The six coin denominations are stored in the coin Denominations array, decreasing in value. The array's denominations are represented by the number of coins in the num Coins variable.
How can a coin change issue be resolved?The coin change problem has two solutions: the first is a naive solution, which is a recursive solution, and the second is a dynamic solution, which is an effective solution for the coin change problem.
void ExactChange(int* coinsArray, int* changeAmount) Int numCoins = sizeof(coinDenominations) / sizeof(coinDenominations[0]); int coinDenominations[] = 100, 50, 25, 10, 5, 1;
Coins Array[i] = change Amount / coin Denominations[i] for (int I = 0; I num Coins; i++); change Amount = change
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which of the following is the correct html code to create a hyperlink that displays and links to ?
To create a hyperlink that displays and links to use: href=" " tag.
A hyperlink, which is used to link from one website to another, is defined by the a href=" " element. The href attribute, which denotes the location of the link, is the most significant property of the a href=" " element. Use the a> and /a> tags, which are used to specify links, to create a hyperlink in an HTML page. The a> tag denotes the beginning of the hyperlink, while the /a> tag denotes its conclusion.
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In an IPv4 Packet header, the Identification field contains a unique identifier for each packet; however, packets are sometimes fragmented further by routers to transvers a network that supports a smaller packet size. What happens to the value of the Identification field in a packet header if the packet is further fragmented?
If the packet is further fragmented, then each fragment of the original packet maintains the original packet maintains the original ID value in the header Identification field.
What is an IPv4 Packet header?A packet header for an IPv4 (Internet Protocol version 4) application contains details about the application, including usage and source/destination addresses. 20 bytes of data and 32 bits are the typical sizes for IPv4 packet headers.
A packet is a data unit that can have either fixed or variable lengths and is used in network communications. Each packet is made up of three parts: the header, the body, and the trailer.
Application, data type, and source/destination addresses are just a few of the many multipurpose fields that make up a 20-byte header's information about specific related objects. As an example, here are the header fields' descriptions:
The Internet header format is included and only four packet header bits are used in this version.Internet header's size This 32-bit field is used to store data regarding IP header length.Learn more about IPv4 packet headers
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you must keep track of some data items. your options are: a. a singly linked list. upon insertion the list is searched so the item can be placed in the proper location to maintain sorted order. b. a binary search tree. For the following scenarios which of these options is best? justify your selection. 1. The items arrive with values having a uniform random distribution. 10000 insertions are performed, followed by 2 searches. 2. The items are guaranteed to arrive already sorted from highest to lowest (i.e., whenever an item is inserted, its key value will always be less than that of the last record inserted). A total of 10000 insertions are performed, followed by 100 searches.
One data item and one pointer are present in each node of a singly-linked list. "Null" is the value of the pointer in the final node (or the address 0).
An empty list is created when Head = Null.
A single-item list is contained in the Head -> 13 -> Null section.
Two things are listed at Head -> 13 -> 42 -> Null.
Depending on the data, there are times when we wish to keep our singly-linked list in some sort of order. Then, to locate the correct site, we must browse the list. For instance, if we have Head -> 13 -> 42 -> 76 -> 101 -> Null and want to insert the value 53, we must insert it between 42 and 76, and to achieve this, we want a pointer to the node holding 42.
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a specialty search engine lets you search online information sources that general search engines do not always access.
A specialty search engine is a search tool that focuses on specific topics or types of content, allowing users to find information that may not be easily accessible through general search engines.
Specialty search engines are designed to provide users with a more targeted and focused search experience. They are often created to serve specific audiences or to address particular topics or types of content. For example, some specialty search engines focus on scientific research, while others are designed for searching job listings, news articles, or social media content.
These search engines use a variety of specialized algorithms and search techniques to help users find the information they are looking for quickly and efficiently. In many cases, specialty search engines can provide more accurate and relevant search results than general search engines, making them a valuable tool for users with specific information needs.
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which of the following is the maximum number of primary partitions that can be created on a single hard disk drive?
The maximum number of primary partitions that can be created on a single hard disk drive is Option B. 8
The maximum number of primary partitions that can be created on a single hard disk drive is 8. This is due to the limit imposed by the Master Boot Record (MBR) partitioning system. MBR is the traditional partitioning system used in PC-compatible computers, which limits the number of primary partitions to a maximum of four. However, if an extended partition is created, it can contain up to four logical partitions, bringing the total number of primary partitions to 8.
