Bubble sort is a simple sorting algorithm that repeatedly steps through a list of elements, compares adjacent pairs of elements, and swaps them if they are in the wrong order. The pass through the list is repeated until the list is sorted.

Here is an example of how bubble sort works on an array of integers:

    1. Starting with the first element of the array, compare it to the next element.
    2. If the first element is greater than the second element, swap them.
    3. Move to the next pair of elements and repeat step 2.
    4. Continue this process until you reach the end of the array.
    5. At this point, the largest element in the array will have "bubbled up" to the end.
    6. Repeat steps 1-5, but this time stop before the last element of the array (since it is already in the correct position).
    7. Continue this process, stopping one element earlier each time, until the entire array is sorted.

The time complexity of bubble sort is O(n^2), which makes it inefficient for large arrays. However, it is a simple and easy-to-understand algorithm that can be useful for small arrays or educational purposes.
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