Answer:
crreate a method that takes a string as a perimeter and inverts it
Write an expression that executes the loop body as long as the user enters a non-negative number.
Note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds and report "Program end never reached." The system doesn't print the test case that caused the reported message.
Sample outputs with inputs: 9 5 2 -1
Body
Body
Body
Done.
Preferred in Python
user_num = int(input())
while ''' Your solution goes here ''':
print('Body')
user_num = int(input())
print('Done.')
Answer:
user_num = 9
while user_num > -1:
print("Body")
user_num = int(input())
print("Done")
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Answer:
user_num >= 0 or 0 <= user_num
Explanation:
You want to use one of the comparison operators, to solve this problem, and in this case you're going to specifically use: >= or <=, which is "greater than or equal to" and "less than or equal to", either can be used, it just depends where you place the numbers, kind of like how 10 >= 3 and 3 <= 10 are both true.
So in this case it says "non negative" number, this means that the number is greater than or equal to 0, The reason the equal to is included is because 0 is not negative. this means that you want to include it as well. So don't do user_num > 0, since that would exclude 0, which is not negative. So you're solution for the while loop will be:
while user_num >= 0:
# code
or you can do
while 0 <= user_num:
# code
Although I would probably go with user_num >= 0, since it seems to be the most understandable at a glance, although both should work.
Consider the following language:
L={ |M is a Turing Machine and M accepts at least one palindrome,
and rejects at least one palindrome}
a. Is L a decidable language? Prove your answer.
b. Is L a recognizable language? Prove your answer.
L is a decidable language because the Turing machine accepts it.
L is a recognizable language if TM M recognizes it.
How do you know if a language is decidable?A language is said to be decidable only when there seems to exists a Turing machine that is said to accepts it,
Here, it tends to halts on all inputs, and then it answers "Yes" on words that is seen in the language and says "No" on words that are not found in the language. The same scenario applies to recognizable language.
So, L is a decidable language because the Turing machine accepts it.
L is a recognizable language if TM M recognizes it.
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What three files do you need to perform a mail merge?
HELP ASAP PLEASE!!
The 3 files you need to have for a successful mail merge are:
An Excel spreadsheet worksOutlook Contact List. Apple Contacts List or Text file, etc.What is Mail Merge?This is known to be the act of carrying out a Mail Merge and it is one where a person will need to use a Word document and a recipient list, that is an Excel workbook.
Files needed are:
Text file,address files, etc.The 3 files you need to have for a successful mail merge are:
An Excel spreadsheet worksOutlook Contact List.Apple Contacts List or Text file, etc.
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Look at the logic program below. Set a breakpoint after each commented instruction. You can also single step through the program. Answer the questions in the program.
.data
sourceword:
.word 0xAB
wordmask:
.word 0xCF
operand:
.long 0xAA
.text
.globl _start
_start:
movw sourceword, %ax
movw %ax, %bx
xorw %cx, %cx
# What's in ax?
# What's in bx?
# What's in cx?
andw wordmask, %ax
# What's in ax?
orw wordmask, %bx
# What's in bx?
xorw wordmask, %cx
# What's in cx?
movl operand, %eax
movl %eax, %ebx
movl %eax, %ecx
# What's in eax?
# What's in ebx?
# What's in ecx?
shll $3,%eax
# What's in eax?
rorl $4,%ebx
# What's in ebx?
sarl %ecx
# Now what's in ecx?
done:
Using programming knowledge, it is possible to use programming logic, we can differentiate and find the terms
Writing the code and understanding the programming logic:.data
sourceword:
.word 0xAB
wordmask:
.word 0xCF
operand:
.long 0xAA
.text
.globl _start
_start:
movw sourceword, %ax # ax=0x00AB ( move the word value of sourceword =0x00AB to ax register.)
movw %ax, %bx # bx=0x00AB ( copy the value of ax to bx register.)
xorw %cx, %cx # cx=0000 ( cx=cx XOR cx, that is clear cx register.)
