Improve on the Bubble Sort

A bubble sort’s execution time is a multiple of the square of the number of elements. Because of this, the bubble sort is said to be an n-squared algorithm. You can easily make improvements to a bubble sort to speed it up.

One way is to reverse the direction of passes reading the array, instead of always reading the array in the same direction. This makes out-of-place elements travel quickly to their correct position. This version of a bubble sort is called the shaker sort, because it imparts a shaking motion to the array:

 Public Sub Shaker(Item() As Variant)	Dim Exchange As Boolean	Dim Temp As Variant	Dim x As Integer	Do		Exchange = False		For x = (UBound(Item)) To (LBound(Item) + 1) Step -1			If Item(x - 1) > Item(x) Then				Temp = Item(x - 1)				Item(x - 1) = Item(x)				Item(x) = Temp				Exchange = True			End If		Next x		For x = (LBound(Item) + 1) To (UBound(Item))			If Item(x - 1) > Item(x) Then				Temp = Item(x - 1)				Item(x - 1) = Item(x)				Item(x) = Temp				Exchange = True			End If		Next x	Loop While ExchangeEnd Sub

Although the shaker sort improves the bubble sort, it still executes as an n-squared algorithm. However, because most programmers can code a bubble sort with their eyes closed, this is a nice way to shave 25 to 33 percent off the required execution time without having to dig out the algorithm books. Still, you don’t want to use either a bubble or shaker sort for extremely large data sets.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin

Overview

The Latest

homes in the real estate industry

Exploring the Latest Tech Trends Impacting the Real Estate Industry

The real estate industry is changing thanks to the newest technological advancements. These new developments — from blockchain and AI to virtual reality and 3D printing — are poised to change how we buy and sell homes. Real estate brokers, buyers, sellers, wholesale real estate professionals, fix and flippers, and beyond may

man on floor with data

DevX Quick Guide to Data Ingestion

One of the biggest trends of the 21st century is the massive surge in internet usage. With major innovations such as smart technology, social media, and online shopping sites, the internet has become an essential part of everyday life for a large portion of the population. Due to this internet

payment via phone

7 Ways Technology Has Changed Traditional Payments

In today’s digital world, technology has changed how we make payments. From contactless cards to mobile wallets, it’s now easier to pay for goods and services without carrying cash or using a checkbook. This article will look at seven of the most significant ways technology has transformed traditional payment methods.