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# What is QUICK SORT?

Quicksort, or partition-exchange sort, is a sorting algorithm developed by Tony Hoare that, on average, makes O(n log n) comparisons to sort n items. In the worst case, it makes O(n 2) comparisons, though this behavior is rare. Quicksort is often faster in practice than other O(n log n ...
http://en.wikipedia.org/wiki/Quicksort
Illustrated quicksort explanation. How to choose a pivot value? Partition algorithm description. Complexity analysis. Java and C++ implementations.
http://www.algolist.net/Algorithms/Sorting/Quicksort
Animation, code, analysis, and discussion of quick sort on 4 initial conditions.
http://www.sorting-algorithms.com/quick-sort
Quick Sort . The basic version of quick sort algorithm was invented by C. A. R. Hoare in 1960 and formally introduced quick sort in 1962. It is used on the principle of divide-and-conquer.
http://www.personal.kent.edu/~rmuhamma/Algorithms/MyAlgorithms/Sorting/quickSort.htm
Quicksort definition A sorting algorithm with O(n log n) average time complexity . One element, x of the list to be sorted is chosen and the other elements are split into ...
http://dictionary.reference.com/browse/Quicksort
Best Answer: Quicksort is a well-known sorting algorithm developed by C. A. R. Hoare that, on average, makes Θ(n log n) comparisons to sort n items. However, in the worst ...
Quicksort is based on divide and rule. First divide a large list into two smaller sub-lists: the low elements and the high elements. Then recursively sort the sub-lists.
https://www.classle.net/faq/what-quick-sort-where-use
Quicksort is a recursive sorting algorithm following the 'divide et impera' scheme. it takes an element (token) of the list that is to sort and transfers every element that smaller on the one side and everything that is bigger on the other. for the whole list, the algorithm is used on the two
http://snippets.com/what-is-quicksort.htm
Quicksort is a very efficient sorting algorithm invented by C.A.R. Hoare. It has two phases: the partition phase and the sort phase. As we will see, most of the work is done in the partition phase - it works out where to divide the work.
http://www.cs.auckland.ac.nz/~jmor159/PLDS210/qsort.html
In this sort an element called pivot is identified and that element is fixed in its place by moving all the elements less than that to its left and all the elements greater than that to its right. Since it partitions the element sequence into left, pivot and right it is referred as a sorting by ...
http://ecomputernotes.com/data-structures/searching-and-sorting/what-is-quick-sort
Data Structure & Algorithms Assignment Help, What is quick sort, What is quick sort? Quick sort is a sorting algorithm that uses the idea if split and conquer. This algorithm chooses an element called as pivot element; search its position in the array such that it splits the array into two sub ...
http://www.expertsmind.com/questions/what-is-quick-sort-30164162.aspx
Best Answer: Quicksort is a fast efficient sorting algorithm. The following site has a quicksort implementation for an array of ints. It can easily be adapted to sort an array ...
As one of the more advanced sorting algorithms, you might think that the Quicksort Algorithm is steeped in complicated theoretical background, but this is not so.
http://www.mycstutorials.com/articles/sorting/quicksort
What is QUICK SORT IN C? Mr What will tell you the definition or meaning of What is QUICK SORT IN C
http://mrwhatis.com/quick-sort-in-c.html
Quicksort is a divide and conquer algorithm which relies on a partition operation: to partition an array an element called a pivot is selected. All elements smaller than the pivot are moved before it and all greater elements are moved after it.
http://en.wikipedia.org/wiki/Sorting_algorithm
Where you sort things quickly... Do some reading. All answers in life aren't just given to you. http://en.wikipedia.org/wiki/Quicksort
What is Quick Sort? The quick sort algorithm is of the divide and conquer type. That means it works by reducing a sorting problem into several easier
http://www.dotnetspark.com/qa/124-what-is-quick-sort.aspx
The quick sort is an in-place, divide-and-conquer, massively recursive sort. As a normal person would say, it's essentially a faster in-place version of the merge sort.
http://en.csharp-online.net/Quick_Sort
2.3 Quicksort. Quicksort is popular because it is not difficult to implement, works well for a variety of different kinds of input data, and is substantially faster than any other sorting method in typical applications.
http://algs4.cs.princeton.edu/23quicksort/
Description of the Quicksort algorithm (course material) ... Quicksort is one of the fastest and simplest sorting algorithms . It works recursively by a divide-and-conquer strategy.
http://www.inf.fh-flensburg.de/lang/algorithmen/sortieren/quick/quicken.htm
What is QUICK SORT PROGRAM IN C LANGUAGE? Mr What will tell you the definition or meaning of What is QUICK SORT PROGRAM IN C LANGUAGE
http://mrwhatis.com/quick-sort-program-in-c-language.html
Askville Question: what is a quick sort : Desktops & Laptops ... Quicksort is a recursive algorithm for sorting a list: 1. Pick any element, called the "pivot".