andw wordmask, %ax # ax=0x008B ( ax=ax AND wordmask= 0x00AB AND 0x00CF= 0x008B)
orw wordmask, %bx # bx=0x00EF (bx=bx OR wordmask= 0x00AB OR 0x00CF= 0x00EF.)
xorw wordmask, %cx # cx=0x00CF (cx=cx XOR wordmask= 0x0000 XOR 0x00CF=0x00CF.)
movl operand, %eax # eax=0x000000AA. ( copy the 32-bit value of operand=0x000000AA to eax.)
movl %eax, %ebx # ebx=0x000000AA.( copy the value of eax to ebx.)
movl %eax, %ecx # ecx=0x000000AA. ( copy the value of eax to ecx.)
shll $3,%eax # eax=0x00000550. ( logical shift left of eax=0x000000AA by 3 bits.)
# 0x000000AA=00000000000000000000000010101010
# =>00000000000000000000010101010000=0x00000550.
rorl $4,%ebx # ebx=0xA000000A. (Rotate right ebx=0x000000AA by 4 bits.)
# 0x000000AA=00000000000000000000000010101010
3 =>10100000000000000000000000001010= 0xA000000A.
sarl %ecx # here the count value to shift the bits not mentioned.
# It is the arithmetic shift right instruction. the shifted left bits filled with MSB bit.
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Which of the following are the primary components used in machine learning? (Select Multiple Boxes)
A) A machine learning model
B) A model training algorithm
C) A model inference algorithm
D) A model integrity
E) A preparation algorith
The option that are the primary components used in machine learning are:
Option A) A machine learning model.Option B) A model training algorithm.Option C) A model inference algorithm.What are the primary element used in machine learning?The elements used in machine learning algorithm are::
Representation as it deals with how the model looks like.Evaluation deals with good models differentiation and evaluation.Optimization deals with looking for good models.Note that The option that are the primary components used in machine learning are:
Option A) A machine learning model.Option B) A model training algorithm.Option C) A model inference algorithm.Learn more about machine learning from
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Choose the output result of the below code.
Answer:
B
Explanation:
When you initialize an instance of FunEvent(tags, year) and assign it to bc. The instance variables in this case are: self.tags = ["g", "ml"] and self.year = 2022. But then you alter tags, which will also change self.tags, since self.tags is a reference to the list you passed in as an argument. This is not the case when you do year=2023 because, first of all, integers are not mutable, and also because even if somehow integers were mutable, you're not changing the object in-place, you're simply changing the where the "variable" is pointing to. So for example if you did tags = ["g", "ml", "bc"] instead of tags.append("bc"), it would also not change the value of the instance variable "tags", because you wouldn't be changing the object in-place. So when you print(bc), the instance variables will be ["g", "ml", "bc"] and 2022. When you try to print an object, it call try to convert it into a string using the __str__ magic method. In this case it will return a string formatted as "Event(tags={self.tags}, year={self.year}) which will output "Event(tags=['g', 'ml', 'bc'], year=2022)" So the correct answer is B
Explain the different hardware used by local network
The different hardware used by local network are:
Routers hubsswitchesbridges, etc.What is the role of the hardware?The hardware are tools that aids in the act of connecting a computer or device to any form of local area network (LAN).
Note that hardware components needed also are:
A network interface card (NIC) A wireless network interface controller (WNIC) A transmission medium , wired or wireless.Learn more about local network from
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Write a recursive Python function – recEmptyStack(S) for removing all the elements from a stack S
The sample recursive Python Function is given below. See the definition of a Recursive Python Function.
What is a Recursive Python Function?
A recursive function is one that defines itself in terms of itself using self-referential phrases.
This signifies that the function will keep calling itself and repeating its action until some condition is fulfilled and a result is returned.
