The correct answer for this problem is a. read
Why does it uses read phase?
In the optimistic approach to concurrency control in database systems, during the read phase, a transaction scans the database and reads the values it needs in order to execute the necessary computations.
This is often referred to as the "read" phase.
If the values have been modified by another transaction, the current transaction may need to abort and retry the process from the beginning. This ensures that transactions are able to execute without conflicting with one another and helps to maintain the integrity of the database.
To Know More About database, Check Out
https://brainly.com/question/29774533
#SPJ4
To add drop-down lists to your worksheet with predetermined options for each city name, you decide to use _____
To add drop-down lists to your worksheet with predetermined options for each city name, you decide to use Data validation.
What is worksheet?In the original sense of the word, a worksheet refers to a piece of paper used for work. They take many different forms, but are most frequently connected to tax forms, accounting, and other business settings. The worksheet made of paper is increasingly being replaced by software.
It might be a printed page that a kid fills out with a writing implement. There is no requirement for additional supplies. It is "a piece of paper used to record work schedules, working hours, special instructions, etc. a piece of paper used to jot down problems, ideas, or the like in a rough form." A worksheet used in education might contain questions for students and spaces for them to record their responses.
Learn more about worksheet
https://brainly.com/question/25130975
#SPJ4
create a logical model identify entities and attributes input the data into the tables database create a conceptual model implement the database
A logical model includes depictions of entities, properties, relationships, special identifiers, sub types, and super types, as well as restrictions on how relationships can be formed.
What is data model?
A logical model may also reference one or more domain or glossary models or include objects from a domain model. Relational data models, network data models, and hierarchical data models are three examples of this sort of data model. Data are represented as relations, or tables, in the relational model. System for managing orders simply. This is a conceptual data model for a straightforward wholesale retail order management system. Even though some consumers might not have sent any orders yet, customers send orders to the store. Each order item for a product is one of many order items that make up the order.
To learn more about data model from given link
brainly.com/question/10686043
#SPJ4
Complete the function to determine which variable in a dataframe has the highest absolute correlation with a specified column. 1 import pandas as pd 2 def find_highest_correlated(df, column): 3 ## Write your code here... 5 solution=None 6 return solution 8 \#\#\# Click 'Run' to execute test case 9 test_case = find_highest_correlated(hr_df, 'left')
The solution is def find_highest_correlated(df, column): corr_list = df.corr()[column].abs().sort_values(ascending=False) solution = corr_list.index[1] return solution.
How to determine the function which variable in a dataframe has the highest absolute correlation ?1. Calculate the correlation coefficient between each variable in the dataframe.
2. Take the absolute value of each correlation coefficient.
3. Sort the absolute values in descending order.
4. The variable with the highest absolute correlation is the one at the top of the list.
5. The function of this variable can be determined by looking at the correlation coefficient sign. If the sign is positive, the function of the variable is positively correlated with the other variables. If the sign is negative, the function of the variable is negatively correlated with the other variables.
# Write your code here...
corr_df = df.corr()
solution = corr_df[column].abs().sort_values(ascending=False).index[1]
return solution
To learn more about dataframe refer to:
https://brainly.com/question/29682397
#SPJ4
When searching for an app or extension, check out the ___________ to learn from other users' experiences with that app or extension.
Reviews
Check out the reviews while looking for an extension or software to get a sense of how other users felt about it.
What function do extensions and apps serve?Users may be able to add files to a website through apps or extensions. gives an app or extension the ability to create, read, traverse, and write to the user's local file system at a user-chosen location. (Chrome OS only) gives an app or extension the ability to construct file systems that can be accessed via the Chrome device's file manager.
What exactly does allows app mean?enables an extension or app to request information about the physical memory of the machine. enables a program or extension to communicate with native applications on a user's device. A native messaging host registration is required for native apps.
To know more about software visit :-
https://brainly.com/question/26649673
#SPJ4
interrupt checking is typically carried out at various times during the execution of a machine instruction. T/F
True, interrupt checking often happens several times while a machine instruction is being executed.
