Bucket sort program code

The process of bucket sort can be understood as a scatter-gather approach. Here, elements are first scattered into buckets then the elements in each bucket are sorted. Finally, the elements are gathered in order. Course Index Explore Programiz.

Start Learning DSA. Popular Tutorials Quicksort Algorithm. Merge Sort Algorithm. Linked List Data Structure. Hash Table Data Structure. Dynamic Programming. Explore Python Examples. The main step to analyze is step 3. This step also takes O n time on average if all numbers are uniformly distributed please refer CLRS book for more details Following is the implementation of the above algorithm.

Collections; using System. Length; bucketSort arr, n ; Console. Skip to content. Change Language. Related Articles. Table of Contents. Improve Article. Save Article. Like Article. SuppressWarnings "unchecked". The data items in the bucket sort are distributed in the form of buckets.

In coding or technical interviews for software engineers, sorting algorithms are widely asked. So, it is important to discuss the topic. Bucket sort is a sorting algorithm that separate the elements into multiple groups said to be buckets.

Elements in bucket sort are first uniformly divided into groups called buckets, and then they are sorted by any other sorting algorithm. After that, elements are gathered in a sorted manner.

We can understand the Bucket sort algorithm via scatter-gather approach. Here, the given elements are first scattered into buckets. After scattering, elements in each bucket are sorted using a stable sorting algorithm. At last, the sorted elements will be gathered in order. Let's take an unsorted array to understand the process of bucket sort.

It will be easier to understand the bucket sort via an example. Now, create buckets with a range from 0 to The buckets range are , , , , Elements are inserted in the buckets according to the bucket range.

Suppose the value of an item is 16, so it will be inserted in the bucket with the range Similarly, every item of the array will insert accordingly. Now, sort each bucket individually. The elements of each bucket can be sorted by using any of the stable sorting algorithms.

Now, let's see the time complexity of bucket sort in best case, average case, and in worst case. We will also see the space complexity of the bucket sort. This article was not only limited to the algorithm. Bucket sort is one of the O N sorting algorithm like Radix sort and Counting sort.

Just like Counting sort, Bucket sort also makes some assumption about the input data beforehand like data should be uniformly distributed and should be with in a range. Bucket sort works by assigning the input elements to different buckets and then sorting those buckets individually using any sorting technique like insertion sort so the elements in those buckets are sorted. After that merge the buckets to get the sorted output.