Sample Recursive Python Function is:
def remove_all0(x,s):
while s!=[]:
if x == s[0]:
ss = [s[1]] + remove_all0(x,s[2:])
return ss
else:
s1 = [s[0]] + remove_all0(x, s[1:])
return s1
if s==[]:
return s
print(remove_all0(3,[4,3,5,6,3,2,1]))
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Follow the instructions for starting C++ and viewing the Introductory21.cpp file, which is contained in either the Cpp8\Chap11\Introductory21 Project folder or the Cpp8\Chap11 folder. (Depending on your C++ development tool, you may need to open the project/solution file first.) The program should calculate the average stock price stored in the prices array. It then should display the average price on the screen. Complete the program using the for statement. Save and then run the program.
Explanation:
I would use a for loop cycling through the array and adding the arrays values into a variable, then keep track of how many items in the array you have. Finally divide the total by the amount of stock prices and output it.
With computer technology in mind, what do you envision the
future to look like?
Answer:
They would be faster than today's computer and it technology it would easy and usefu and it would be more advanced with artificial intelligence at a rapid pace with higher technology I can say that it would be faster and easy
9. Changing from a bystander to an advocate requires
A. a large social media following.
B. a high-speed Internet connection.
C. bravery.
D. piracy.
The Bank of Commerce Caribbean (BCC) is a fairly new financial institution. It started off with one bank in Jamaica and now is opening another Jamaican branch within a month and expanding to St Kitts in the months thereafter. At present, it has a local area network connecting all of its devices. However, the main method of communication among the bank departments is printed circulars. Printed circulars are also sent to investors, stakeholders and customers. You are a member of an IT team advising the bank on its networking needs. The team consists of students from your class.
1. What is a major problem that BCC will face when it expands?
2. What are three possible reasons for this problem?
3. Use a step-by-step approach to explain how your team will work out a solution to the problem.
4. Recommend a solution to the problem facing the bank that you stated in question 1. Use posters or any other media tools that you can use competently to produce a presentation that you can show to the bank managers. 5. What challenges did you face while working out a solution, and how did you overcome them?
The major problem that BCC will face when it expands is the lack of digital coverage to all its branches because they are currently using only local area network that is connecting only on branch devices.
The three possible reasons for this problem is that:
They are just starting new and are limited in what they know.They lack exposureThey h]lack the needed technologyWhat are the factors to be considered when opening a new bank branch?The issues one need to look if opening a New Bank
Site Selection. The Nearby Businesses.Onsite Customer Experience.ATM/ITM Accessibility.Therefore, The major problem that BCC will face when it expands is the lack of digital coverage to all its branches because they are currently using only local area network that is connecting only on branch devices.
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To create a new folder, you should first?
A. create all the files that will be contained in the folder
C. navigate to the location where you want to store the
folder
B. delete any other folders in the desired location
D. close all open apps to avoid conflicts with the folder
Answer:
create a new folder when saving your document by using the Save As dialog box. With your document open, click File > Save As. Under Save As, select where you want to create your new folder. You might need to click Browse or Computer, and navigate to the location for your new folder. In the Save As dialog box that opens, click New Folder.
I receive errors in this code in eclipse and in GDB. Can someone help me? Thank you!
