complete the following function, strcat list(l), which generalizes the previous function: given a list of strings, l[:], returns the concatenation of the strings in reverse order. for example:
Answers
Using the knowledge in computational language in python it is possible to write a code that strcat list(l), which generalizes the previous function: given a list of strings, l[:], returns the concatenation of the strings in reverse order.
Writting the code:def strcat_ba(a, b):
assert type(a) is str
assert type(b) is str
return(b + a) #Megan's Code
def random_letter():
from random import choice
return choice('abcdefghijklmnopqrstuvwxyz')
def random_string(n, fun=random_letter):
return ''.join([str(fun()) for _ in range(n)])
a = random_string(5)
b = random_string(3)
c = strcat_ba(a, b)
print('strcat_ba("{}", "{}") == "{}"'.format(a, b, c))
assert len(c) == len(a) + len(b)
assert c[:len(b)] == b
assert c[-len(a):] == a
print("\n(Passed!)")
def strcat_list(L):
assert type(L) is list
print ("REMOVE THIS BUT THIS IS ALEX CODE ")
print ("arg to strcat_list:",L)
"".join(L)
print ("what you tried to return:",L[::-1])
print ("what you should return:","".join(L[::-1]))
print ("REMOVE THIS BUT THIS IS ALEX CODE ")
return "".join(L[::-1])
n = 3
nL = 6
L = [random_string(n) for _ in range(nL)]
Lc = strcat_list(L)
print ("REMOVE THIS BUT THIS IS ALEX CODE ")
for i,x in zip(range(nL), L):
print (i,x)
print ("cond 1:",Lc[i*n:(i+1)*n])
print ("cond 2:",L[nL-i-1])
print ("REMOVE THIS BUT THIS IS ALEX CODE ")
print('L == {}'.format(L))
print('strcat_list(L) == \'{}\''.format(Lc))
assert all([Lc[i*n:(i+1)*n] == L[nL-i-1] for i, x in zip(range(nL), L)])
print("\n(Passed!)")
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Related Questions
in what IT pathway would you most likely need to be familiar with the system development life cycle?
A) Information Support and Service
B) Network Systems
C) Programming and Software Development
D) Interactive Media
Answers
Answer:
B) Network Systems
Explanation:
Help me please I dot know how to do This i don’t understand
Answers
Answer:
define then prepare then try then reflect these are the ways to solve other problems I don't think it's a question
what are the disadvantages of using a workstation as a print server
Answers
Answer:
Pros and cons of workstation
There are some pros and cons of workstation that are explained below:-
Advantages of workstation
High performance:
This type of computers can give more performance than a normal computer. It is best suited for rendering complex graphics, financial analysis, and digital content creation.
Single user:
A single user can use this type of computer at a time and hence the speed of the system can be improved and there is no other user that can interfere with the performance.
Smart investment:
Investing in such computers is good because it increases our productivity and can do more work than the normal user can do. For example, if you want to edit any animation and then render it then it can be done rapidly.
Used in the entertainment and media sector:
These computers can perform best in entertainment sector where a lot of audio and video processing is needed. Also, such computers work great in the media sector where live broadcasting is done.
Reliability:
You can easily diagnose any problem in the workstation. The IT staff can repair your system if you get a blue screen, or workstation can become unresponsive. IT staff can attach keyboard, mouse, and video and identify the problem in the workstation even the workstation is off.
Large memory:
A workstation has a larger memory than a desktop PC. It has about twice the memory as compared to laptops, tablets, smartphone or other devices. By using larger memory it can do more work in a shorter time. There are nearly no errors in memory while performing any task.
Multiple processors support:
A workstation has multiple processors attached to it. By using multiprocessors you can run multiple applications at a time without any issue. Your system will not slow down by opening multiple applications. A workstation is used by professionals like engineers, scientists, analysts and designers.
Large hard drives and SSD:
A workstation has hard drives which can store terabytes of data so any type of job of any size can be stored in the hard drives. Additionally, SSD (Solid State Drives) are also attached in the workstation to speed up the overall performance of the system.
Easy to use:
The workstation has a large keyboard than a laptop and it is easy to use if you stay in one room.
Disadvantages of workstation
Portability:
It is difficult to move workstation from one place to another. On the other hand, if you use a laptop then you can move it easily from one place to another. For moving workstation, you have to plug out every time you plan to move.
Expensive:
Workstation is expensive than low capacity computers. The higher cost is because of higher RAM, hard drives and multiprocessor support.
High power usage:
The workstation uses more electricity than other devices like tablets, smartphone, laptops and desktop computers.
