7. Explain how to use hashing to check whether all elements of a list are distinct. What is the time efficiency of this application? Compare its efficiency with that of the brute-force algorithm (Section 2.3) and of the presorting-based algorithm (Section 6.1).

Answers

Answer 1

There is an efficient algorithm to test whether an integer is prime the basis of modern cryptography is the fact that factoring large numbers is computationally difficult. No algorithm is efficient for that purpose.

Cryptanalysis is the art of deciphering encrypted messages, analyzing cryptographic protocols, and cracking codes. Cryptanalysis may be thought of as the opposite of cryptography, which is the study of making encrypted messages and designing secure communication protocols.

The strength of a hash algorithm can be measured by comparing it to the effort required for a brute-force attack. To demonstrate this, the difficulty of finding a message with a given hash value may be compared to the difficulty of finding a message with that same hash value using brute-force methods.

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Related Questions

Almost everywhere you look, you see people using mobile devices. You cannot drive down the street, sit in a restaurant, play in a park, or shop without seeing someone talking on the phone, checking messages, or sending texts. These mobile devices range from watches to phones, tablets, and small handheld computers, and each must have an operating system to manage the hardware, software, and user interface. ABC Inc. is growing and wants to enter the business in distributed operating systems and mobile app development. The chief information officer (CIO) of the company knows that you are the expert in these areas and wants you to provide a report where you should do the following: Analyze 5 major characteristics of time-sharing systems and 5 major characteristics of distributed operating systems by comparing them with each other Analyze 10 constraints that are put on the operating systems for these carry-along computers (e.g., watches, phones, tablets, and so on) by comparing them with the operating systems for regular computers (e.g., desktops, workstations, and so on).

Answers

Some apps will work on different OS platforms, but many will not.

Devices using Android, iOS, and Windows Mobile Operating Systems (OS) use dedicated apps for each OS. OS providers reserve some of their key apps to the exclusive use of their devices which makes them different one from another and creates users having a bias on certain OS.  

Thus, if the manager of a company is looking for standardizing all mobile applications across different OS, that is unlikely to be possible since some apps are compatible while others are not.

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How and when or with what synchronization do I always use the programming languages HTML, PHP, CSS, JAJA, JAVASCRIPT, PYTHON AND OTHERS, BECAUSE THEY ARE USED ASSETS in the creation of web pages?

Answers

HTML, CSS, and JavaScript are three of the most commonly used programming languages for creating web pages. HTML is used for creating the structure and content of a web page, while CSS is used for styling and formatting the content, and JavaScript is used for adding interactivity and dynamic features to the page. PHP and Python are two other programming languages that are often used for web development, with PHP being used for server-side scripting and Python being used for both server-side and client-side scripting. The choice of programming languages and synchronization depends on the specific needs and requirements of the project, as well as the preferences and skills of the developer.


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When replacing the motherboard of an hp which type of motherboard you use

Answers

Answer:

When replacing the motherboard of an HP computer, you need to make sure that the new motherboard is compatible with the computer's model number and specifications. The best option would be to use a motherboard that is specifically designed for your computer model or one that meets the same specifications as the original motherboard. You can usually find this information by checking the user manual or contacting HP support. It's important to ensure that the replacement motherboard has the same socket type as the old motherboard to ensure that the processor is compatible. Additionally, you need to make sure that the new motherboard has the same or compatible ports, such as USB, audio, and Ethernet, to ensure that all the peripherals can be connected to the computer.

Codehs 9.4.6 word counts

Answers

The amount of words in a document or passage of text is referred to as the word count.

Why is word count important?

When a manuscript must keep inside a specified amount of words, word counting may be required. This may be especially true in education, judicial procedures, media, and advertising.

The word count is significant since it allows you to choose your readers. For example, if you create a novel that is 100,000 words long, there will inevitably be some readers who will find it unsuitable (due to the word length).

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One advantage of using eNotes to take notes is that students can
O use a variety of editing features.
O back up files and store them.
O restore lost or damaged files.
set up alarms and reminders.

Answers

One advantage of using eNotes to take notes is that students can

use a variety of editing features.back up files and store them. restore lost or damaged files.set up alarms and reminders.What is eNotes?

eNotes frequently specify a range of editing forms, to a degree highlighting, marking, bolding, italicizing, accumulating countenances and diagrams, and more, to help scholars tailor-make their notes and form ruling class more visually attractive and noteworthy.

eNotes maybe surely saved and stocked electronically, that means juniors forbiddance have to take the trouble lost tangible copies or forgetting ruling class in.