import java.io.*;
import java.util.*;
public class Contribution {
public void fileOperation(String inputFile, String outputFile) {
double max_contro = Double.MIN_VALUE;
double min_contro = Double.MAX_VALUE;
int total = 0;
int goal = 1000;
double current = 0.0;
// Reading from the file
try {
File file = new File(inputFile);
Scanner sc = new Scanner(file);
while (sc.hasNextLine()) {
double amt = Double.parseDouble(sc.nextLine());
current += amt;
total++;
if (amt < min_contro) {
min_contro = amt;
}
if (amt > max_contro) {
max_contro = amt;
}
if (current > goal) {
break;
}
}
} catch (Exception e) {
System.out.println("Error processing the file!");
}
double average_contro = Math.round((double) current / total);
// Writing to the file
try {
FileWriter writer = new FileWriter(outputFile, true);
BufferedWriter out = new BufferedWriter(writer);
out.write("It took " + total + " contributions to reach the goal.\nThe maximum contribution"
+ " received was $" + max_contro + ".\nThe minimum contribution"
+ " received was $" + min_contro + "\nThe average contribution amount was $"
+ average_contro + ".\nA total of $" + current + " was collected.");
out.newLine();
out.close();
} catch (Exception e) {
System.out.println("Error processing the file!");
}
}
// Driver method to test the code
public static void main(String[] args) {
String inputFile = "input.in";
String outputFile = "output.out";
Contribution obj = new Contribution();
obj.fileOperation(inputFile, outputFile);
}Input File: (Copy and Paste)
150
165
12
16
14
189
13
3
74
59
53
20
26
91
40
16
71
4
100
165
82
30
49
10
85
61
30
25
2
6
9
47
8
50
13
Output:
}
Debugging a code involves locating the errors in a code segment, and fixing them.
How to debug the code segment?When the program was run on GDB, the program give the following error
Main.java:62: error: reached end of file while parsing
This means that we need to add a closing brace to the end of the program.
A second run after fixing this error gives another set of errors:
Main.java:4: error: class Contribution is public, should be declared in a file named Contribution.java
It should be noted that GDB only allows you to create a program with the file name Main i.e. Main.java
This means that we change the Contribution keywords in the program to Main.
After this has been done, the program gives the following output:
It took 17 contributions to reach the goal.
The maximum contribution received was $189.0.
The minimum contribution received was $3.0
The average contribution amount was $60.0.
A total of $1012.0 was collected.
So, the corrected program is:
import java.io.*;
import java.util.*;
public class Main {
public void fileOperation(String inputFile, String outputFile) {
double max_contro = Double.MIN_VALUE;
double min_contro = Double.MAX_VALUE;
int total = 0;
int goal = 1000;
double current = 0.0;
// Reading from the file
try {
File file = new File(inputFile);
Scanner sc = new Scanner(file);
while (sc.hasNextLine()) {
double amt = Double.parseDouble(sc.nextLine());
current += amt;
total++;
if (amt < min_contro) {
min_contro = amt;
}
if (amt > max_contro) {
max_contro = amt;
}
if (current > goal) {
break;
}
}
} catch (Exception e) {
System.out.println("Error processing the file!");
}
double average_contro = Math.round((double) current / total);
// Writing to the file
try {
FileWriter writer = new FileWriter(outputFile, true);
BufferedWriter out = new BufferedWriter(writer);
out.write("It took " + total + " contributions to reach the goal.\nThe maximum contribution"
+ " received was $" + max_contro + ".\nThe minimum contribution"
+ " received was $" + min_contro + "\nThe average contribution amount was $"
+ average_contro + ".\nA total of $" + current + " was collected.");
out.newLine();
out.close();
} catch (Exception e) {
System.out.println("Error processing the file!");
}
}
// Driver method to test the code
public static void main(String[] args) {
String inputFile = "input.in";
String outputFile = "output.out";
Main obj = new Main();
obj.fileOperation(inputFile, outputFile);
}
}
Note that the filename must be Main.java in GDB and the input file is input.in
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Below functions flatten the nested list of integers (List[List[int]]) into a single list and remove duplicates by leaving only the first occurrences. When the total number of elements is N, choose the one that correctly compares the time complexity with respect to N of each function.
f1 = f3 < f2
f1 = f2 < f3
f3 < f1 = f2
f3 < f1 < f2
f1 = f2 = f3
If the the total number of elements is N, the option that correctly compares the time complexity with respect to N of each function is f3 < f1 < f2.
What does it mean to flatten a list?Flattening lists is a term that connote the act of changing a multidimensional or any kind of nested list into what we call a one-dimensional list.
Note that For example, the act of changing this list of [[1,2], [3,4]] list to [1,2,3,4] is known as flattening.
