https://github.com/svenvc/lampsort

LampSort, a non-recursive QuickSort
https://github.com/svenvc/lampsort

pharo smalltalk sorting-algorithms

Last synced: about 1 month ago
JSON representation

LampSort, a non-recursive QuickSort

• Host: GitHub
• URL: https://github.com/svenvc/lampsort
• Owner: svenvc
• Created: 2014-12-08T14:27:35.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2015-01-18T18:24:58.000Z (almost 10 years ago)
• Last Synced: 2023-03-23T16:25:23.617Z (almost 2 years ago)
• Topics: pharo, smalltalk, sorting-algorithms
• Language: Smalltalk
• Size: 258 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
lampsort

========

LampSort is a non-recursive implementation of QuickSort.

The core idea of QuickSort is not the elegant recursive implementation, 

but doing partitioning until there is nothing more to be done. 

The partition operation works on an interval over the data 

that we are sorting in place. It selects a pivot, which can be any element inside the interval, 

even just the first one as we are doing here, and then split the interval in 2 sub intervals: 

one with those elements smaller than the pivot and one with those elements larger than the pivot, 

moving elements around. The pivot is automatically left in the correct position. 

QuickSort loops, starting from the whole data interval, 

replacing it with consecutively smaller sub intervals, 

until only one element or empty intervals are left, which are sorted by definition. 

For more information:

- https://medium.com/@svenvc/lampsort-a-non-recursive-quicksort-implementation-4d4891b217bd

- http://bertrandmeyer.com/2014/12/07/lampsort/

- http://pharo.org

====

LampSortInstrumented is a version of LampSort that generates LampSortLogEvent objects while it runs. These log event object can be used to better understand the algorithm. 

LampSortVisualized should be loaded on top of LampSort. It is an experimental package that requires Roassal2. It is easiest to load it in a Moose 5.1 image based on Pharo 4.

Please refer to the following article for more information:

- https://medium.com/concerning-pharo/lampsort-revisited-visualised-6652055ef858