We will repeat what we did in the first pass: Starting from the first element, check adjacent elements and place them in the correct order.We can be sure that after the first pass, the element in the last place, which has to be the largest number of the array, is correctly placed. We do this until the last two elements are compared.Otherwise, we swap them to be in the correct order, and then we move forward. If they are in the correct order, we leave them as they are and move forward. Then we consider the second and third elements and compare them.Otherwise, we swap them to be in the right order, and then we move forward. Initially, we consider the first and second elements and compare them.We already know that bubble sort works in passes. It can detect a minute error in an almost sorted array and fix it with linear complexity - we’ll talk more about this later!įirst, let’s look at how it works first. It is most useful when the list of elements is almost sorted. It’s a comparison-based sorting algorithm that sorts a set of elements by making several passes over the array and swapping adjacent elements that are not in the required order (ascending or descending).īubble sort is simple - it is often used to introduce the concept of sorting. The bubble sort algorithm sorts a given set of elements in a particular order by continually swapping two consecutive elements that are not in the required order. In this article, we’ll help you review the bubble sort algorithm by covering all the basics: Getting ready for your next technical interview? As a software developer, you know how important it is to brush up on your sorting algorithms - they’re a frequent feature in coding interviews!
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