So, If the the total number of elements is N, the option that correctly compares the time complexity with respect to N of each function is f3 < f1 < f2.
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What is meant by applied quantum computing
The study of quantum computing is concerned with the creation of computer-based technologies based on the ideas of quantum theory. The nature and behaviour of matter and energy at the quantum level are explained by quantum theory.
What is computer based technology?Technology is defined as computer-based technology that makes use of particular hardware, software, and microprocessing capabilities found on a computer or mobile device.
Computer based technology helps the people in reducing their time and strength by simplifying task. Some computer-based technology are-
Television. Internet. Cell phones. Computers. Circuitry. Artificial intelligence. Software. Audio and visual technology.Thus, creation of computer-based technologies based on the ideas of quantum theory.
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For given natural number n, e.g n=3, print string "1 sheep...2 sheep...3 sheep". Can someone help?
The code that is used to count sheep aloud in Javascript is given as:
var countSheep = function (num){
//start with a counter i = 1
// increment i
// stop until i == num
// "interpolation" to insert variables
// return joint array
let smallArr = "";
for (let x = 1; x <= num; x++)
{
smallArr += `${x} sheep...`
}
return smallArr;
};
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A customer uses an app to order pizza for delivery. Which component includes
aspects of the customer's interaction with an enterprise platform?
~frestoripongetosarangeou
A consumer orders pizza for delivery via an app. The element of the data component covers how a customer interacts with an enterprise platform
What is the data component?A data component is a tool that provides information on the activities taking place on a certain enterprise platform. This application also aids in keeping track of the available inventory.
In this approach, customers place their orders through a smartphone app.
Therefore, while ordering pizza the consumer uses the data component.
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Select 3 true statements about Python primitive types.
32-bit integer type (a.k.a. int32) can represent integer value from -2^31 (-2,147,483,648) to 2^31-1 (2,147,483,647)
The int type in Python3 cannot represent a number greater than 2^31-1.
A binary floating-point method is used to represent fractions in binary numbers.
The decimal number 0.1 cannot be expressed without error in binary floating-point format.
The float type in Python3 can represent decimal 0.1 without error.
The true statements about Python primitive types are:
32.bit integer type (a.k.a. int32) can represent integer value from -2 31 (-2.147,483,648) to 2"31-1 (2,147,483,647) A binary floating point method is used to represent fractions in binary numbers. The decimal number 0.1 cannot be expressed without error in binary floating-point format.What are the Python primitive types?
The Python is known to be made up of four primitive data types which are said to be:
Integer.Float.String.Boolean.Note therefore that The true statements about Python primitive types are:
32.bit integer type (a.k.a. int32) can represent integer value from -2 31 (-2.147,483,648) to 2"31-1 (2,147,483,647) A binary floating point method is used to represent fractions in binary numbers. The decimal number 0.1 cannot be expressed without error in binary floating-point format.Learn more about Python from
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In cell E5, enter a formula without using functions that multiples the actual hours (cell D5) by the billing rate (cell J2) to determine the actual dollar amount charged for general administrative services. Include an absolute reference to cell J2 in the formula.
In cell E5, enter a formula without using functions that multiples the actual hours (cell D5) by the billing rate (cell J2) to determine the actual dollar amount charged for general administrative services are L formulation are expressions used to orm computation.
What is excel?
Microsoft Excel allows customers to format, arrange and calculate statistics in a spreadsheet. By organizing statistics the use of software programs like Excel, statistics analysts and different customers could make facts less difficult to view as statistics is brought or changed. Excel includes a huge wide variety of bins referred to as cells which might be ordered in rows and columns.
From the question, we have:Cell D5 represents the real hoursCell J2 represents the billing feeThe made from the real hours and the billing fee is represented as follows: D5 J2Cell J2 is to be referenced the usage of absolute reference;So, we rewrite the above components as follows: D5 * $J$2Excel formulation start with same signSo, we rewrite the above components as follows: D5 * $J$2This method that, the components to go into in mobileular E5 is:=D5^ * $J$2.