Here's the full task:
Which of the following is the maximum number of primary partitions that can be created on a single hard disk drive?
Choose the right option:
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14.1.1: calling a recursive function. write a statement that calls the recursive function backwards alphabet() with input starting letter. sample output with input: 'f' f e d c b a
·def backwards alphabet(curr_letter):if curr_letter = 'a':print(curr letter)else:print(curr letter)prev_letter = chr{ord (curr letter) - 1} backwards alphabet(prev letter) starting letter = input( ) backwards alphabet(starting letter).
Define recursion using an example.Recursion is the process of defining a problem (or its solution) in terms of (a simpler version of) oneself. Consider the definition of the term "find your way back home": "If you are home, stop moving." Your journey will end in step one.
What Does the Syntax of Recursion Mean?Recursion is the repetition of items in a self-similar way. When a programme allows you to call a procedure inside another function, this is referred to in programming languages as a recursive call of the procedure. /* Function calls itself */; void recursion(); recursion(); int main(); recursion();
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Research consistently points out that project success is strongly affected by the degree to which a project has the support of top management. The following are ways a project manager can manage upward relationships EXCEPT
Never ignore the chains of command
The ways a project manager can manage upward relationships include building trust, involving top management in the decision-making process, seeking feedback, managing expectations, and communicating effectively. "Never ignore the chains of command" is not a way to manage upward relationships.
Managing upward relationships is critical to project success, and a project manager can manage these relationships effectively by building trust with top management, involving them in the decision-making process, seeking feedback, managing expectations, and communicating effectively. However, ignoring the chains of command can cause conflict and confusion. A project manager must respect the chain of command and understand that decisions made by top management are crucial to the success of the project. By working closely with top management and building positive relationships, a project manager can ensure that the project has the support it needs to succeed.
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the effectiveness of new online ad programs needs to be evaluated based on the frequency at which a customer clicks those ads. identify the most effective and efficient method to analyze this data
The correct answer here is probably that, the data must be saved in batches and analyzed a few hours later. This involves a batch processing method.
Automatically executing software jobs in batches is a technique known as computerized batch processing. Although users must submit the jobs, processing the batch does not require further user input. Depending on the resources that are available on the computer, batches may run automatically at predetermined times. Batch processing was supported by Compatible Time-Sharing System (CTSS), the first all-purpose time sharing system. This made the switch from batch processing to interactive computing easier. The quantity of work units to be handled in a single batch operation is referred to as the batch size.
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write the definition of function named skipfact. the function receives an integer argument n and returns the product n * n-3 * n-6 * n-9 etc down to the first number less than or equal to 3 for example skipfact(16) will return the result of 16 * 13 * 10 * 7 * 4 * 1. if n is less than 1 then the function should always return 1. just type the function definition, not a whole program. that means you'll submit something like the code below int skipfact(int n)
The definition of the function skipfact is int skipfact(int n). The function takes an integer n as an input and outputs the product of n * n-2 * n-5 * n-9, etc., until it reaches the first value less than or equal to 3.
Here's the definition of the skipfact function in C++ that meets the given requirements:
c++
Copy code
int skipfact(int n) {
int product = 1;
for (int i = n; i > 0 && i > 3; i -= 3) {
product *= i;
}
return product;
}
This function takes an integer n as an argument and returns the product of n * (n - 3) * (n - 6) * (n - 9) and so on, until the first number less than or equal to 3. If n is less than 1, the function returns 1.
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which of the following mechanisms is considered a specialized variation of the cloud usage monitor mechanism
Virtualization monitor is the appropriate response. A specialised version of the usage monitor method is the virtualization monitor.
In computing, the process of producing a virtual counterpart of something at the same abstraction level includes virtualizing computer hardware platforms, storage systems, and network resources. The concept of virtualization first emerged in the 1960s as a way of rationally allocating mainframe computer system resources to various applications. IBM CP/CMS is a pioneering and effective case in point. Each user had a virtual standalone System/360 machine thanks to the control programme CP. The term's definition has expanded since that time. The development of an operating system-equipped virtual machine that mimics a real computer is known as hardware virtualization or platform virtualization.
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assume that ip has been declared to be a pointer to int and that enrollment has been declared to be an array of 2e elements. assume also that section has been declared to be an int and has been initialized to some value between 5 and 10 write a statement that makes ip point to the element in the array indexed by section.