Quicksort is an efficient and until lately the most fashionable sorting algorithm invented by C.A.R. Hoare in 1962 while he was in Moscow and was first publish in 1962 in British Computer Society monthly Computer Journal (Hoare, C. A. R. "Quicksort."
http://www.softpanorama.org/Algorithms/Sorting/quicksort.shtml
Quick Sort in Java - Read more about quick sorting in java, quicksort program in java, source code of quick sort in java programming. Also find useful java source code, function and classes and its definition, and more java resources.
http://www.roseindia.net/java/beginners/arrayexamples/QuickSort.shtml
The order of qick sort at the best case is O(n log n)
A QuickSort algorithm implementation using Generics in C# 2.0.; Author: MaheshBabu.ap; Updated: 26 Oct 2006; Section: Algorithms & Recipes; Chapter: General Programming; Updated: 26 Oct 2006
http://www.codeproject.com/Articles/16115/QuickSort-Algorithm-using-Generics-in-C-2-0
Sorting algorithms/Quicksort You are encouraged to solve this task according to the task description, using any language you may know.
http://rosettacode.org/wiki/Sorting_algorithms/Quicksort
The algorithm. Quicksort sorts by employing a divide and conquer strategy to divide a list into two sub-lists. The steps are: Pick an element, called a pivot, from the list.
http://encycl.opentopia.com/term/Quicksort
Features . Similar to mergesort - divide-and-conquer recursive algorithm; One of the fastest sorting algorithms; Average running time O(NlogN) Worst-case running time O(N 2)
http://faculty.simpson.edu/lydia.sinapova/www/cmsc250/LN250_Tremblay/L06-QuickSort.htm
Animation, code, analysis, and discussion of quick sort (3 way partition) on 4 initial conditions.
http://www.sorting-algorithms.com/quick-sort-3-way
Quicksort, the fastest sorting algorithm, explained in detail with pseudocode!
http://www.cprogramming.com/tutorial/computersciencetheory/quicksort.html
There exists QuickSort implementations that runs on O(nlogn) worst-case, and as for your question, there is no better then O(nlogn) worst case comparison based sort, and as quick sort is 1, it is proved that O(nlogn) is cant be beaten anyway.
http://stackoverflow.com/questions/8024688/what-is-the-time-complexity-for-in-place-quick-sort
What is the time complexity of quicksort? ChaCha Answer: Quicksort is a well-known sorting algorithm developed by C. A. R. Hoare that...
http://www.chacha.com/question/what-is-the-time-complexity-of-quicksort
Stack Overflow is a question and answer site for professional and enthusiast programmers. It's 100% free, no registration required.
http://stackoverflow.com/questions/12650645/what-is-the-complexity-of-finding-pivot-element-in-quick-sort
Data Structures - What is the difference between bubble sort & quick sort? . 5 Answers are available for this question.
http://www.geekinterview.com/question_details/37456
Definition of quicksort in the Definitions.net dictionary. Meaning of quicksort. What does quicksort mean? Information and translations of quicksort in the most comprehensive dictionary definitions resource on the web.
http://www.definitions.net/definition/quicksort
quick sort A sorting technique that sequences a list by continuously dividing the list into two parts and moving the lower items to one side and the higher items to the other ...
http://encyclopedia2.thefreedictionary.com/quick+sort
Quick sort partitions the array into two sections, the first of "small" elements and the second of "large" elements. It then sorts the small and large elements separately.
http://www.csse.monash.edu.au/~lloyd/tildeAlgDS/Sort/Quick/
Definition of quicksort – Our online dictionary has quicksort information from A Dictionary of Computing dictionary. Encyclopedia.com: English, psychology and medical dictionaries
http://www.encyclopedia.com/doc/1O11-quicksort.html
Quicksort is a sorting algorithm developed by Tony Hoare that, on average, makes [math]{O}(n\log n)[/math] (big O notation) comparisons to sort [math]n[/math] items. In the worst case, it makes [math]{O}(n^2)[/math] comparisons, though this behavior is rare. Quicksort is often faster in practice ...
http://www.quora.com/Quicksort
What is “quicksort”? Why is it the greatest, fastest sorting method? I first learned about quicksort when I was just eighteen years old. I was still a kid at the time, and I didn’t get it. I get it now … Continue reading →
http://colinoftroy.wordpress.com/2013/01/25/quicksort/
Quicksort is a well-known sorting algorithm developed by C. A. R. Hoare that, on average, makes O(n log n) comparisons to sort n items. However, in the worst-case, it makes O(n 2) comparisons.
http://www.wordiq.com/definition/Quicksort
Quick-Sort 4/9/2002 10:1 Quick-Sort 1 Quick-Sort 7 4 9 6 2 → 2 4 6 7 9 4 2 → 2 4 7 9 → 7 9 2 → 2 9 → 9 Quick-Sort 2 Outline and Reading
http://ww3.algorithmdesign.net/handouts/QuickSort.pdf
Quick Sort is a sorting algorithm that sorts data items into ascending or descending order, which comes under the category of comparison-based sorting.
http://datastructuresnotes.blogspot.com/2009/03/what-is-quick-sort.html
What Is Quick Sort In C With Explanation? - Find Questions and Answers at Askives, the first startup that gives you an straight answer
This is a repost of a question on cs.SE by Janoma. Full credits and spoils to him or cs.SE. In a standard algorithms course we are taught that quicksort is O(n log n) on average and O(n²) in the worst case.
http://programmers.stackexchange.com/questions/150615/why-is-quicksort-better-than-other-sorting-algorithms-in-practice
Quick sort and merge sort algorithms - Quick sort employs the ‘divide and conquer’ concept by dividing the list of elements into two sub elements.....
http://www.careerride.com/Data-structure-quick-sort-and-merge-sort.aspx
Wrong algorithm . Several of the statements on this page including the definition of the "simple" algorithm are quite baffling when considered in the context of Hoare's original 1962 paper about quicksort, which explicitly defined quicksort as an in-place algorithm that used in-situ exchanges to ...
http://en.wikipedia.org/wiki/Talk%3AQuicksort
QUICKSORT Worst case: T(n) = O(n2) Average case: T(n) = O(n log n) The QUICKSORT algorithm. //Sort an array A of n elements. Create global integer array A[1:n+1];
http://gateguru.org/algorithms/quicksort.pdf
Quicksort with Java This article describes how to implement Quicksort with Java.
http://www.vogella.com/articles/JavaAlgorithmsQuicksort/article.html

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