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In Python write a program that reads a list of integers into a list as long as the integers are greater than zero, then outputs the values of the list.
Ex: If the input is:
10
5
3
21
2
-6
the output is:
[10, 5, 3, 21, 2]
Code hints: while user_input >0: #This is the number that is greater than 0 from the list that is entered.
print(user_numbers) #Prints out the numbers greater than zero that are inputted at the top part.
Answer:
ansList =input().split() #get input and split it by space
ansList = [int(i) for i in ansList if int(i)>0] #turn string to integer,and get all positive integers
print(ansList)
Explanation: I think this would work for you. I leace comments in the answer.
The program that reads a list of integers into a list as long as the integers are greater than zero is coded in the source code.
Source code:
user_numbers = []
user_input = int(input("Enter an integer (enter a non-positive integer to stop): "))
while user_input > 0:
user_numbers.append(user_input)
user_input = int(input("Enter an integer (enter a non-positive integer to stop): "))
print(user_numbers)
In this program, we initialize an empty list user_numbers to store the integers entered by the user. We then use a while loop to repeatedly prompt the user to enter an integer.
If the entered integer is greater than 0, it is appended to the user_numbers list. If the entered integer is non-positive (less than or equal to 0), the loop terminates.
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enter formula that uses the IF function to test whether the number of years of experience (cell M5) is greater than or equal to 4
Answer:
if n mod cell m5 >=4 then
and continue your programming
The formula that uses the IF function to test is:
IF(M5 >= 4, "Qualified", "Not Qualified")
In Excel, use the IF function to test whether the number of years of experience (cell M5) is greater than or equal to 4.
The formula would be:
=IF(M5 >= 4, "Qualified", "Not Qualified")
This formula will check if the value in cell M5 is greater than or equal to 4. If it is, the result will be "Qualified".
Otherwise, if it's less than 4, the result will be "Not Qualified".
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An information system will be developed to keep track of a utility company's assets, such as buildings, vehicles, and equipment. As new asset information becomes available, staff working in the field can update it using mobile devices. This system should integrate several existing asset databases that the company has. Based on the generic information system architecture shown in Figure 6.18 of the recommended key text, page 187, create a layered architecture for this asset management system.
The four standard layers of a layered architecture are:
presentation, business, persistence, database.What is a Layered Architecture?This refers to the architectural style that is used to show components with similar functions in horizontal layers that have specific roles.
Hence, we can see that no generic info system architecture was attached to the answer, so it would be impossible to create a layered architecture, so a general overview was given about layered architecture.
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Select the option no explanation needed
Based on the above, the option that i will chose is option A.
What is arithmetic coding?Arithmetic coding is known to be a form of a kind of entropy encoding that is known to often make use of lossless data compression.
Note that based on the image given, the option that i will chose is option A as it is the best option that fit into the expression,
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Which is a valid I
P address?
Answer:
2001:0db8:85a3:0000:0000:8a2e:0370:7334" and "2001:db8:85a3:0:0:8A2E:0370:7334" are valid IPv6 addresses, while "2001:0db8:85a3::8A2E:037j:7334
Explanation:
How is a qubit in quantum computing different from a regular bit in classical computing?
The qubit in quantum computing are different from a regular bit in classical computing is multiple qubits can show quantum entanglement.
What is the different about?An important factor between qubits and normal bits is that a lot of qubits can show quantum entanglement.
Note that Quantum entanglement is said to be a form of nonlocal property that pertains to two or more qubits that gives room for a set of qubits to show higher correlation than is it was in any systems.
Therefore, The qubit in quantum computing are different from a regular bit in classical computing is multiple qubits can show quantum entanglement.