How are computer instructions carried out?The CPU runs a program that is saved in main memory as a series of machine language instructions. It achieves this by continuously retrieving an instruction from memory, known as fetching it, and carrying it out, known as executing it.
What are computer instructions?Machine instructions are instructions or programs that can be read and executed by a machine (computer). A machine instruction is a set of memory bytes that instructs the processor to carry out a specific machine action.
To know more about interrupt visit:-
https://brainly.com/question/29770273
#SPJ4
while performing disk and file maintenance on the company file server, you determine a user in the accounting department has been accidentally saving documents to all shared folders on the file server. the user's computer was recently passed to her from another user in the company, and according to company policy, the user should have access only to the accounting share.
Note that the incidence that best describes the above situation regarding Disk and file maintenenace is "The principle of least privilege was not followed."
What is the principle of least privilege?The principle of least privilege (PoLP) is a concept in information security that states that a person or entity should only have access to the data, resources, and programs required to execute a task.
The routine modifications, updating, copying, transferring, or deleting of files on a computer is known as disk and file maintenance. File maintenance is often conducted on computers or servers that serve a large number of files.
Files and folders on a computer's hard disk defragment or break down over time and with continuous use. Computer files that have been fractured are chaotic. As a result, the Operating System (OS) operates slowly and identifies processing issues, according to Support.
Learn more about the Principle of least privilege:
https://brainly.com/question/29793574
#SPJ1
Full Question:
While performing disk and file maintenance on the company file server, you determine a user in the accounting department has been accidentally saving documents to all shared folders on the file server. the user's computer was recently passed to her from another user in the company, and according to company policy, the user should have access only to the accounting share.
What best describes this situation?
(T/F) Desktop Management software requires managers to install software such as antivirus updates or application updates on client computers manually.
Managers must manually install software, such as antivirus updates or application updates, on client computers when using desktop management software. The answer is False.
What is Desktop Management software?All computer systems inside a company are managed and secured by a desktop management programme, which is a complete tool. The management of other devices used by the organization, such as laptops and other computer devices, is also a part of "desktop" administration, despite the name.
Without requiring physical access to the endpoints, such as desktop computers or mobile devices, desktop management software enables IT teams to locate, manage, and control endpoints on both local and remote sites.
Keeping user PCs up to date can be difficult for IT managers, especially with the ongoing need to upgrade software to prevent security breaches.
To know more about Desktop Management software refer to :
brainly.com/question/13051262
#SPJ4
Determine all cache accesses and the state of the data cache at any given time. From this you can determine any additional cycles from data cache misses. You must calculate the number of bits for the offset, index, and tag, determine the number of hits and misses, show the contents of the cache, and use the number of misses to determine any additional clock cycles required. The total clock cycles would be the total cycles for all iterations from Part 2 plus any additional memory access cycles from cache misses from Part 3.
The smallest and fastest part of a computer system's memory is the cache. The registers, which make up a very minor portion of the computer CPU, are quick storage components.
Why does the cache memory access time take less time than the main memory access time?Cache memory must be substantially smaller than main memory in order to be situated near to the CPU. As a result, it has less room for storage. Due to the increased performance of the more complicated chip, it is also more expensive than main memory.
What distinguishes Level 1 from Level 2 and Level 3 cache benefits?Since it is the smallest and nearest to the CPU, Level 1 (L1) cache memory is the quickest type. On the processor chip, Level 2 (L2) has a larger capacity but a slower speed. The computer that uses the L2 cache has the biggest capacity Level 3 (L3) cache memory.
To know more about Cache memory visit:-
https://brainly.com/question/16091648
#SPJ4
TRUE/FALSE/excel pie charts: excel pie charts: are known by data analysts as the most accurate kinds of charts. can be used to highlight a datapoint (such as a category on the x axis). can be used to display trendlines. are not good for comparing parts of a whole.
It's false. Line charts are known by data analysts as the most accurate kinds of charts. It can be used to highlight a data point (such as a category on the x-axis), can be used to display trend lines, and are not good for comparing parts of a whole.