A statement that makes ip point to the element in the array indexed by section is , ip = &enrollment[section]; .
What is ip?IP stands for internet protocol in this context. It is a protocol specified in the TCP/IP model that is used to send packets from source to destination. Based on the IP addresses present in the packet headers, IP's primary function is to deliver packets from the source to the destination.
IP specifies the packet structure that conceals the data that must be delivered as well as the addressing method that identifies the source and destination of the datagram.
The connectionless service is provided by an IP protocol, which is accompanied by two transport protocols, namely TCP/IP and UDP/IP. For this reason, the internet protocol is also known as TCP/IP or UDP/IP.
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a company executive has just bought a new android mobile device. she wants you to help her make sure that it is protected from malware threats. which of the following statements are true in regards to protecting android devices? (select two.)
The options available and important to use to protect Android devices are: Anti-virus apps are available for purchase from Android app stores. App reviews and ratings will help you choose an effective anti-virus app.
What is malware?Malware is short for "malicious software". It is any type of software designed to harm, exploit, or invade a computer system, network, or device without the owner's knowledge or consent. Malware can take many forms, including viruses, worms, Trojan horses, spyware, ransomware, adware, and other types of malicious software.
Here,
It is important to use anti-virus apps on Android devices to protect against malware threats. The effectiveness of anti-virus apps can vary, so it is important to research and choose a reputable app based on reviews and ratings.
It is not recommended to solely rely on the built-in security features of the Android operating system.
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Complete question:
A company executive has just bought a new Android mobile device. She wants you to help her make sure it is protected from malware threats.
What options are available and important to use to protect Android devices? (Select TWO.)
Android mobile devices, like iOS devices, are not susceptible to malware threats.
Anti-virus apps are available for purchase from Android app stores.
Anti-virus apps for Android have not been developed yet.
App reviews and ratings will help you choose an effective anti-virus app.
Any Android anti-virus app will be about as effective as any other.
Android operating system updates are sufficient to protect against malware threats.
code need to be written in c++
Modify the list template example as follows. Create a new templated class Collection that contains this list as a dynamically allocated member, i.e, the list contains a pointer to the first element. You are not allowed to use STL containers. You are not allowed to use double-linked list. That is, you should use single-liked list only as in the original code. The class has to implement the following methods:
add(): takes an item as the argument and adds it to the collection, does not check for duplicates.
remove(): takes an item as the argument and removes all instances of this item from the collection.
last(): returns the last item added to the collection.
print(): prints all items in the collection. The printout does not have to be in order.
bool equal(const Collection&, const Collection&) : compares two collections for equality. Implement as a friend function. You may implement it only as a specialized template. You may not implement it as a general template. See this for examples.
Make sure that your templated list operates correctly with the following code.
Templated member functions could be coded inline or outside. However, either way, they have to be in the header file.
You do not have to implement the big three functions (copy constructor, destructor, overloaded assignment). But if you do, you have to implement all three.
Milestone. Collection that successfully implements add().
IOstream is a C++ standard library library that comprises classes, objects, and methods that aid in input and output operations. It reads and writes data to and from streams like files and standard input and output. The C++ Standard Template Library includes IOstream (STL).
What is iostream?IOstream is a library in the C++ Standard Library. It is a header file that provides a collection of classes and functions that enable the input and output of data streams. It provides classes that support both text- and binary-oriented input and output operations in a uniform manner.
// Header file
#include <iostream>
template <typename T>
class Collection
{
private:
struct Node
{
T item;
Node *next;
};
Node *head;
Node *last;
public:
Collection();
~Collection();
void add(const T& item);
void remove(const T& item);
T last() const;
void print() const;
friend bool equal(const Collection&, const Collection&);
};
// Source file
#include "Collection.h"
template <typename T>
Collection<T>::Collection()
{
head = nullptr;
last = nullptr;
}
template <typename T>
Collection<T>::~Collection()
{
Node *current = head;
Node *next;
while (current != nullptr)
{
next = current->next;
delete current;
current = next;
}
head = nullptr;
last = nullptr;
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A tech is installing a cable modem that supplies internet for a home office.
Which of the following cabling types would be used to connect the cable modem to the cable wall outlet?
1)RG6 2)Multi-mode fiber 3)CAT 5e 4)CAT 6a
The cabling type that would be used to connect the cable modem to the cable wall outlet is RG6.