Examples of workstation
Some examples of the workstation are:-
Apple Power Mac G5
Hp Z series
Dell Precision
Sun Microsystems SparcStation
Silicon Graphics IRIX Machines
Apple Mac Pro
Apple Macbook Pro
Explanation:
All-in-one computers are easier to service and upgrade but occupy more space than desktop computers. True or false?.
Answers
All-in-one computers are easier to service and upgrade but occupy more space than desktop computers: false.
What is a desktop computer?A desktop computer can be defined as an electronic device that is designed and developed to receive data in its raw form as an input and processes these data into an output (information) that could be used by an end user.
Also, desktop computer plugs into a standard wall outlet (socket), converts alternating current (AC) to direct current (DC), and provides the electrical power that is required to drive all the system unit components.
Generally, desktop computers are fitted with a power supply unit (PSU) that is located within the system unit, external monitor, keyboard, which makes them to occupy more space than all-in-one computers.
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Given a string variable s that has already been declared, write some code that repeatedly reads a value from console input into s until at last a y or y or n or n has been entered.
Answers
Answer:
s = "";
while (!(s=="Y" || s=="y" || s=="N" || s=="n"))
{
cin >> s;
}
The code for the String variable is described below.
To achieve the desired functionality of repeatedly reading values from console input into the variable s until either 'y' or 'n' has been entered, you can use a loop.
Here's an example of how you can implement this in Python:
s = ""
while s not in ('y', 'n'):
s = input("Enter a value (y/n): ")
# At this point, the user has entered 'y' or 'n'
print("You entered:", s)
In this code, the 'while' loop will continue executing as long as the value of s is not 'y' or 'n'.
The 'input()' function prompts the user to enter a value, and the input is stored in the variable s. The loop will keep repeating until the condition s not in ('y', 'n') is false.
Once the loop exits, it means the user has entered either 'y' or 'n', and you can proceed with further processing or printing the value if needed. In the example above, it simply prints the value of s using print().
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write code that combines the following variables so that the sentence "you are doing a great job, keep it up!" is assigned to the variable message. do not edit the values assigned to by, az, io, or qy.
Answers
A code which combines the given variables so that the sentence "you are doing a great job, keep it up!" is assigned to the variable message is as follows:
by = "You are"az = "doing a great "io = "job"qy = "keep it up!"message = by+" "+az+io+", "+qyWhat is a variable?A variable can be defined as a specific name which refers to a location in computer memory and it is typically used for storing a value such as an integer.
This ultimately implies that, a variable refers to a named location that is used to store data in the memory of a computer. Also, it is helpful to think of variables as a container which holds data that can be changed in the future.
In Computer technology, there are two (2) main methods for assigning or passing variables to functions and these include the following:
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which command will reset a next generation firewall to its factory default settings if you know the admin account password?
Answers
If you know the admin account password, a command which will reset a next generation firewall to its factory default settings is: c. request system private-data-reset.
What is a firewall?A firewall can be defined as a network security protocol that monitors and controls inbound and outbound traffic based on set aside security rules.
This ultimately implies that, a firewall is used to control access to a computer or network, as it creates a barrier between a computer or a network and the internet in order to protect against unauthorized access.
In Computer technology, "request system private-data-reset" is a command which can be used to reset a next generation firewall to its factory default settings provided that the end user knows the admin account password.
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Complete Question:
Which command will reset a next generation firewall to its factory default settings if you know the admin account password?
Select one:
a. reset system settings
b. reload
c. request system private-data-reset
d. reset startup-config
What are the two most common request methods that a security professional will encounter?
Answers
While GET and POST are by far the most common methods that are used to access information provided by a web server, there are a variety of other methods that may also be supported, and can sometimes be exploited by attackers.
overcomes the efficiency of triangle routing, at the cost of complexity. uses a correspondent agent.
Answers
Direct routing overcomes the efficiency of triangle routing, at the cost of complexity. uses a correspondent agent.
There are many different routing algorithms that can be used to route data packets across a network. One of the most commonly used algorithms is triangle routing, which is very efficient at routing data packets between three nodes. However, triangle routing can become very complex when there are more than three nodes in the network.
Direct routing uses a correspondent agent to route data packets between two nodes, without going through the intermediate node. This can make direct routing much more complex than triangle routing, but it also eliminates the need for the intermediate node to keep track of the data packets.
Direct routing is often used in networks where there are a large number of nodes, or where data packets need to be routed between nodes that are not all part of the same network. However, it is important to note that direct routing can also be used in smaller networks, where it can be more efficient than triangle routing.