Characteristic of pie chartsIt is a circular graphic divided into a series of slices that represents a particular category. It is good to show and compare the component parts of a whole. All slices of the pie chart must add up to 100.It is visually simpler than other types of charts.Know more about Excel charts here:
https://brainly.com/question/29756324
#SPJ4
cryptographic hash fuctions generally executes faster in software then convential encryption algorrithms such as des
Software often runs cryptographic hash functions more quickly than traditional encryption algorithms like DES. This claim is untrue.
What are hash functions used in cryptography?A cryptographic hash function (CHF) is a hash algorithm that has unique characteristics that make it useful for cryptography. It maps any binary string to a binary string with a predefined size of n bits.
What is an algorithm for encryption?A mathematical technique known as an encryption algorithm transforms plaintext into ciphertext with the aid of a key. They also enable the process to be reversed, turning plaintext back into ciphertext. Examples of popular encryption methods include RSA, Blowfish, Twofish, DES, and Triple DES.
To learn more about encryption visit:
brainly.com/question/17017885
#SPJ4
in access, the view is used to 1.) add, remove or rearrange fields 2.) define the name, the data type
Design view gives you a more detailed view of the structure of the form.
What exactly is a design perspective?Viewpoint on Design: The form's structure can be seen in more detail in the design view. The Header, Detail, and Footer portions of the form are clearly visible. Although you cannot see the underlying data while making design changes, there are several operations that are simpler to carry out in Design view than in Layout view.
Use the Form Selector to select the full form. Double-click the form to see its characteristics. The form's heading is visible at the very top. Controls group: In the Controls group, you can add controls to your form. The most typical view is called standard, normal, or design view, and it features a blank screen that you can text on, paste, or draw on.
To learn more about Design view, visit:
brainly.com/question/13261769
#SPJ4
Sprint Review and Retrospective
As would normally happen at the end of a Sprint or an incremental release, the Scrum Master will put together a Sprint Review and Retrospective. For this deliverable, you will take on the role of the Scrum Master and create a Sprint Review and Retrospective to summarize, analyze, and draw conclusions on the work you completed during the course of the development. In a paper, be sure to address each of the following:Demonstrate how the various roles on your Scrum-agile Team specifically contributed to the success of the SNHU Travel project. Be sure to use specific examples from your experiences.
Describe how a Scrum-agile approach to the SDLC helped each of the user stories come to completion. Be sure to use specific examples from your experiences.
Describe how a Scrum-agile approach supported project completion when the project was interrupted and changed direction. Be sure to use specific examples from your experiences.
Demonstrate your ability to communicate effectively with your team by providing samples of your communication. Be sure to explain why your examples were effective in their context and how they encouraged collaboration among team members.
Evaluate the organizational tools and Scrum-agile principles that helped your team be successful. Be sure to reference the Scrum events in relation to the effectiveness of the tools.
Assess the effectiveness of the Scrum-agile approach for the SNHU Travel project. Be sure to address each of the following:
Describe the pros and cons that the Scrum-agile approach presented during the project.
Determine whether or not a Scrum-agile approach was the best approach for the SNHU Travel development project.
Agile Presentation
Finally, you have been asked to put together a PowerPoint presentation for the leadership at your company. You will start by explaining the key facets of the Scrum-agile approach. You will also contrast the waterfall and agile development approaches to help your leadership make an informed decision. You must use properly cited sources to support your points. In your presentation, be sure to address each of the following:Explain the various roles on a Scrum-agile Team by identifying each role and describing its importance.
Explain how the various phases of the SDLC work in an agile approach. Be sure to identify each phase and describe its importance.
Describe how the process would have been different with a waterfall development approach rather than the agile approach you used. For instance, you might discuss how a particular problem in development would have proceeded differently.
Explain what factors you would consider when choosing a waterfall approach or an agile approach, using your course experience to back up your explanation.
What to Submit
To complete this project, you must submit the following:
Sprint Review and Retrospective
Your retrospective should be a 3- to 4-page Word document with double spacing, 12-point Times New Roman font, and APA formatting. Be sure to address all prompts. You are not required to use sources for the retrospective; however, any sources that you do use must be cited.