What is modem?A modem is a device that modulates analog carrier signals to encode digital information and demodulates such signals to decode the transmitted information. In simpler terms, a modem is a device that allows computers to communicate with each other over a telephone or cable line. It converts digital signals generated by a computer into analog signals that can be transmitted over phone or cable lines, and also converts incoming analog signals back into digital signals that the computer can understand. Modems are used for internet access, sending and receiving faxes, and connecting to remote networks.
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With ______ voice mail, users can view message details, and in some cases read message contents without listening to them.Pilihan jawabantextvirtualvisualinterpreted
The answer is Visual.
fill in the blank. a(n)___solution makes all of the computing hardware resources available, and the customers, in turn, are responsible for installing and managing the systems, which they can normally do, for the most part, over the internet.
The clients are in charge of installing and operating the systems after the cloud solution makes all of the computing hardware resources available, which they can typically accomplish, for the most part, online.
What is hardware
Hardware refers to physical components of a computer system. This includes the internal components such as the motherboard, CPU, memory, and storage, as well as any external peripherals such as a mouse, keyboard, monitor, printer, and scanner. All of these pieces of hardware interact with each other and with the operating system to form a complete computing system. Hardware can also refer to physical objects that are connected to the computer, such as a router, server, or network switch. Computer hardware is necessary for any type of computer system to properly, and it is usually the first step in setting up a computer system.
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Given an array arr of n positive integers, the following operation can be performed any number of times. Use a 1-based index for the array.
- Choose any isuch that 2≤i≤n. - Choose any x such that 1≤x≤ arr [i] - Set arr[i-1] to arr[i-1]+x - Set arr[i]to arr[i]-x Minimize the maximum value of arr using the operation and return the value. Example n=4
arT=[1,5,7,6]
Assuming 1-based indexing. One optimal sequences is: Operation 1: choose i=3,x=4 (note that x<=arr[3], i.e. 4<7). - Replace arr[i-1] with arr[i−1]+x or 5+4=9 - Replace arr[i] with arr[i]−x or 7−4=3 - The array is now [1,9,3,6] (maximum =9) Operation 2:i=2,x=4 - Replace arr[2-1] with 1+4=5 - Replace arr[2] with 9−4=5 - The array is now [5,5,3,6] ( maximum =6 ) - Operation 3:i=4,x=1, the resulting array is [5,5,4,5] ( maximum = 5) The minimum possible value of max(arr) is 5 after operation 3. Function Description Complete the function getMaximum in the editor below. getMaximum has the following parameter: int arr[n]: an array of integers Returns int: the minimum maximum value possible Constraints - 1≦n≦10^5
- 1≤ar[i]≤10^9
We can utilise binary search to get the smallest achievable value of the maximum in order to reduce the array's maximum value. The lower bound can be set to 1 and the upper bound can be set to the array's total number of elements.
What is the price of an array of n positive integers using indexing on the basis of 0?Reduce Array Cost Assuming O-based indexing, the cost of an array of n positive integers is len(arr) -1 (arr; - arr;-1) where len(arr) is the array's size.
What is an array's maximum index?An array's highest index is always array. -1 length (or bookShelf. length - 1 in your specific example).
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You need to connect several network devices together using twisted pair Ethernet cables. Assuming Auto-MDI/MDIX is not enabled on these devices, drag the appropriate type of cabling on the left to each connection type on the right.
Left = Workstation to switch; Router to switch; Switch to switch; Workstation to router; Router to router
Right = Straight-through Ethernet cable; Straight-through Ethernet cable; Crossover Ethernet cable; Crossover Ethernet cable; Crossover Ethernet cable
The wiring of the cable determines whether it is a straight-through or crossover Ethernet cable. A crossover Ethernet cable is used to connect two similar devices directly to each other, whereas a straight-through Ethernet cable is used to connect a device to a switch or router.
