the wrong order. It does not divide the problem into smaller subproblems.

Bubble sort belongs to the category of sorting algorithms known as comparison-based sorting algorithms, which work by comparing elements in the list and rearranging them based on their relative values. Other examples of comparison-based sorting algorithms include selection sort and insertion sort.