Agile Presentation
Your agile presentation should be a PowerPoint of at least 5 slides in length, including a references slide. Be sure to address all prompts. You must use properly cited sources in APA style to support your points.
A sprint review occurs at its conclusion, as its name suggests. It's when the group presents the project's outcomes. The team evaluates their performance in relation to their objectives and talks about how to make the product better.
What is the difference between a sprint review and a sprint retrospective?The distinguishes sprint reviews from sprint retrospectives. The main distinction is that a Sprint Review concentrates on improvement so the team can produce a better product, but a Sprint Retrospective concentrates on system improvement so the team can work more harmoniously and achieve flow.
While the sprint retrospective focuses on process improvement, the sprint review is more concerned with product development. The alignment of all stakeholders and developers during the sprint review meeting is necessary to produce an efficient, usable, technically sound, and user-centric product.
A sprint review occurs at its conclusion, as its name suggests. It's when the group presents the project's outcomes. The team evaluates if they achieved their objectives and talks about how they might make the product better.
To learn more about sprint review refer to :
https://brainly.com/question/29407828
#SPJ4
TRUE OR FALSE it is important to know if a computer is byte or word addressable because we need to know how many addresses are contained in main memory, cache, and in each block when doing cache mapping.
TRUE Since we need to know how several addresses are included in main memory, cache, and each block when executing cache mapping, it is crucial to understand if a computer is bytes or word addressable.
Cache: What is it?
In a computing setting, a cache is a piece of hardware or program that is used to temporarily store something, typically data. To improve the speed of recently or often accessed data, a small quantity of quicker, more expensive memory is employed. Data that has been cached is transiently kept on a local storage medium that is available to the cache clients and unrelated to the main storage. Its central processing unit (CPU), programmes, web browsers, and operating systems all frequently use cache.
To know more about Cache
https://brainly.com/question/15276918
#SPJ4
comptia calls regularly updating operating systems and applications to avoid security threats patch management. T/F
The given statement, compTIA calls regularly updating operating systems and applications to avoid security threats patch management, is TRUE.
What is compTIA?CompTIA is not a plan or even a strategy. The Computing Technology Industry Association is what it is, actually. Through training, certifications, education, market research, and philanthropy, CompTIA seeks to encourage the growth of the industry. While providing instruction in contemporary information technology, it also promotes creativity and opens doors by providing applicants with the tools they need to succeed. The company's strategy is also autonomous and vendor-neutral, providing completely agnostic information that doesn't rely on familiarity with certain frameworks or tools.
To know more about compTIA refer:
https://brainly.com/question/28746291
#SPJ4
To select adjacent worksheet tabs, click the first tab, press down and hold down this key, and then click the last tab.Shift
To select the adjacent worksheet tabs, click the first tab, press down and hold down the shift key and then click the last tab.
What is Microsoft Word?Microsoft Word is a word processor that may be used to create papers, letters, reports, and other types of writing of a professional calibre. It includes sophisticated capabilities that give you the best formatting and editing options for your files and projects.
What are examples of MS Word?Application software that enables you to create, edit, and save any documents is an example of Microsoft Word. It was first developed by software engineers Richard Brodie and Charles Simoyi in 1983 and is now owned by Microsoft.
To know more about word processors visit:
https://brainly.com/question/14103516
#SPJ4
a error occurs when the program successfully compiles, but halts unexpectedly during runtime.
Run-time errors are when a software correctly builds, but then unexpectedly crashes during runtime.
What is run-time errors ?A runtime error is a software or hardware issue that interferes with Internet Explorer's proper operation. When a website employs HTML code that conflicts with a web browser's capability, runtime issues may result. A runtime error happens when a program has a problem that is only discovered during program execution even though it is syntactically sound.