Left:Straight-through Ethernet connection from the switch to the workstation.Straight-through Ethernet cable from the router to the switch.from switch to switch Ethernet crossover cable.Computer to router: Ethernet crossover cable.between routers: Ethernet crossover cable.Right:Direct Ethernet cable: Workstation to switch, Router to switch.Ethernet crossover cable Workstation to router, router to router, switch to switch.To know more about Ethernet cable visit:
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Write two statements to read in values for my_city followed by my_state. Do not provide a prompt. Assign log_entry with current_time, my_city, and my_state. Values should be separated by a space. Sample output for given program if my_city is Houston and my_state is Texas: 2014-07-26 02:12:18: Houston Texas Note: Do not write a prompt for the input values.
current_time = '2014-07-26 02:12:18:'
my_city = ''
my_state = ''
log_entry =
''' Your solution goes here '''
print(log_entry)
I've tried several solutions and it is only printing out the date and time. Since the date and time is given, I figured to concatenate the city and state strings then add them under log entry however it still only prints out the date. I can't enter the actual city and state because there is a back end test where Zybooks add a different city and state. Here is what I have tried so far.
concatenated_string = my_city + ' ' + my_state
log_entry = current_time + concatenated_string
string-concatenation
Python program that shows how string variables are concatenated, other functions such as datetime() are also used to obtain the current date and time.
Python code
from datetime import datetime
if __name__ == '__main__':
# Define variablesmy_state = str()
my_city = str()
current_time = str(datetime.now())
anw = str()
anw = "y"
print("Concatenating strings")
while anw=="y":
# Reading values for my_city and my_state (prompts are not provided).print(" ", end="")
my_city = input()
print(" ", end="")
my_state = input()
# Assigning values to log_entrylog_entry = current_time+": "+my_city+" "+my_state
# Outputprint(log_entry)
while True:
print("¿Again? (y/n)", end="")
anw = input()
if (anw=="y" or anw=="n"): break
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you have a single hard drive on your laptop with a basic system volume. the volume is running out of space, and you would like to extend the space on the volume. which of the following would work best to resolve the issue?
One option to resolve the issue would be to use a partition management tool to shrink an adjacent partition and then extend the system volume into the newly created space.
However, if there are no adjacent partitions or if they contain important data, this may not be possible or advisable.Another option would be to replace the current hard drive with a larger one and clone the system volume to the new drive using a disk cloning tool. This would provide additional space on the system volume and potentially improve overall performance if the new drive is faster. However, this option would require purchasing a new hard drive and may involve additional setup and configuration steps.In either case, it is important to back up any important data before making any changes to the hard drive to avoid the risk of data loss.To know more about hard drive visit:
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Which is the correct way to declare an integer variable?
answer choices
O int x = 3;
O integer x = 3;
O integer x is 3;
O int x is 3;
int x = 3; is the correct way to declare a variable of an integer. Variables that must have an integer value are called integer variables.
Option A is correct .
A variable is what?In computing, a variable is a value that can change in response to input from the program or external factors. Most of the time, an application has instructions that tell the machine what to do and the information it needs to run.
Which three kinds of variables are there?There are typically three different kinds of variables in a laboratory experiment: dependent variables, independent variables, and controlled factors. Each of these three types of variables will be examined, as well as their connection to plant-related experimental questions.
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The following statement(s) regarding Utility Functions is/are true:
Utility Functions are usually a function of wages.
Utility increases at a decreasing rate.
The Utility Function chosen does not matter. They will all yield the same result.
Group of answer choices
I
II
III
I and III
All are true
None are true
The correct statement regarding Utility Functions is: II. Utility increases at a decreasing rate.
This statement is true because the concept of utility refers to the amount of satisfaction or happiness that a person derives from consuming a good or service, and it is generally assumed that the more a person has of a good or service, the less additional utility they will get from each additional unit. This is known as the principle of diminishing marginal utility, which implies that utility increases at a decreasing rate.
Statements I and III are incorrect because:
I. Utility Functions are usually a function of wages: While it is true that utility functions can be used to model consumer behavior, they are not necessarily a function of wages, and can be a function of other variables such as prices, income, or other attributes of the goods or services being consumed.
III. The Utility Function chosen does not matter. They will all yield the same result: This statement is false because the specific form of the utility function does matter, as it affects the shape of the utility curve and the resulting optimal consumption bundle. Different utility functions can lead to different results, even if they represent the same underlying preferences.
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On the Cities worksheet, click cell E13. Depending on the city, you will either take a shuttle to/from the airport or rent a car. Insert an IF function that compares to see if Yes or No is located in the Rental Car? Column for a city. If the city contains No, display the value in cell F2. If the city contains Yes, display the value in the Rental Car Total (F4)
The completed formula should look like this: =IF(F3="No", F2, F4) as per the given data.