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Chapter 7: Use a file to save the data
Update the program so it reads the player data from a file when the program starts and
writes the player data to a file anytime the data is changed.
Console
MENU OPTIONS
1 Display lineup
Add player
2
3 Remove player
4

5
6
7
POSITIONS
C, 1B, 2B, 3B, SS, LF, CF, RF, P
====
Menu option: 1
Player
1
2
4
Move player
Edit player position
Edit player stats
Exit program
8
9
Tommy
Mike
Donovan
Buster
Brandon
Brandon
Alex
Austin
Kevin
Baseball Team Manager
Menu option: 7
Bye!
Specifications
POS
3B
RF
2B
с
1B
SS
LF
CF
P
Use a CSV file to store the lineup.
AB
1316
563
1473
4575
3811
4402
586
569
56
H
360
168
407
1380
1003
1099
160
147
2
AVG
0.274
0.298
0.276
0.302
0.263
0.25
0.273
0.258
0.036
======
Store the functions for writing and reading the file of players in a separate module
than the rest of the program.

Answers

To store and update player data in a file:

Use a CSV file to store player data.Create a separate module to store the functions for writing and reading the file.Read the player data from the file when the program starts.Write the player data to the file anytime it is changed.Use concise code to ensure efficiency.What is a Program?

A program is a collection of instructions crafted in the proper programming language to order the computer system to fulfill an exact duty or attaining a predetermined output.

Programs vary from simplistic scripts to advanced software systems and applications – all of which are used for automating undertakings, modifying data, designing user interfaces.

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For Questions 2-4, consider the following program:
def trylt(x, y = 1):
return 10 * × * y
#MAIN
n = int(input('Enter a number: ')
ans = trylt(n) + 1
print (ans)
What is output if the user enters -3?

Answers

Note that the correct output when the user enters -3 is -29. However, there must be some modifications to the code.

Why is this so?

Note that ff the user inputs -3, the software will produce an error message due to a syntax problem in the function declaration.

In the function definition, the multiplication operator (*) is substituted with the multiplication sign (), which is not a valid Python operator.

To correct the error, replace the multiplication sign () with the multiplication operator (*), as seen below....

def trylt(x, y=1):

   return 10 * x * y

n = int(input('Enter a number: '))

ans = trylt(n) + 1

print(ans)

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Which device connects two or more computer network segments to help reduce network congestion?
O A. switch
B.
О с.
O D.
repeater
bridge
modem

Answers

The device that connects two or more computer network segments to help reduce network congestion is

B. bridge

What is a bridge

A bridge is a device that connects two or more computer network segments to help reduce network congestion by dividing a large network into smaller segments.

Bridges operate at the data link layer of the osi model and can filter and forward data packets between different network segments based on the mac media access control addresses of the devices connected to the network

By limiting the flow of data between network segments bridges help to reduce the amount of network traffic and improve overall network performance

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What tab must be configured so a user can obtain remote access

Answers

Answer: Dial-in tab

Explanation:

Click start,  point to Administrative Tools, and then click Active Directory Users and Computers. Right-click the user account that you want to allow remote access, and then click Properties. Click the Dial-in tab, click Allow access, and then click OK.

What is an Input device

Answers

An input device is a physical unit which provides data or instructions to a computer system or its associated electronics. These gadgets allow people to communicate with the machine and feed information in a form that can be computed by the CPU (Central Processing Unit).

Common examples of input devices include:

Keyboard: This apparatus facilitates users to type text and orders into a PC through pushing keys.

Mouse: This tool serves to control the relocation of a pointer or cursor on the monitor and select any online objects to manipulate.

Touchscreen: A display panel which can identify the spatial location and presence when touched inside the given region.

Scanner: It lets one digitalize hard documents, photographs or images which may then be processed and held on a computer.

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Find the following 1+1

Answers

Note that 1 + 1 is = 2. This is called addition in Math.

Why is addition important?

Adding numbers is a fundamental mathematical idea that is required for even the most basic difficulties in our daily lives. One of the most typical uses is when we work with money, such as adding up invoices and receipts.

Many different types of issues are represented and solved using addition and subtraction. Addition and subtraction may be used to depict a wide range of situations. It is critical to learn how to detect these situations and depict them symbolically, building on whole-number counting.

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