Here are some instances of typical runtime faults you are guaranteed to encounter: The Java compiler is unable to catch these flaws at build time; instead, the Java Virtual Machine (JVM) only notices them when the application is running. Variable and function names that are misspelled or wrongly capitalized. attempts to conduct operations on incorrectly typed data, such as math operations (ex. attempting to subtract two variables that hold string values)
To learn more about run-time error refer to :
https://brainly.com/question/13106116
#SPJ4
to mitigate network attacks, you must first secure devices including routers, switches, servers, and supervisors.
Yes, securing devices is an important step in mitigating network attacks.
Yes, securing devices is an important step in mitigating network attacks.
What are some general recommendations for securing devices?Keep software up to date: Make sure to install the latest software updates and security patches for all devices.Use strong passwords: Use unique, complex passwords for all devices and change them regularly.Enable security features: Use security features like firewalls, encryption, and authentication to help protect devices from attacks.Monitor and maintain devices: Regularly monitor the security of your devices and maintain them in good working order to help prevent attacks.Limit access: Only allow authorized users to access your network and devices, and limit their access to only the resources they need to do their job.Use network segmentation: Divide your network into smaller segments to make it harder for attackers to gain access to sensitive areas.Use network access controls: Implement network access controls to allow or block devices from connecting to your network based on predefined rules.To Know More About firewalls, Check Out
https://brainly.com/question/13098598
#SPJ4
You want to know which files are large files (at least 0.1MB) in your data directory, but you do not want to go through them one by one. So you decide to design a regular expression to help with this. Locate the rule under the p1 target in your Makefile. This rule uses the Is command to list the contents of the data directory in your current folder. The -I option produces the long listing for these contents, which includes their size in bytes. The output of this is command is then piped as input into grep command. The-E option for the grep command allows searching through this text with a regular expression. Replace the regular expression in this grep command to search for any 6 digit number. Since the size of these files are displayed in bytes, the smallest possible six digit number: 100000 corresponds to 0.1MB. When this regular expression is correct, running "make p1" should display the three large files that can be found within the provided data directory. Tip: Start by composing a regex that matches any single digit, and test this to make sure that it works as expected. If you encounter trouble with one specific way of matching single digits, like \d, then please try to find another way that works with grep - E. Once this is working, look for a way to extend this pattern so that it must be repeated exactly six times to be matched.
You must pipe the command's output through grep in order to utilize grep as a filter. " | " is the symbol for pipe.
Explain about the grep?The full line containing the matched string is displayed by default when using grep. To display only the matched pattern, change this setting. Using the -o option, we may instruct grep to show only the matching string. Using grep -n, output should be displayed together with the line number: To display the file's line number where the matching line was found.
Within collections of files, the grep command can look for a string. It outputs the name of the file, a colon, the line that matches the pattern, and the pattern when it discovers a pattern that matches in more than one file.
Instead of putting a filename at the end of a grep command, use an asterisk to search all files in the current directory.
To learn more about string refer to:
https://brainly.com/question/16397908
#SPJ4
Consider the following class definition
class rectangleType
{
public:
void setLengthWidth(double x, double y);
//Postcondition: length = x; width = y;
void print() const;
//Output length and width;
double area();
//Calculate and return the area of the rectangle;
double perimeter();
//Calculate and return the parameter;
rectangleType();
//Postcondition: length = 0; width = 0;
rectangleType(double x, double y);
//Postcondition: length = x; width = y;
private:
double length;
double width;
};
and the object declaration
rectangleType bigRect(14,10);
Which of the following statements is correct?
(Points : 4)bigRect.setLengthWidth();
bigRect.setLengthWidth(3.0, 2.0);
bigRect.length = 2.0;
bigRect.length = bigRect.width;
bigRect.setLengthWidth(3.0, 2.0); is the correct declaration of the class variable.
What is a class variable?
Class variables, also known as static variables, are declared using the static keyword within a class but outside of a method, constructor, or block. Regardless of how many objects are created from it, each class variable would only have one copy.
Instance variables are declared within a class but outside of a method. When heap space is allocated to an object, a slot is created for each instance variable value. Instance variables store values that must be referenced by multiple methods, constructors, or blocks, as well as essential parts of an object's state that must be present throughout the class.