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According to many, the digital world is being divided into ‘haves’ and ‘have nots’ – between those that have access and can use a computer and the Internet, and those that do not have such access. Some believe that this creates serious ethical implications and that there is a moral obligation to do something about the disparity; the ‘have nots’ may well feel discriminated against or feel ‘socially excluded’ and are missing out on many life opportunities. Do you feel that everyone everywhere should have access to computers and the Internet, regardless of location, need, competency, or ability to pay? If yes, who should provide the services and education and who should pick up the tab? If no, explain why not everyone needs access to the Internet.
Answer:
I believe that everyone should have access to computers and the Internet, regardless of location, need, competency, or ability to pay. I think that it is a moral obligation to provide access to the Internet to everyone. The ‘have nots’ may well feel discriminated against or feel ‘socially excluded’ and are missing out on many life opportunities.
I think that the government should provide the services and education and pick up the tab. I think that it is the government’s responsibility to make sure that everyone has access to the Internet.
Explanation:
Write the pseudocode for a program that merges the two files into one file containing a list of all students in the district, maintaining student ID number order
The Pseudocode for a program that performs the above function is given below.
What is a pseudocode?Pseudocode is a fictitious and informal language that aids programmers in the development of algorithms.
Pseudocode is a detailed (algorithmic) design tool that is "text-based."
Pseudocode sample:
start
Declarations
InputFile customerData
OutputFile mailingLabels
string studentid
string firstName
string LastName
string streetAddress
housekeeping( )
while bothDone = "N"
mainLoop( )
endwhile
finishUp( )
stop
housekeeping( )
open customerData "VernonHillsMailOrderBoxes.txt"
open mailingLabels "CutomerMailingLabels.txt"
Jefferson( )
Audubon( )
if jeffId = 9999 then
if audId = 9999 then
bothDone = "Y"
endif
endif
return
Jefferson( )
if eof then
jeffId = 9999
endif
return
Audubon( )
if eof then
audId = 9999
endif
return
mainLoop( )
if jeffId > audId then
Audubon( )
else
Jefferson( )
endif
if jeffId = 9999 then
if audId = 9999 then
bothDone = "Y"
endif
endif
return
finishUp( )
close files
return
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Pick the 3 correct Python functions that parse and output only the date and time part of each log in log.txt as follows.
parse1
parse2
parse3
parse4
parse5
Answer:
1, 4, 5
Explanation:
parse2:
. In this case it's passing "r" as an argument, which really does absolutely nothing, because whenever you call open("file.txt") it defaults to reading mode, so all you're doing is explicitly passing the "r". So let's look at the first line. Whenever you call str.split() without any arguments, by default it splits it by empty text, and filters any empty text. So str.split() is not the same as str.split(" ") although it has similar behavior. " ".split(" ") will output ['', '', '', '', '', ''], while " ".split() will output []. So in this case the line.split() will split the string '10.1.2.1 - car [01/Mar/2022:13:05:05 +0900] "GET /python HTTP/1.0" 200 2222' into the list ['10.1.2.1', '-', 'car', '[01/Mar/2022:13:05:05', '+0900]', '"GET', '/python', 'HTTP/1.0"', '200', '2222']. As you can see the the data is split into two pieces of text, AND they include the brackets in both strings. So when it gets the 3 index and strips it of the "[]" it will have the incomplete date
parse3:
In this instance the "r" does nothing as mentioned before the "r" is already defaulted whenever you call open("file.txt") so open("file.txt") is the same as open("file.txt", "r"). So in this case we won't be working left to right, we're going inside the brackets first, kind of like in math you don't don't work left to right in equation 3 + 3(2+3). You work in the brackets first (inside brackets you do left to right). So the first piece of code to run is the line.split("[" or "]"). I actually kind of misspoke here. Technically the "[" or "]" runs first because this doesn't do what you may think it does. The or will only return one value. this is not splitting