What is if function?The IF function is a popular Excel function that allows you to make logical comparisons between a value and what you expect. As a result, an IF statement can have two outcomes.
To insert the IF function in cell E13 to compare the Rental Car? column for a city and display the appropriate value, follow these steps:
Click on cell E13.Type the equal sign (=) to begin the formula.Type IF, followed by an opening parenthesis.Type F3="No", followed by a comma. This checks if the value in cell F3 (Rental Car?) is equal to "No".Type F2, followed by a comma. This displays the value in cell F2 if the Rental Car? column for the city contains "No".Type F4, followed by a closing parenthesis. This displays the value in cell F4 if the Rental Car? column for the city contains "Yes".Press Enter to complete the formula.Thus, "=IF(F3="No", F2, F4)" can be the complete function.
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Implement a program that reads in a text file, counts how many times each word occurs in the file and outputs the words (and counts) in the increasing order of occurrence, i.e. the counts need to be output in sorted order rare words first. Word is any sequence of alphanumeric characters. Whitespace and punctuation marks are to be discarded. That is, the punctuation marks should not be counted either as a part of the word or as a separate word. You are free to make your program case sensitive (Hello and hello are counted as separate words) or case insensitive. File name is supplied on command line. You are to use the following classes.Using vectors is not allowed. You may use standard sorting algorithms or implement insertion sort form scratch. For the second class (WordList), implement a copy constructor (implementing deep copy), destructor and an overloaded assignment (either classical or copy-and-swap). Make sure your class works correctly with the following code. For your constructors, use member initialization lists where possible, use default values for function parameters where appropriate. Enhance class interface if necessary.
demo code:
class WordOccurrence {
public:
WordOccurrence(const string& word="", int num=0);
bool matchWord(const string &); // returns true if word matches stored
void increment(); // increments number of occurrences
string getWord() const; int getNum() const;
private:
string word_;
int num_;
};
class WordList{
public:
// add copy constructor, destructor, overloaded assignment
// implement comparison as friend
friend bool equal(const WordList&, const WordList&);
void addWord(const string &);
void print();
private:
WordOccurrence *wordArray_; // a dynamically allocated array of WordOccurrences
// may or may not be sorted
int size_;
};
To implement a program that reads in a text file, counts how many times each word occurs in the file and outputs the words (and counts) in the increasing order of occurrence, check the code given below.
What is C++ Code?C++ is a general-purpose programming and coding language (also known as "C-plus-plus"). As well as in-game programming, software engineering, data structures, and other areas, C++ is used to create browsers, operating systems, and applications. 4 days ago
C++ Code
#include<iostream>
#include<fstream>
#include<string>
#include<vector>
using namespace std;
class WordOccurrence {
public:
WordOccurrence(const string& word="", int num=0)
{
word_=word;
num_=num;
}
bool matchWord(const string &word )// returns true if word matches stored
{
if(word.compare(word_)==0)
return true;
else
return false;
}
// increments number of occurrences
void increment()
{
num_=num_+1; //increment
}
string getWord() const
{
return word_;
}
int getNum() const
{
return num_;
}
private:
string word_;
int num_;
};
class WordList{
public:
// add copy constructor, destructor, overloaded assignment
// implement comparison as friend
friend bool equal(const WordList& list1 , const WordList& list2)
{
if(list1.size_!=list2.size_)
return false;
for(int i=0;i<list1.size_;++i)
{
bool flag=false;
for(int j=0;j<list2.size_;++j)
{
if(list1.wordArray_[i].matchWord(list2.wordArray_[j].getWord())==true)
{
flag=true;
break;
}
}
if(flag==false)
return false; //word not found in another array;
}
return true;
}
//copy constructor deep copy
WordList(const WordList&list)
{
wordArray_ = new WordOccurrence[list.size_];
for(int i=0;i<list.size_;++i)
{
//deep copy
wordArray_[i]=list.wordArray_[i];
}
this->size_=list.size_;
}
//destructor
~WordList()
{
//delete the wordArray
for(int i=0;i<size_;++i)
delete &wordArray_[i];
}
//overload = operator
void operator = (const WordList &list)
{
wordArray_ = new WordOccurrence[list.size_];