Local variables are declared within methods, constructors, or blocks. Local variables are created when the method, constructor, or block is entered, and they are destroyed when the method, constructor, or block is exited.
To know more about Variable, visit: https://brainly.com/question/28463178
#SPJ4
after roughly how many seconds does the amount of information in immediate memory begin to drop off precipitously? type your numeric answer and submit numeric answer - type your numeric answer and submit
After 3 seconds the amount of information in immediate memory begins to drop off precipitously.
What exactly do you mean by instant memory?a sort or stage of memory when a person can recall details that were recently presented, like a street address or phone number, even though those details might be forgotten after being used right away. A common test to determine IQ or neurological damage is the immediate memory test.
What purposes serve IQ tests?A person's short-term and long-term memory is measured as the first step of an IQ test to determine their level of intelligence. It evaluates how quickly people can do these tasks as well as how effectively they can solve puzzles or recall information they have heard.
To know more about IQ visit:
https://brainly.com/question/29035691
#SPJ4
Which of the following activities is least likely to result in a segmentation fault?
Question 19 options:
Removing an element from the middle of a linked list without fixing the pointers afterwards
Growing the stack too large, such as with an unbounded recursive function
Trying to write into protected space, such as modifying the code segment of the program
Accessing a memory address outside its boundaries
From the following activities, the one that is least likely to result in a segmentation fault is: "Removing an element from the middle of a linked list without fixing the pointers afterwards" (Option A)
What is a segmentation fault?A segmentation fault or accessibility violation is a fault, or failure condition, reported by memory-protected hardware that alerts an operating system that software has attempted to access a restricted portion of memory. This is a type of generic protection fault on ordinary x86 machines.
Check whether your compiler or library can be made to check limits on I at least in debug mode, to remedy a segmentation error. Buffer overruns that write trash over excellent pointers can trigger segmentation faults. These actions will significantly minimize the chance of segmentation faults and other memory issues.
Learn more about Segmentation Fault:
https://brainly.com/question/15412053
#SPJ1
Chinh wants to have a program print “Sorry, but that isn’t one of your options” until the user enters the correct information. What should be used to do this?
A.
database
B.
import
C.
while loop
D.
for loop
Answer:
C, while loop.
Explanation:
In a while loop, the program repeats itself until the given condition is met. In pseudocode, you could represent this as:
while input is not an option:
print Sorry, but this isn't one of your options.
Brainliest would be appreciated if this answer helped you :)
________ hackers are security experts that are paid to hack systems to find security holes for the purpose of preventing future hacking.
O Black-hat
O Gray-hat
O Red-hat
O White-hatAnswer: White-hat
White hat hackers are salaried workers or independent contractors who act as security experts for businesses and use hacking to try and uncover security flaws.
What kind of hackers get into systems for fun or to demonstrate their prowess?Black hat hackers, often known as crackers, are dishonest hackers. Black hats are unethical, occasionally break the law, break into computer systems with malicious intent, and may compromise the privacy, integrity, or accessibility of a company's systems and data.
A Red hat hacker is a who?Targeting Linux systems could be referred to as being a red hat hacker. Red hats, however, have been compared to vigilantes. Red hats aim to disarm black hats much like white hats do, although their strategies diverge greatly from those of the former.
To know more about hackers visit:-
https://brainly.com/question/29215738
#SPJ4
a security administrator suspects an employee has been emailing proprietary information to a competitor. company policy requires the administrator to capture an exact copy of the employee's hard disk. which of the following should the administrator use?
Demand drafts are orders of payment by a bank to another bank.
What exactly does Dd mean?Demand drafts are payments made by one bank to another, whereas checks are payments made by an account holder to the bank. A Drawer must go to the bank’s branch and fill out the DD form, as well as pay the money in cash or by any other means, before the bank will issue a DD [demand draft]. All of your permanent computer data is stored on the hard disk. When you save a file, photo, or piece of software to your computer, it is saved on your hard drive. Most hard disks have storage capacities ranging from 250GB to 1TB.