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Oliver is shopping at his local grocery store. Instead of joining a checkout line manned by a human, he joins a checkout line where he has to
scan the food, but the rest is done by a computer. What Is Oliver experiencing while the computer does the checkout for him instead of a
human cashier? A:social media B: open education resources C:outsourcing D:automation
Answers
Not A, B or C :)
which category of telecommunications system is in a central location, takes all emergency calls, and then routes calls to appropriate dispatchers?
Answers
The category of telecommunications system that is in a central location, takes all emergency calls, and then routes calls to appropriate dispatchers is Public Safety Answering Point (PSAP).
What is a PSAP meaning?PSAPs (Public Safety Answering Points) is known to be a body that is known to be responsible for the role of accepting 911 calls as well as processing those calls based on a specific operating policy.
Therefore, based on the above, The category of telecommunications system that is in a central location, takes all emergency calls, and then routes calls to appropriate dispatchers is Public Safety Answering Point (PSAP).
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after teaching a group of students about measuring systems and drug calculations, the instructor determines that the teaching was successful when the students identify which system as most widely used?
Answers
The instructor determines that teaching is successful when students can identify which metric system is the most widely used system.
The metric system is a measurement system for something that is done in a study and calculation. An example of a metric system is the meter used to measure length, grams to measure weight, milliliters to measure volume.In this case, we can take an example from the application of the metric system in the world of health. A nurse uses the metric system to calculate doses and uses the liter as the base unit for measuring fluids.Learn more about Metric System here https://brainly.com/question/1764307
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typically provide students with a general understanding of information technology, including computer platform technologies, data management systems, and basic programming. A Master Degree programs B Cisco degree programs C Associate degree programs D CertaPort degree programs
Answers
Answer:
the correct answer is ''associate degree programs"
Explanation:
because i took the test and got this answer right. hope this helps :)
Mary needs to rename her report. Txt file to final_report. Txt. Which command will allow her to do this?.
Answers
Answer:
ren report.txt final_report.txt
Explanation:
If mary wants to rename her report then she has to use this command, ren report.txt final_report.txt.
What is Report?In comparison to essays, reports are more rigidly formatted and intended to be read quickly and accurately, albeit they are not always read from beginning to end.
A report is essentially a brief, direct document that is written with a specific target and purpose in mind. In general, it describes and analyzes a situation or problem and frequently offers suggestions for the next action. Because it is a factual paper, it must be concise and organized.
Take advantage of the tables of contents (ToC), page numbers, and styled headings capabilities that modern word processors offer since they update automatically as you move, add, or delete sections from your report.
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In the Phoenix Wright/Ace Attorney games, you follow the story of a lawyer in a land where the accused are guilty until proven innocent. You play by selecting from lists of responses to crazy fictional courtroom scenes, including playing the defense attorney for a killer whale accused of murder. What is the best description for this game series?
A.
virtual reality game
B.
simulation game
C.
platformer game
D.
visual novel
Answers
A visual novel is an interactive story told through talking and the user’s choosing. In this problem, a visual novel is being described in the context of a player in the role of a lawyer.
Answer:
Explanation:
D. visual novel
In linux, in the /dev directory, devices that start with sd can be associated with what type of device?
Answers
Answer:
Hard drives.
USB drives.
Memory sticks.
by marking up a navigation bar using the element(s), you can add semantic information that helps user agents more accurately render it
Answers
ul, li
By marking up a navigation bar using the ul and li element(s), you can add semantic information that helps user agents more accurately render it.
For example, a user agent could use the ul element to identify a navigation bar as a list of links, and the li element to identify each link in the list.
This would help the user agent render the navigation bar more accurately, and would also make it easier for users to navigate the page.
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how many ip addresses does a class c network have? 1 point 1 address 65,536 addresses 256 addresses 16,777,216 addresses
Answers
Local hosts belonging to class C have 256 possible addresses.
There are three classes of TCP or IP networks, and each class of TCP or IP networks uses the 32-bit IP address space differently. The classes are as follows:
Class A
The first eight bits of the IP address as part of the network are used for the class A network number.
Class B
16 bits for the network number and the host number is used for the class B network number.
Class C
24 bits for the network number and 8 bits for the host number are used for class C network numbers.
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How does the web effect your daily life?
Answers
Answer:
The web affects our daily life because we rely a lot on the internet to do a lot for us. An example would be, How to make a Blueberry Cake. Or, "How do I get to the coffee shop." The Internet helps us a lot in our daily life. The Internet was made to be Useful and Entertaining. And without the Internet, People would still be lost traveling to another state or trying to make a cake.
Hello guys where's bios chip in this motherboard
Answers
Answer: This. is an old Asus Board and the chip is missing
Explanation: The BIOS chip goes into the Processor holder. the one with the curved metal arm to help release it (goes into the cage first you use glue made for ) installing the chip, then you place the processor on top of that big part where it resembles a slice of bread. You lock down the four legs and that is the brain of the MB.