for(int i=0;i<list.size_;++i)
{
//deep copy
wordArray_[i]=list.wordArray_[i];
}
this->size_=list.size_;
}
//constructor
WordList()
{
wordArray_ = new WordOccurrence[1000];
size_=0;
}
void addWord(const string &word)
{
//check if word already present in the word array
bool flag=false;
for(int i=0;i<size_;++i)
{
if(wordArray_[i].matchWord(word)==true)
{
wordArray_[i].increment();
flag=true;
break;
}
}
if(flag==false)
{
wordArray_[size_]=word;
wordArray_[size_++].increment();
}
}
//sort using bubble sort
void sort()
{
for(int i=0;i<size_-1;++i)
{
for(int j=0;j<size_-i-1;++j)
{
//sort in rarest word order
if(wordArray_[j].getNum()>wordArray_[j+1].getNum())
{
WordOccurrence temp = wordArray_[j+1];
wordArray_[j+1]=wordArray_[j];
wordArray_[j]=temp;
}
}
}
}
void print()
{
for(int i=0;i<size_;++i)
{
cout<<"Word: "<<wordArray_[i].getWord()<<" , ";
cout<<"Count: "<<wordArray_[i].getNum()<<endl;
}
}
private:
WordOccurrence *wordArray_; // a dynamically allocated array of WordOccurrences
int size_;
};
//sanitize
bool sanitize(string &word)
{
for(int i=0;i<word.length();++i)
{
if(ispunct(word[i]))
{
//erase the punctutation
word.erase(i--,1);
}
}
//check if alpha numeric
for(int i=0;i<word.length();++i)
{
//if not alpha numeric return false
if(!isalpha(word[i])&&!isdigit(word[i]))
return false;
}
return true;
}
int main(int argc,char **argv)
{
if(argc<1)
{
cout<<"Not enough arguments\n";
return -1;
}
//open the file read the words
ifstream fin(argv[1]);
if(!fin)
{
cout<<"Cannot open the file\n";
return -1;
}
WordList list;
string *word = new string();
while(fin>>*word)
{
if(sanitize(*word)) //if a valid word then only add to list
{
list.addWord(*word);
}
word=new string();
}
//sort the data using bubble sort
list.sort();
list.print();
return 0;
}
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Assume that you are creating an application for WSU. You would like to write a Haskell function prereqFor that takes the list of courses (similar to above) and a particular course number and returns the list of the courses which require this course as a prerequisite. The type of prereqFor should be prereqFor :: Eqt => [(a, [t])) -> t -> [a]. (Hint: You can make use of exists function you defined earlier.) Examples: > prereqFor prereqsList "Cpt S260" ["Cpt S360", "Cpt S370"] > prereqFor prereqsList "Cpt S223" ["Cpt$260", "Cpt5315", "Cpts321","Cpts322", "Cpts350", "Cpt5355", "Cpt5360", "Cpt S427"] > prereqFor prereqsList "Cpt S355" [] > prereqFor prereqsList "MATH216" ["Cpt S223", "Cpts233", "Cpts317","Cpt S427"]
Here's an implementation of the prereqFor function in Haskell, which takes a list of courses and a course number and returns a list of courses which require the given course as a prerequisite.
What is function?In coding, a function is a self-contained block of code that performs a specific task. Functions are a fundamental building block in programming, allowing developers to break down their code into smaller, more manageable pieces. Functions typically take one or more inputs (known as arguments or parameters) and produce an output, which can be used by other parts of the program.
Here,
The prereqFor function takes a list of pairs, where each pair consists of a course and a list of prerequisite courses, and a course number. The function uses the exists function (which we assume has been defined previously) to find the pair in the list that corresponds to the given course number, and then returns the list of prerequisite courses for that course.
Here are some examples of how to use the prereqFor function:
prereqFor :: Eq a => [(a, [a])] -> a -> [a]
prereqFor prereqsList courseNum = exists (\(course, prereqs) -> course == courseNum)
prereqsList >>= snd
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A student wrote the following program to remove all occurrences of the strings "the" and "a" from the list wordList.
Line 1: index ← LENGTH (wordList)
Line 2: REPEAT UNTIL (index < 1)
Line 3: {
Line 4: IF ((wordList[index] = "the") OR (wordList[index] = "a")) Line 5: {
Line 6: REMOVE (wordList, index)
Line 7: }
Line 8: }
While debugging the program, the student realizes that the loop never terminates. Which of the following changes can be made so that the program works as intended?
answer choices
Inserting index ← index + 1 between lines 6 and 7
Inserting index ← index + 1 between lines 7 and 8
Inserting index ← index - 1 between lines 6 and 7
Inserting index ← index - 1 between lines 7 and 8
The problem with the given program is that it enters an infinite loop because the value of the index variable never changes, and the loop condition (index < 1) is always true.