Simply simply, a hard disk is a device that stores data. On a computer, this comprises all of your images, movies, music, documents, and apps, as well as any other files.
To learn more about Dd refer:
https://brainly.com/question/29910108
#SPJ4
Answer
Explanation
Windows Network Diagnostics, a GUI tool included with Windows 7 and Windows 8.x, will diagnose a network problem and instruct you on how to solve the problem. True or False
A GUI application called Windows Network Diagnostics that comes with Windows 7 and Windows 8.x will diagnose a network issue and provide you instructions on how to fix it. The assertion is accurate.
What is the purpose of GUI?
Choice points will be shown to the user that are easy to spot, understand, and utilize. In other words, GUI makes it possible for you to control your device using a mouse, a pen, or even your finger. GUI was created because text command-line interfaces were convoluted and difficult to comprehend.
What GUI examples are there?
Computer monitors, mobile devices like smartphones and tablets, and gaming consoles are a few examples of GUIs. The software on the gadget continuously scans the screen to ascertain where and how the pointing devices are moving.
To know more about GUI tool visit:
https://brainly.com/question/10729185
#SPJ4
44.7.1: unit testing. add two more statements to main() to test inputs 3 and -1. use print statements similar to the existing one (don't use assert).
To add two more statements to main() to test inputs 3 and -1, check the given code.
What is statements?A list of directives for a computer to follow constitutes a computer programme. These instructions for programming are referred to as statements in a programming language.
The parts of programmes called C++ statements govern the order and flow of execution of other programmes. Statements may either be one line of code with a semicolon ; at the end or a block of code enclosed in curly braces.
There are several different types of statement in C++.
Labeled statementsExpression statementsCompound statementsSelection statementsIteration statementsJump statementsTry-Catch blocksDeclaration statements//CPDE//
cout << "3,
expecting 27,
got: " << CubeNum(3) << endl;
cout << "-1,
expecting -1,
got: " << CubeNum(-1) << endl;
Learn more about statements
https://brainly.com/question/14467883
#SPJ4
Recall that a contiguous subarray is all of the elements in an array between indices
i
and
j
, inclusive (and if
j
we define it to be the empty array). Call a subarray is nearly contiguous if it is contiguous (i.e. contains all elements between indices
i
and
j
for some
i,j
) or if it contains all but one of the elements between
i
and
j
. For example, in the array
[0,1,2,3,4]
, -
[0,2,3]
is nearly contiguous (from 0 to 3 , skipping 1 ), sum is 5 -
[0,1,2,3]
is nearly contiguous (because it is contiguous from 0 to 3 ), sum is 6 . -
[2,4]
is nearly contiguous (from 2 to 4 , skipping 3 ), sum is 6 . - [3] is nearly contiguous (because it is contiguous from 3 to 3 ), sum is 3 . - [] is nearly contiguous (because it is contiguous from 1 to 0 ), sum is 0 . -
[0,2,4]
is not nearly contiguous (because you'd have to remove two elements). The sum of a nearly contiguous subarray is the sum of the included elements. Given int [] A, your task is to return the maximum sum of a nearly contiguous subarray. For example, on input
[10,9,−3,4,−100,−20,15,−5,9]
your algorithm should return 24 (corresponding to
i=
6,j=8
and skipping the
−5
). (a) Define one or more recurrences to solve this problem. (b) Give English descriptions (1-2 sentences each should suffice) for what your recurrences calculate. Be sure to mention what any parameter(s) mean. (c) How do you caclulate your final overall answer (e.g. what parameters input to which of your recurrences do you check). (d) What memoization structure(s) would you use? (e) What would the running time of your algorithm be (you do not have to write the code). Justify in 1-3 sentences.
(a) One possible recurrence to solve this problem is:
Let f(i, j) be the maximum sum of a nearly contiguous subarray ending at index j and starting at index i or before.
