Data Structure 4 - Quick Sort Algorithm Simulation C++ Code in Bangla - বাংলা

Sayef Reyadh - Programming Made Simple https://sayefreyadh.blogspot.com/2018/06/quick-sort-algorithm-simulation-c-code.html Quicksort (sometimes called partition-exchange sort) is an efficient sorting algorithm, serving as a systematic method for placing the elements of an array in order. Developed by Tony Hoare in 1959[1] and published in 1961,[2] it is still a commonly used algorithm for sorting. When implemented well, it can be about two or three times faster than its main competitors, merge sort and heapsort.[3] Quicksort is a comparison sort, meaning that it can sort items of any type for which a "less-than" relation (formally, a total order) is defined. In efficient implementations it is not a stable sort, meaning that the relative order of equal sort items is not preserved. Quicksort can operate in-place on an array, requiring small additional amounts of memory to perform the sorting. Mathematical analysis of quicksort shows that, on average, the algorithm takes O(n log n) comparisons to sort n items. In the worst case, it makes O(n2) comparisons, though this behavior is rare. Quicksort is a divide and conquer algorithm. Quicksort first divides a large array into two smaller sub-arrays: the low elements and the high elements. Quicksort can then recursively sort the sub-arrays. The steps are: Pick an element, called a pivot, from the array. Partitioning: reorder the array so that all elements with values less than the pivot come before the pivot, while all elements with values greater than the pivot come after it (equal values can go either way). After this partitioning, the pivot is in its final position. This is called the partition operation. Recursively apply the above steps to the sub-array of elements with smaller values and separately to the sub-array of elements with greater values. The base case of the recursion is arrays of size zero or one, which never need to be sorted. The pivot selection and partitioning steps can be done in several different ways; the choice of specific implementation schemes greatly affects the algorithm's performance. Follow Me At : Facebook : https://www.facebook.com/Sayef.Reyadh.Khan Blog : http://sayefreyadh.blogspot.com/ Google : [email protected] Instagram : Hashtag.sayef Twitter : SayefReyadhKhan LinkedIn : https://www.linkedin.com/in/sayefreyadhkhan Github : https://github.com/SayefReyadh/ For any Q/A please comment below. And Please Do Subscribe and tell me your thoughts on which topic I should cover next :) *** ANTI-PIRACY WARNING *** This content is Copyright to Sayef Reyadh. Any unauthorized reproduction, redistribution or re-upload is strictly prohibited of this material. Legal action will be taken against those who violate the copyright of the following material presented! Thank You. Copyright @ Sayef Reyadh. All rights are Reserved. Fair Use of International. This channel may use some copyrighted materials without specific authorization of the owner but contents used here falls under the “Fair Use” Copyright Disclaimer under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. Fair Use of Bangladesh. This channel may use some copyrighted materials without specific authorization of the owner but contents used here falls under the “Fair Use” as described in The Copyright Act 2000 Law No. 28 of the year 2000 of Bangladesh under Chapter 6, Section 36 and Chapter 13 Section 72. According to that law allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. #SayefReyadh #DataStructureBanglaTutorial #SortingAlgorithmBanglaTutorial