To fix this, we need to make sure that the value of the index variable is updated appropriately. Specifically, we need to decrement the index variable by 1 each time an element is removed from the wordList.
Therefore, the correct change to make is to insert the statement "index ← index - 1" between lines 6 and 7. This will ensure that the index variable is decremented after an element is removed, and the loop will eventually terminate when the index variable becomes less than 1.
So the corrected code will be as follows:
perl
Copy code
index ← LENGTH (wordList)
REPEAT UNTIL (index < 1)
{
IF ((wordList[index] = "the") OR (wordList[index] = "a")) {
REMOVE (wordList, index)
index ← index - 1
}
index ← index - 1
}
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Write a function named ilovepython that prints out I love Python three times. Then, call that function. sum.
Here's an example implementation of a function named ilovepython in Python that prints out "I love Python" three times:
def ilovepython():
print("I love Python")
print("I love Python")
print("I love Python")
Here's an example of calling the ilovepython function in Python:
ilovepython()
Coding refers to the process of creating instructions (in the form of code) that a computer can understand and execute. It involves using programming languages, which are a set of rules, symbols, and syntax used to write computer programs.
The process of coding involves taking a problem or task and breaking it down into smaller, more manageable steps that a computer can follow. These steps are written in a programming language, such as Python, Java, or JavaScript, using an integrated development environment (IDE) or a text editor.
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(TCOS 1-6) Suppose ArrayList x contains two strings [Beijing, Singapore]. Which of the following methods will cause the list to become [Beijing, Chicago, Singapore]?
A. x.add("Chicago")
B. x.add(2, "Chicago")
C. x.add(0, "Chicago")
D. x.add(1, "Chicago")
Answer:
The correct method that will cause the list to become [Beijing, Chicago, Singapore] is B.
Explanation:
x.add("Chicago") will add "Chicago" to the end of the list, resulting in [Beijing, Singapore, Chicago]
x.add(2, "Chicago") will add "Chicago" at index 2, resulting in [Beijing, Singapore, Chicago]
x.add(0, "Chicago") will add "Chicago" at the beginning of the list, resulting in [Chicago, Beijing, Singapore]
x.add(1, "Chicago") will add "Chicago" at index 1, resulting in [Beijing, Chicago, Singapore]
Therefore, option B is the correct one.
write a script that will turn a number read off a machine into a letter quality grade the script will ask the user to enter the machine's reading the script will turn that reading into a letter grade and print that grade
Answer: (Python)
# Ask user for machine reading
reading = int(input("Enter the machine reading: "))
# Convert reading to letter grade
if reading >= 90:
grade = "A"
elif reading >= 80:
grade = "B"
elif reading >= 70:
grade = "C"
elif reading >= 60:
grade = "D"
else:
grade = "F"
# Print letter grade
print("The letter quality grade is:", grade)
Explanation:
This script first prompts the user to enter the machine reading using the input() function and converts it to an integer using int(). It then uses a series of if statements to determine the letter grade based on the reading value. Finally, it prints the letter grade using the print() function.
Devices that detect (in promiscuous mode) attempts from an attacker to gain an unauthorized access to a network or a host, to create performance degradation, or to steal information. (Choose all that apply).
O Personal FirewallsO Intrusion Detection System (IDS)
O Intrusion Prevention System (IPS)O Encapsulation Security Payload (ESP)O Authentication Header (AH)
The answer is Intrusion Detection System (IDS) and Intrusion Prevention System (IPS) that detect (in promiscuous mode) attempts from an attacker to gain an unauthorized access to a network or a host, to cause performance to suffer, or to obtain data.
What is IDS and IPS?IDS and IPS are both security systems designed to detect and prevent attacks on a network or host. IDS monitors network traffic and system logs for signs of suspicious activity, while IPS actively intervenes to block or prevent malicious traffic.
What varieties of IDS and IPS systems are there?Network-based intrusion detection system (NIPS, IDS IPS)Network behavior analysis (NBA)Wireless intrusion prevention system (WIPS)Host-based intrusion prevention system (HIPS)To know more about IDS and IPS visit:
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