To update the BIOS,in the machine outside of the operating system. ON WIndows it is the command center on Mac it is different.
The CMOS Battery is next to the word ASUS .
The BIOS is code and software that you upload from the manufacturer's site like ASUS. and in the command environment, you update the bios.
The CHIP is delicate and it ONLY GOES on ONE WAY! BE Verry very careful installing the chip and processor better to have a pro (like me ) do it ...
Motherboards are very delicate and expensive! All parts go one way and one way only. Be glad you don't have to Sauter anything.
why is it important for software manufacturers to update their programs to work with the latest operating systems? compuscholar
Answers
It is important for software manufacturers to update their programs to work with the latest operating systems because: D. None of these are true.
What is an operating system?An operating system (OS) can be defined as a system software that's usually pre-installed on a computing device by the manufacturers, so as to manage random access memory (RAM), software programs, computer hardware and all user processes.
Additionally, an operating system serves as the intermediary (bridge) between software application and hardware, especially by making sure the resources required to function are allocated.
In conclusion, we can logically deduce that it is not compulsory for software manufacturers to update their programs to work with the latest operating systems.
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Complete Question:
Why is it important for software manufacturers to update their programs to work with the latest operating systems?
answer choices
If they don't, the program may not work on newer computers and could lose customers
Because it is cheaper to run programs on newer computers
Because everyone automatically switches to the latest operating systems as soon as they are released
None of these are true
you are given an array on integers number and a positive intgere k, count the number of contiguous subarrays having k duplicate pairs
Answers
Using the knowledge in computational language in python it is possible to write a code that array on integers number and a positive intgere k, count the number of contiguous subarrays having k duplicate pairs
Writting the code:def duplicatesOnSegment(a):
ans = 0
for i in range(len(a)):
for j in range(i+1, len(a), 1):
x = a[i:j+1]
flag = 0
for k in range(len(x)):
if x.count(x[k]) < 2:
flag = 1
if flag == 0:
ans += 1
print(ans)
arr = [0, 0, 0]
duplicatesOnSegment(arr)
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you arrive at a scene where a computer must be seized as evidence. the computer is powered off and has an external usb hard drive plugged in. what should you do first? turn on the computer and take screenshots. unplug the external usb hard drive. place the computer in a faraday bag. thoroughly document the state of the equipment.
Answers
The first thing to do is to thoroughly document the state of the equipment before it is hidden which is essential to comply with chain of custody procedures. Failure to do so will render the evidence collected unacceptable.
Security+ can be defined as an entry-level cybersecurity credential offered by the non-profit trade association CompTIA. This is usually the first certification in information security that an IT professional earns. By having Security+, you may get more job opportunities, as you are judged as a more competitive candidate.
The CompTIA Security+ exam (SY0-601) is an exam that tests the applicant that he or she has the basic knowledge to perform tasks in IT security and work in cybersecurity. The CompTIA Security+ exam can be defined as a vendor-neutral exam that tests applicants' knowledge of IT security materials and their ability to perform core security functions.
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when writing a disaster plan for implementation during a mass casualty incident (mci), which percentage of victims often require admission to the hospital for further treatment?
Answers
In writing a disaster plan for implementation during a mass casualty incident (mci), 30 percent of victims often require admission to the hospital for further treatment.
What is the meaning of disaster plan?The disaster plan is known to be a constantly form of maintained document that is known to be composed of the ways, procedures as well as the information required to hinder , mitigate, prepare for, as well as respond to, and get over from any emergencies.
Therefore, In writing a disaster plan for implementation during a mass casualty incident (mci), 30 percent of victims often require admission to the hospital for further treatment.
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internet-based development treats the traditional systems development environment as the platform, rather than just a communication channel
Answers
For internet-based developmnent many applications require substantial desktop computing power and resources, so the correct answer is option (c).
As a result, we can observe that a standard systems development environment involves the usage of a significant portion of the desktop's processing power and resources, both of which are being utilised by many apps simultaneously.
The conventional systems development process is available to any organisation that needs to create a system. To achieve some outcomes and produce the needed system, system designers and developers must follow and finish a series of steps in these techniques.
The planning, system analysis, system design, development, implementation, integration, testing, and operations and maintenance phases of the systems development life cycle are included.
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The complete question is ''Which of the following is true of a traditional systems development environment? a. Systems are developed and delivered in an Internet-based framework such as .NET or WebSphere. b. Systems are easily scalable and can run on multiple hardware environments. c. Many applications require substantial desktop computing power and resources. d. Internet-based development treats the traditional systems development environment as the platform, rather than just a communication channel''.
should variables that contain numbers always be declared as integer or floating-point data types? why or why not? name potential examples.
Answers
No, it is not necessary that variables that contain numbers should always be declared as integer or floating-point data types.
It is not necessary that variables that contain numbers should be declared as integer and floating point data types. Because number can be declared with different data types. As we know that data type is a vital aspect in programming. It describes the type of a value that is contained in a variable. It is the data type based on which memory is allocated to a number or any type of variables.
Numbers can be whole decimal/fractional, signed, unsigned, small, and long. Simply, they exist in a variety of values. According to their values range, the amount of memory is reserved.
Different programming languages offer different data types to store numbers, depending on their types and size. Let’s consider some examples of data types used in programming languages in order to declare variables holding numbers.
In Python int, float, and complex are the data types used to declare number type variables.SQL uses INTEGER, SMALLINT , BIGINT , NUMERIC() , and DECIMAL() data types for numbers. To deal with number type variables, Java has six predefined data types, such as int, long, short, byte, float, and double.JavaScript uses a single data type called 'number' to declare numbers.In C++, two fundamental data types, int and float, are used to represent numeric variables. But C++ is not only limited to these two data types. The data type char can also store numbers. Other data types for declaring numbers as variables are derived from int, float and char, such as short int, long int, signed int, unsigned int, double, long double, signed char, unsigned char etc. etc.So in concluding remarks, declaring a number type variable is not only limited to using integers and floating-points data types. Rather it entirely depends on the respective programming language, and size and type of the number to be stored in the variable.
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pls help. this is for my keyboarding and applications class.
Answers
Answer:
Answer is listed below
Explanation:
icons - pictures that represents applications, files, or folders
Quick Launch - place where frequently used programs can be opened
Start menu - list of items that can be opened by clicking on their names
system tray - shows the programs that are always running
taskbar - displays open applications or files
that, given a string s representing the total excess billables and an array b consisting of k strings representing the undiscounted bills for each customer. the return value should be an array of strings r (length m) in the same order as b representing the amount of the discount to each customer.
Answers
Using the knowledge in computational language in python it is possible to write a code that a string s representing the total excess billables and an array b consisting of k strings.
Writting the code:def solution(A):
answer = 0
current_sum = 0
#Currently there is one empty subarray with sum 0
prefixSumCount = {0:1}
for list_element in A:
current_sum = current_sum + list_element
if current_sum in prefixSumCount:
answer = answer + prefixSumCount[current_sum]
if current_sum not in prefixSumCount:
prefixSumCount[current_sum] = 1
else:
prefixSumCount[current_sum] = prefixSumCount[current_sum] + 1
if answer > 1000000000:
return -1
else:
return answer
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the correct way to enter a cell address (for cell d3) in excel when you want the row to always stay the same, but you want the column to change when you copy to the right or left is? you don't need to include the =.
Answers
The correct way to enter a cell address (for cell D3) in Microsoft Excel when you want the row to always stay the same, but you want the column to change when you copy to the right or left is: D$3.
What is Microsoft Excel?Microsoft Excel can be defined as a software application that is designed and developed by Microsoft Inc., for analyzing and displaying spreadsheet documents by using rows and columns in a tabulated format.
What is a spreadsheet?In Computer technology, a spreadsheet can be defined as a document which comprises cells that are arranged in a tabulated format with rows and columns. Also, a spreadsheet is typically used in various field to do the following on a data:
SortCalculateFormatArrangeIn this scenario, you should use the formula D$3 to enter a cell address (for cell D3) in Microsoft Excel if you want the row to always stay the same while the column changes when you copy to the right or left.
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write a function fullwords(s) that returns a string no longer than 20 characters. if the string s is longer than 20 characters, just truncate at the space closest to the 20th position (so no word is truncated) and return it. if the string s is shorter 20 characters, just return it unchanged.
Answers
Assuming you mean a function that truncates a string to 20 characters:
function fullwords(s){
if (s.length > 20) {
//find the 20th character
var char20 = s.charAt(19);
//if it's a space, return the string up to that point
if (char20 == " ") {
return s.substring(0, 20);
}
//if it's not a space, find the closest space
else {
var spaceBefore = s.lastIndexOf(" ", 18);
return s.substring(0, spaceBefore);
}
}
//if the string is shorter than 20 characters, return it unchanged
else {
return s;
}
}
To use fullwords(), simply pass in a string as the only argument. The function will then return a string that is no longer than 20 characters. If the string you passed in was shorter than 20 characters, it will be returned unchanged.
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