Then the recurrence can be written as:
f(i, j) = max(f(i, j-1), f(i, j-2) + A[j])
This recurrence calculates the maximum sum of a nearly contiguous subarray ending at index j and starting at index i or before by considering two possibilities:
The subarray does not include the element at index j. In this case, the maximum sum is the same as the maximum sum ending at index j-1.
The subarray includes the element at index j, but skips the element at index j-1. In this case, the maximum sum is the sum of the elements ending at index j-2 plus the element at index j.
(b) Another possible recurrence to solve this problem is:
Let g(i, j) be the maximum sum of a contiguous subarray ending at index j and starting at index i or before.
Then the recurrence can be written as:
g(i, j) = max(g(i, j-1) + A[j], A[j])
This recurrence calculates the maximum sum of a contiguous subarray ending at index j and starting at index i or before by considering two possibilities:
The maximum sum of the subarray includes the element at index j. In this case, the maximum sum is the sum of the maximum sum ending at index j-1 plus the element at index j.
The maximum sum of the subarray does not include the element at index j. In this case, the maximum sum is simply the element at index j.
(c) To calculate the final overall answer, we can input the values 0 and n-1 into both recurrences, where n is the length of the array A. This will give us the maximum sum of a nearly contiguous subarray that starts at the beginning of the array and ends at the end of the array.
(d) To implement these recurrences using memoization, we can use a two-dimensional array to store the calculated values of f and g. The array can be initialized with values of 0 for all indices, and then we can fill in the values starting from the bottom right corner and working our way towards the top left corner.
(e) The running time of this algorithm would be O(n^2), because we need to calculate the values of f and g for every possible pair of indices i and j. This requires O(n^2) time in the worst case.
the parallelism of a multithreaded computation is the maximum possible speedup that can be achieved on any number of processors
The greatest speedup that any number of processors may achieve is the parallelism T1/T8. For any number of processors more than the parallelism T1/T8, perfect linear speedup cannot be achieved.
What does a computation that uses several threads do?The overall amount of time needed to complete a multithreaded computation on a single processor is called the work. Therefore, the work is an accounting of the total time spent on each thread.
What does a parallel computer accomplish?The total quantity of computing effort that is completed is referred to as work in physics. With P processors, an ideal parallel computer can complete up to P units of work in one time step.
To know more Parallelism T1/T8 visit :-
https://brainly.com/question/29190324
#SPJ4
Which of the following blocks would most likely be used to create a string constant from scanned code?
Question 15 options:
{ append_scan(yytext); return TOKEN_STRING; }
{ return TOKEN_STRING; }
{ append_scan(yytext); return TOKEN_STRING; }
{ $$ = createLiteral(scanned_text); }
The blocks that would most likely be used to create a string constant from scanned code is { append_scan(yytext); return TOKEN_STRING; }. The correct option is c.
What is scanned code?Code scanning makes it possible to find vulnerabilities and fix them before they are released into production, removing the cybersecurity risks they present.
When scanning a string, the literal "EOL" means "end of the line." When Python encounters an EOL error, it means that it has reached the end of a line in a string. You might have done this by forgetting the closing quotes or by trying to make a string span more than one line. Single or double quotes around strings.
Therefore, the correct option is c, { append_scan(yytext); return TOKEN_STRING; }.
To learn more about scanned code, refer to the below link:
https://brainly.com/question/15098539
#SPJ1
in organisations that generate large number of transactions,.............are often a top priority in database designa. relationships among entitiesb.naming conventionsc.logical design standardsd.high processing speeds
In businesses that produce a lot of transactions, high processing speeds are frequently given top importance in database design.
Can I have ADHD if my processing speed is fast?No matter what researcher A or B chooses to name it—sluggish cognitive tempo, pure inattentive ADHD, whatever—you can still be highly intelligent. High processing speeds are even possible.
What is Processor Speed and Why Is It Important?When comparing computers, one of the most crucial factors to take into account is the processor speed (CPU speed). The CPU is frequently referred to as "the brain" of your computer, thus keeping it in good working order is crucial to the durability and functionality of your machine.
To know more Database design visit :-
https://brainly.com/question/14274993
#SPJ4