the line by both "[" and "]". The, or will evaluate which is true from left to right, and if it is true, it returns that. Since strings are evaluated on their length to determine if they're true. the "[" will evaluate to true, because any string that is not empty is true, if a string is empty it's false. So the "[" will evaluate to true this the "[" or "]" will evaluate to "[". So after that the code will run line.split("[") which makes the list: ['10.1.2.1 - car ', '01/Mar/2022:13:05:05 +0900] "GET /python HTTP/1.0" 200 2222']. Now the [3:5] will splice the list so that it returns a list with the elements at index 3 (including 3) to 5 (excluding 5). This returns the list: [], because the previous list only has 2 elements. There are no elements at index 3 to 5 (excluding 5). So when you join the list by " ", you'll get an empty string
parse4:
So I'm actually a bit confused here, I thought the "r+" would open the file in read-writing mode, but maybe this is a different version of python I have no idea, so I'm going to assume it is reading/writing mode, which just means you can read and write to the file. Anyways when you split the line by doing line.split(), as mentioned before it will split by empty spaces and filter any empty spaces. This line will return: ['10.1.2.1', '-', 'car', '[01/Mar/2022:13:05:05', '+0900]', '"GET', '/python', 'HTTP/1.0"', '200', '2222']. and then you splice the list from indexes 3 to 5 (excluding 5). This will return the list: ['[01/Mar/2022:13:05:05', '+0900]'] which has the two pieces of information you need for the date. Now it joins them by a space which will output: '[01/Mar/2022:13:05:05 +0900]'. Now when you strip the "[]" you get the string: '01/Mar/2022:13:05:05 +0900' which is the correct output!
parse 5:
So in this example it's using re.split. And the re.split is splitting by "[" or "]" which is what re.split can be used for, to split by multiple strings, which may be confused by string.split("[" or "]") which is not the same thing as explained above what the latter does. Also the reason there is a backslash in front of the [ and ] is to escape it, because normally those two characters would be used to define a set, but by using a \ in front of it, you're essentially telling regex to interpret it literally. So in splitting the string by "[" and "]" you'll get the list: ['10.1.2.1 - car ', '01/Mar/2022:13:05:05 +0900', ' "GET /python HTTP/1.0" 200 2222'] which has 3 elements, since it was split by the [ and the ]. The second element has the date, so all you need to do is index the list using the index 1, which is exactly what the code does
Write a program whose inputs are two integers, and whose output is the smallest of the two values.
Ex: If the input is:
7
15
the output is:
7
Preferred in Python
Method 1 :
Using If else statements: If the condition checks whether num1 is smaller than num2 if so it will print 'Smallest of these two integers is num1'.
else it will print 'Smallest of these two integers is num2'
Method 2:
Using the 'min' method: using the method min(num1,num2), the program finds the smallest value and prints it directly to the user.
Python Program using method 1
#PYTHON PROGRAM TO FIND SMALLEST INTEGER VALUE FROM TWO INPUTS FROM USER - Method 1
#Accepts inputs from user
num1 = int (input ("Enter your first number:")) #Gets the first integer input from user and stores in num1
num2 = int (input ("Enter your second number: ")) #Gets the second integer input from user and stores in num2
#Finding output by if else
#Checks num1 smaller than num2
if (num1 < num2):
#assign num1 to small
small = num1
else:
#assign num2 to small
small = num2
print ("Smallest of these two integers is", small)
Python Program using method 2
#PYTHON PROGRAM TO FIND SMALLEST INTEGER VALUE FROM TWO INPUTS FROM USER - Method 2
#Accepts inputs from user
num1 = int (input ("Enter your first number:")) #Gets the first integer input from user and stores in num1
num2 = int (input ("Enter your second number: ")) #Gets the second integer input from user and stores in num2
#Finding output using min method
print("\n Smallest of these two integers is",min(num1,num2)) #Prints output to user
Answer:num1 = int(input())
num2 = int(input())
num3 = int(input())
lowest = min(num1, num2, num3)
if num1 < num2 and num1 < num3:
lowest = num1
elif num2 < num1 and num2 < num3:
lowest = num2
elif num3 < num1 and num3 < num2:
lowest = num3
print(lowest)
Explanation: