The quicksort is an example of a divide and conquer algorithm in that it divides the sorting problem into smaller problems by dividing the list of items to be sorted into smaller subsets. The pivot is the mechanism that is used to segment the list. Describe how the quicksort works including a discussion of the pivot, how it is selected, and why the pivot is important to the quicksort.

Answers

Answer 1

Answer:

The quicksort pivot is an arbitrary element within the collection that is being sorted.  Using the pivot point, the collection of elements is partitioned into two smaller lists of elements.  Using some logic, the smaller elements are placed left of the pivot point, and larger elements are placed to the right of the pivot point.  Ideally, you would prefer you pivot point to be a median of your dataset to optimize the creation of the two sublists into a balanced state.

Cheers.

Answer 2

The pivot of a quicksort algorithm ought to always be the element in the middle. Some algorithms will choose the item in the center as the pivot, while others will choose the first or last element.

What is quicksort algorithm?

Quicksort is a sorting method that operates in-place. It was created by British computer scientist Tony Hoare and is still a widely used sorting algorithm.

When properly implemented, it can be slightly faster than merge sort and two or three times faster than heapsort.

The quicksort pivot can be any element in the collection being sorted. The collection of elements is divided into two smaller lists of elements using the pivot point.

Smaller elements are placed to the left of the pivot point, while larger elements are placed to the right of the pivot point.

To optimize the creation of the two sub-lists into a balanced state, you would prefer your pivot point to be the median of your dataset.

Thus, this way quicksort works.

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Related Questions

When you register to take classes, the registrar office pulls up a file full of
information about you, including your contact information, the list of classes you are
currently taking, classes you have completed, and your grades. What type of
productivity software is best suited for creating and storing this kind of information?
Spreadsheet
Word processing
Presentation
Database

Answers

Answer:

Database

Explanation:

Database software is intended to develop databases and to maintain, alter, access, and obtain useful data stored within them. It is often used to store, manage, and organize information such as field names, documents, and file structures in a database. it helps users to create their own databases to meet their business specifications and requirements. It provides data flexibility, as the storage process and formats can be modified without changing the entire program inside the database.

50 POINTS!!!! What is HpseuHostLauncher, and can I disable it without any major impact on my laptop?

Answers

Answer:

????????

Explanation:

As you're helping a user configure her e-mail over the phone, she remarks that the IP address is different than it was when she checked last week. This surprises her, since she didn't make any changes to her TCP/IP configuration. The user has had no problems running her web browser. You immediately know that:

Answers

Answer:

D. Her computer is a DHCP client.

Explanation:

Since in the question it is mentioned that IP address is different as compared in the previous week also the user did not make any changes with respect to the TCP/IP configuration and the system is working well

So this situation represents that the user computer is a client of DHCP as it deals with the client-server protocol in which it automatically generates the IP i.e Internet protocol along with the IP address

Hence, the correct option is d.

An IT firm came across a startup company that offers a new system of computer storage. It is currently in the experimental phase. Which aspect of the technology will the firm consider before adopting it?
a
internal storage
b
graphics
c
physical features
d
commercial potential

Answers

Answer:

d . commercial potential

Explanation:

The commercial potential of the technology would be a very important detail to look at before purchasing the new system of computer storage from the startup company.

This is important because the IT firm would be eager to know how the market would accept the product when it is launched. If the public does not like the product, then the firm would suffer a loss, this is why it is paramount.

Assume that the Measurable interface is defined with a static sum method that computes the sum of the Measurable objects passed in as an array, and that BankAccount implements the Measurableinterface. Also assume that there is a variable branchAccounts that is an object reference to a populated array of BankAccount objects for a bank branch. Which of the following represents a correct invocation of the sum method to find the total balance of all accounts at the branch?
A) Arrays.sum(branchAccounts)
B) Measurable.sum(branchAccounts)
C) BankAccount.sum(branchAccounts)
D) branchAccounts.sum()

Answers

Answer:

B) Measurable.sum (branchAccounts)

Explanation:

The user interface which can be built by adding components to a panel. The sum method that will be used to find total balance of all accounts at branch is measurable.sum, this will layout the sum of specified branch account total. The measurable interface implements public class bank account as measurable sum.

Question 19 :Rachel, a database administrator, has created a database for her website. It contains pictures of vacations that people have uploaded. In the database, pictures have associated information about who uploaded them and the date. What is this an example of?

Answers

Answer:

The correct answer will be "Semi-structured data".

Explanation:

Semi-structured data comprise evidence that just isn't data collected in some kind of a traditional database management system, but then neither is content typed. It's indeed descriptive information or structured data, but that's not organized into a theoretical design, like a chart or perhaps a graph centered through an entity.

So that the given scenario is the example of semi-structured data.

What type of edge does UML use to denote interface implementation? Group of answer choices A dotted arrow from the interface to the class terminated with a triangular tip. A dotted arrow from the interface to the class terminated with an open arrow tip. A dotted arrow from the class to the interface terminated with an open arrow tip. A dotted arrow from the class to the interface terminated with a triangular tip.

Answers

Answer:

A. A dotted arrow from the class to the interface terminated with a triangular tip

Explanation:

A small group of travelers is meeting inside an ancient building, and the travelers need access to the Internet using their mobile devices. However, the group is in an area where Wi-Fi Internet is not available and cellular coverage is intermittent. One of the travelers has an unlimited cellular data plan and a strong consistent signal. Which of the following methods would most likely be implemented to provide Internet service to the group?a. Cell phone tetheringb. Satellite Internetc. Mobile hotspotd. Cell phone tethering

Answers

Answer:

c. Mobile hotspot

Explanation:

A mobile hotspot is a hotspot that is to be activated by turning on the WiFI hotspot. It is used to share the cellular data to the laptop, computer system and the mobile devices who do not have an internet connection

Since in the question, it is mentioned that the one traveler has an unlimited cellular data plan and a consistent strong signal

So the mobile hotspot should be used to provide internet service to the group.

What features in Excel are the same as in Word?
What features are differ?

Answers

Answer:

Following are the difference and similarity between word and Excel:

Explanation:

The similarity in word and excel:

The MS-word and MS-Excel both are the part of Microsoft, that is used for the word processing and the  Spreadsheet (tablet program).  In the word processing is used to create papers like essays while the spreadsheet is used for manipulating the mathematical formula, in another way we can say that both are used for type letters. In both spreadsheet and the word processing is used for insert images, graphs, and hyperlinks, it also uses the tools for formatting bars and the toolbars.

The difference in word and excel:

In a word, it includes an application for text processing, and excel would be used for the tablet program.  The word is used to create documents like assignments file data files,  while excel is being used for the manipulation of numbers by mathematical equations.

Which of the following means to find and fix errors in code?Which of the following means to find and fix errors in code?
Debug
Document
Error check
Restore

Answers

Answer: Debug

Debugging is the process of finding bugs and fixing them.

Answer:

Its A

Debug

Explanation:

I took the test

A user has multiple web pages open and is using email. Which layer of the Transmission Control Protocol/Internet Protocol (TCP/IP) model is responsible for sorting the data to send email and web pages to the appropriate location

Answers

Answer: Transport layer

Explanation: The Transmission Control Protocol / Internet Protocol both combine to aid aod transmission of data through the internet. While the Transmission control protocol handles the establishment and Maintainace of network connection through applications , the Internet Protocol handles how the established data is being sent. The Transmission Control Protocol is forms a part of the transport layer which aids in the data transmission m ensuring that data is sent to the correct source. The transport layer is able to avoid errors as it ensures that established c is nnectio is maintained until data exchange is complete.

Which are characteristics of pseudocode? Select all that apply.
O helps in working out inputs and outputs of the solution
used in modeling the solution
presents algorithms informally, such as in English
presented in the programming language

Answers

Answer:

A,B,C

Explanation:

What steps are needed for word to create an index

Answers

Answer:

Do this:

Position the insertion pointer where you want the index to appear. If you want the index to start on a new page, create a new page in Word. ...

Click the References tab.

In the Index group, click the Insert Index button. The Index dialog box appears. ...

Click the OK button to insert the index into your document.

Answer:

Position the insertion pointer where you want the index to appear.

(the insertion point is the point where the next characters typed from the keyboard will appear)

If you want the index to start on a new page, create a new page in the program you're using

Then you click the References tab.

In the Index group, click the Insert Index button.

When the Index dialog box appears, click the OK button to insert the index into your document.

How are the waterfall and agile methods of software development similar?

Both methods allow project teams to complete small portions of the entire project in small sprints and work on different steps simultaneously.

Both methods focus on development rather than planning, in order for project teams to work more quickly.

Both methods have project teams work on one step at a time and move on when the previous step is completed and approved.

Both methods require documentation so project teams stay on track and keep control over what version of the project they are working on.

Answers

Answer:

In the question "first and last", that is "option 1 and 4" is correct.

Explanation:

In the given question the numbering of the choices is missing. if we numbering the choices, then the first choice is on the 1 number, the second choice is in 2 and so on, in which the correct and the wrong choice can be  defined as follows:

In point 1, Both method, it divides the project into small parts, at it the working is easy, that's why it is correct. In point 4, Both method, it requires the documentation, that's why it tracks the project. In point 2 and 3, both were wrong because it focuses on both development and planning, and in Waterfall when one part is complete then it will go on the next part, but in the Agile, it does not use this technique.

Different bosses have the authority to run their own departments in what department?

Answers

Answer:

Decentralized organization

Explanation:

A decentralized organization is an organization that decisions about the operation of the organizations units are made by the mid-level managers or lower-level managers as the case may be, instead from being made directly from the senior management or the company head

Fast-food franchise chain management is an example of a decentralized organization such that each outlet manages the planning income and expenditure of the unit business.

Decentralization is can be beneficial as it can lead to outstandingly broad creativity as demonstrated in  Google,which is  another good example of a decentralized structure of organizational management.

Which area of study involves microeconomWhich area of study involves microeconomics? A. a nation's ability to meet consumer demand B. rates of unemployment and inflation C. consumer behavior and preferences D. national income and its sourcesics?

Answers

Answer:

The correct answer is C. Consumer behavior and preferences.

Explanation:

hope it will help :)

Answer: the answer is C consumers behavior and preferences.

Explanation: just took the test please add thanks and brainliest

Read the excerpt from The Code Book. Other attacks include the use of viruses and Trojan horses. Eve might design a virus that infects PGP software and sits quietly inside Alice's computer. When Alice uses her private key to decrypt a message, the virus would wake up and make a note of it. The next time that Alice connects to the Internet, the virus would surreptitiously send the private key to Eve, thereby allowing her to decipher all subsequent messages sent to Alice. One way to better connect with this excerpt is to

Answers

Answer:

Tell about an experience with a computer virus.

Explanation:

Simon Singh's "The Code Book," tells the history of how cryptography came into being and the secret messaging world of encryption. Through the detailed narration and diving into the history of encryption, the author traces the evolution of such a process and reveals how it has had a huge impact on the world's policies.

In the given excerpt, Singh gives an example of how viruses are planted and used to spy/ get access to other people's computers. But while it is possible to get the main point of the example, it would have been better if the writer includes experience with a computer virus so that readers will find it easier to connect with the given example. This will enable them to better understand the working of viruses and their effects.

Thus, the correct answer is the first option.

Answer:

b

Explanation:

An application programming interface (API) is: Group of answer choices the code the application software needs in order to interact with the CPU the currently active part of an application all other answers are incorrect the code to interface between an application and a peripheral like a printer the code to interface between an application and RAM

Answers

Answer:

The code the application software needs in order to interact with the CPU

Explanation:

Create a letter of at least 250 words addressed to your newspaper editor that describes your storage options, and give at least three reasons why your option is the best choice.

Answers

Answer:

Following are the letter to this question:

Explanation:

Dear Raju:

For what journal is produced, I was composing to analyze the data collection possibilities. First of all, I should recognize how many documents you ’re expected to store: images, text files, news articles, and other records, even though going to weigh up the document is quite crucial to analyze that the best way to store this documents.  

For hardware depositors, people will save the documents through memory chips, because this is a network interface with a huge variety of subject areas. In this single and the small device are use the massive quantities of data, that can be protected and many memory locations can be published and authored at the very same procedure.

And if you'd like to view the files previous with releases, its cloud computing provides storage solutions that can be extended to the length for just a little money. But you'll have to keep in mind that even strong internet access is often required. Its information would also have to be stored digitally and managed to make readable by the computer. Its objective of all these alternatives would be to make life simple and efficient to store and manage information. its standard disc repayments involve memory space, remotes, disc cages, and authority. Users will save equipment and tech assistance expenses with this alternative and you will always maintain its content online even though it is big files. Even so, to preserve your content, it should make a regular backup.  

If you determine that option fits your needs, let me learn and I'll support you there.

Yours sincerely,

Dev

What tends to happen to the accuracy of our savings goals as our investment horizon becomes longer? A. It is not useful to have long-term savings goals. B. We are less able to accurately estimate the amount we will need. C. We can estimate the amount we need more accurately. D. The accuracy of our savings goals doesn't change.

Answers

Answer:

The answer is "Option B".

Explanation:

The Secured Goals are a part of your account, which is configured to just save your cash and also save it, and all the differences are good dividend savings accounts to shield this from accidental expenses. While opening the protected savings fund, the saving goal would be automatically created or loan rates invested only at the end of each month, that's why in this question "option B" is correct.

The less able to the accurate estimate of the amount we will require. Thus the option B is correct.

What is the saving goals of investment?

The saving or the secured Goal is a part of the account, it tells how to adjust and configure your save. When opening the protected saving fund the dating goal would be automatically to create the loan and rate the investment at the end of the month. Thus we can accurately estimate the amount we need.

Find out more information about the saving goals.

brainly.com/question/6903609

Carlos is using the software development life cycle to create a new app. He has finished coding and is ready to see the output it produces. Which stage of the software development life cycle is Carlos ready for next? Coding Design Maintenance Testing

Answers

Answer:

Testing

Explanation:

From the question, we understand that Carlos just finished the coding of the app.

In software development life cycle, the coding phase is where Carlos is expected to make use of his choice of programming language to design the app;

This stage is an integral part of the implementation process and according to the question, the coding has been completed;

The next phase or stage after the implementation phase is testing.

Hence, Carlos is getting ready to test the app.

Answer:

Testing                                   I took the test I definetly testing <3

Which of the following is considered information? a. A single keystroke b. All the characters on a keyboard c. An individual test score d. Average of a series of test scores

Answers

Answer:

The correct option is;

d. Average of a series of test scores

Explanation:

Information is defined as the knowledge or news which has been sent by one person and received by another such as the reply for a request for the current weather at a specific geographical location

Information is data that has been interpreted, processed, organised, put into a structured and presented within a given context that can be intelligible, meaningful and useful to people.

Question 12 :A user complains that his computer is taking a long time to boot. During the boot process, you observe that the hard drive activity light is staying on. You discover that the hard drive is nearing its maximum capacity. The computer contains a single 150 GB hard drive. What should you do

Answers

Answer:

Delete unnecessary apps

Explanation:

If you don't need it and its installed it's just using up memory the system could be using for something else

can we draw a formula triangle for velocity?​

Answers

Answer:

Yes we can actually draw a formula triangle for velocity

Explanation:

I can't explain why but if u wanna calculate the velocity of something using a diagram then you will draw a trapezium and in that trapezium there are two triangles and a rectangle so you will split it into two triangles and trapezium so I think we can actually draw a formula triangle for velocity

What are responsibilities of entrepreneurs? Check all of the boxes that apply.
to own businesses
to work for companies
to be responsible for employees
to be responsible to stakeholders
What are responsibilities of employees? Check all of the boxes that apply.
to own businesses
to work for companies
to be responsible for employees
to be responsible to stakeholders.

Answers

Answer:

The correct options are;

1) To own businesses

To be responsible to employees

2) To work for companies

To be responsible to stakeholders

Explanation:

The entrepreneur is responsible for setting up and managing the establishment as well as provision of motivation for the employees. The entrepreneur gives direction and vision to the business which the employees follow, and as such the entrepreneur is responsible for being laudable and dependable and consistent

The employees are responsible for the work they do for the companies is done in a safety and healthful to them

The employees are responsible for the health and safety of other stakeholders for their actions and in-actions and to cooperate with the safety efforts of the employer

Answer:

to own business, to be responsible for employees, to work for companies.

Explanation:

Joshua needs to store all of his music (over 2 GB), his movies (4GB), and his pictures (1GB). He wants to be able to access his media wherever he goes. He needs a cheap storage solution. Which type of storage would be best for Joshua?

Answers

Answer:Cloud storage

Explanation:I think that the cloud storage would be his best choice, because there are free cloud storages for use and all you need is access to the internet to upload or download files from them.


[tex]3x - 5 = 3x - 7[/tex]

Answers

Answer:

x = -1/2

Explanation:

Hey there!

To solve for x we need to simplify the following,

3x - 5 = 7x - 3

-3x to both sides

-5 = 4x - 3

+3 to both sides

-2 = 4x

Divide both sides by 4

-1/2 = x

Hope this helps :)

________is a nickname for social media tools which allows users to contribute content easily and to easily connect to each other. Instant Messaging Web 2.0 Cognitive surplus QR codes

Answers

Answer:

Web 2.0

Explanation:

The term that is being defined here is known as Web 2.0. As mentioned in the question this term refers to any and all social platform websites that emphasize user-generated content, ease of use, participatory culture, and interoperability for end users. Some examples of Web 2.0 features would be social media sites like FB, blogs, wikis, video sharing sites, image sharing sites, etc.

Which list method allows elements in a sequence to be removed and added at either end of the structure?
index
queue
stack
deque

Answers

Answer:

c.) stack

Explanation:

Answer:

the answer is c stack not only dose stack make the most since but i also got it right on edge 2020

Explanation:

As the security administrator for your organization, you must be aware of all types of attacks that can occur and plan for them. Which type of attack uses more than one computer to attack the victim?

Answers

Answer:

The answer is "DDoS "

Explanation:

The distributed denial of service attack (DDoS) occurs whenever a directed program's wireless data or assets, generally one or even more application servers, were also swamped by various machines. This attack is always the consequence of many affected systems, that fill up the target network with traffic.

This attack is aimed to avoid legal customers of one's website from accessing it.  In being effective in a DDoS attack, further demands need to be sent to the hacker than even the victim's server could deal with.  One other way to successfully attack is to send fake requests from the attacker.
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