How do I use quicksort in C? | Bytes (2024)

Heapsort and quicksort

by: why |last post by:

Hi, just been curious. i have learn that quicksorting algorithm is more widely used then heapsort, despite having the same performance indication of O(n log n) anyone knows why? newbie

quicksort template

by: Lieven |last post by:

I want to write a generic quicksort over STL containers. We have to parallelize this algorithm afterwards. This is what I've got for now: template<typename containerIterator> void quicksort(containerIterator begin, containerIterator end){ ÂÂÂÂÂÂÂÂifÂ(endÂ>Âbegin){ ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂcontainerIteratorÂpivot(begin); ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂcontainerIteratorÂnewPivot(partition(begin,Âend,Âpivot));

Quicksort - compare function object

by: Lieven |last post by:

I want to make a quicksort algorithm that can take both a vector and a list. This is the code I've got. But I also want to give an argument that will be used for comparing the elements. I am used to programming in Lisp/Scheme, where I would just pass a lambda. Is a function object something like that in C++? And in that case, how would I pass the function/operator < (lesser then). //quicksort template<typename BidirectionalIterator>...

OT anyone know iterative quicksort?

by: HERC777 |last post by:

just paste the below into notepad, call it iqsort.html double click it and your IE browser will run it. (neat! a universal programming language we can all run!) it falls out from the sort procedure. I got javascript quicksort running, it's quick but it gets stack overflow after about 5000 elements. Am I passing the array as a parameter alright? I think javascript default is to pass pointers, that can be global.

Removing Tail recursions in quicksort

by: nkharan |last post by:

Hey, Here is the pseudocode of quicksort. It can be observed that there are as many as (n-1) unresolved stack calls in the worst case. Now, how do i reduce this unresolved stack calls? what modifications should I make? procedure QuickSort(L, low, high) recursive Input: L (a list of size n), low, high (integers) Output: L is sorted if high > low then

QuickSort . I don't understand this behavior

by: camotito |last post by:

Hi, I want to sort an array of pointers, each position of this array point to a position in an integer array. There is a strange behavior when the 'pivot' is '0'. I am using Visual C++, and when executing the OS tell me "quicksort.exe has encountered a problem and needs to close". When there is no zeros in the integer array, this doesn't happen. The pivot is always the last element. Try to change the last element in the array for a non...

Quicksort

by: Sendell |last post by:

Sorry that this is such a trivial question... For an assignment I had to write the quicksort program: //This program sorts a set of integers using the quicksort method. #include "stdafx.h" #include "genlib.h" #include "simpio.h" #include <stdio.h>

linked list quicksort

by: Baltazar007 |last post by:

Does anyone know how to make quicksort for single linked list without using array? I know that mergesort is maybe better but I need quicksort!! thnx

Parallel quicksort (MPI)

by: simo |last post by:

Hello to all... I am trying to write an algorithm parallel in order to realize the quicksort. They are to the first crews with C and MPI. The algorithm that I am trying to realize is PARALLEL QUICKSORT with REGULAR SAMPLING. The idea on the planning is right. the code that I have written syntactically does not only have problems that it does not want any to know to work... Are two days that I analyze it but I do not succeed to find the...

quicksort

by: aparnakakkar2003 |last post by:

hello can any one tell me how i can create program to sort string list(standard template library) using quicksort.

What is ONU?

by: marktang |last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...

Changing the language in Windows 10

by: Hystou |last post by:

Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...

Problem With Comparison Operator <=> in G++

by: Oralloy |last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 |last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...

The easy way to turn off automatic updates for Windows 10/11

by: Hystou |last post by:

Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...

Access Europe - Using VBA to create a class based on a table - Wed 1 May

by: isladogs |last post by:

The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI |last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Windows Forms - .Net 8.0

by: adsilva |last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

transfer the data from one system to another through ip address

by: 6302768590 |last post by:

Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system