Answer:
DVD-R is a good choice for long-term archiving because the stored data do not degrade over time. This is due to its write-once, read-many nature, which makes it less likely to degrade compared to magnetic tape, HDDs or solid-state drives (SSDs).
Explanation:
one example of FLAT artwork is tagged image file format which is a common computer what file
One example of FLAT artwork is the Tagged Image File Format (TIFF). TIFF is a common computer file format used for storing raster images.
What is the image file format about?It is a flexible format that can support a wide range of color depths and image compression methods. It is often used for high-quality images, such as those used in printing, and is supported by a wide range of image-editing software.
Therefore, based on the context of the above, TIFF files are FLAT artwork as they are a single, static image without any animations or interactivity.
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Demonstrate the Max() functio with example in ms excel
Make sure there is at least one blank cell underneath the list of integers you've chosen = MAX since this will insert a ready-to-use formula in a cell below the chosen range (C2:E7).
What does the term Max mean?The highest-valued item, or the item with the highest value within an iterable, is returned by the max() method. If the values are strings, then the comparison is done alphabetically.
Give an example of the Max () function's purpose.Any type of numeric data can have its maximum value returned by the MAX function. The slowest time in a race, the most recent date, the highest percentage, the highest temperature, or the biggest sales amount are just a few examples of the results that MAX can return. Multiple arguments are taken by the MAX function.
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What did the police threaten to do?
Answer:
fire?
Explanation:
You are given a design board with four input pins a 4-bit INDATA,
1-bit Load,Enable, and Clock; and one output, a 4-bit OUTDATA.
Build a sequential circuit that contains a register (Don’t forget to
trigger that register by the FALLING edge of the clock, Logisim’s default
is the opposite!).
The register is updated every clock cycle in which Enable is up. If
Load is down, the register is incremented, otherwise it is loaded with the
data asserted on the INDATA pin.
The register data output should be connected with the output pin
OUTDATA.
The steps to Build a sequential circuit that contains a register is given below
The first step is to connect the 4-bit INDATA input to the data input of a 4-bit register.Next, we need to connect the Load and Enable inputs to a multiplexer. The multiplexer will be used to select between the INDATA input and the output of the register.The multiplexer output should be connected to the input of the register.We also need to create an AND gate that will be used to trigger the register on the falling edge of the clock. The AND gate should have the Clock input as well as the Enable input as its inputs.The output of the AND gate should be connected to the clock input of the register.The output of the register should be connected to the OUTDATA output.Create a NOT gate and connect the Load input to it, and connect the output of the NOT gate to one of the multiplexer input.Connect the output of the register to the second input of the multiplexer.What is the design board about?To build a sequential circuit that contains a register, we can use a combination of logic gates, flip-flops, and multiplexers.
In the above way, the register will be updated every clock cycle in which the Enable input is high. If the Load input is low, the multiplexer will select the output of the register and it will be incremented.
Otherwise, the multiplexer will select the INDATA input and the register will be loaded with the data asserted on the INDATA pin. The output of the register will be connected to the OUTDATA output, providing the register data.
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Next, you begin to clean your data. When you check out the column headings in your data frame you notice that the first column is named Company...Maker.if.known. (Note: The period after known is part of the variable name.) For the sake of clarity and consistency, you decide to rename this column Company (without a period at the end).
Assume the first part of your code chunk is:
flavors_df %>%
What code chunk do you add to change the column name?
Answer:
You can use the rename function to change the column name. Here is an example code chunk:
flavors_df %>%
rename(Company = Company...Maker.if.known.)
This will rename the Company...Maker.if.known. column to Company. Note that the old column name is surrounded by backticks () because it contains a period, which is a special character in R. The new column name, Company`, does not need to be surrounded by backticks because it does not contain any special characters.
Explanation:
Code to be written in Python:
Correct answer will get the brainliest!
Uyen decides to write a Python program to count towards the next birthday.
In order to do so, she plans to write a function count_days(start_date, end_date) which takes in the start date and end date in the string format, "dd/mm/yyyy", and returns the number of days between the start date and end date. The start date is included while the end date is not included in the count. Note that leading zeros in start_date and end_date are skipped if there are any (For example, the date 1st January 2017 will be in the format 1/1/2017).
Currently, Uyen has only completed a skeleton of count_days, and a few helper functions, which are provided below.
Your Tasks:
(a) Help Uyen complete the four functions marked with 'TODO'. They are get_day_month_year, less_than_equal, next_date and count_days.
(b) Uyen was quite careless, she didn't check for input data validity. You will also need to help her with this. We only proceed to count days if the dates are valid, and the start date is before or same as the end date.
Assume a valid date is between 1/1/1970 and 31/12/9999. The leap year and valid date check are already provided.
If one of the dates is not valid, throw an exception with a message that has the value: "Not a valid date: " + date, where date is the invalid date.
If the start date is after the end date, throw an exception with a message value: "Start date must be less than or equal end date."
Note: is_leap_year(year) and is_valid(d, m, y) are provided, you can make use of them.
Incomplete code:
def is_leap_year(year):
# DONE: do not need to modify
if year % 4 == 0 and year % 100 != 0:
return True
if year % 400 == 0:
return True
return False
def is_valid(d, m, y):
# DONE: do not need to modify
# d, m, y represents day, month, and year in integer.
if y < 1970 or y > 9999:
return False
if m < 1 or m > 12:
return False
if d < 1 or d > 31:
return False
if m == 4 or m == 6 or m == 9 or m == 11:
if d > 30:
return False
if is_leap_year(y):
if m == 2 and d > 29:
return False
else:
if m == 2 and d > 28:
return False
return True
def get_day_month_year(date):
# TODO: split the date and return a tuple of integer (day, month, year)
d = 1
m = 1
y = 1970
return (d, m, y)
def less_than_equal(start_day, start_mon, start_year, \
end_day, end_mon, end_year):
# TODO: return true if start date is before or same as end date
return False
def next_date(d, m, y):
# TODO: get the next date from the current date (d, m, y)
# return a tuple of integer (day, month, year).
return (d, m, y)
def count_days(start_date, end_date):
# date is represented as a string in format dd/mm/yyyy
start_day, start_mon, start_year = get_day_month_year(start_date)
end_day, end_mon, end_year = get_day_month_year(end_date)
# TODO: check for data validity here #
# if start date is not valid...
# if end date is not valid...
# if start date > end date...
# lazy - let the computer count from start date to end date
count = 0
while less_than_equal(start_day, start_mon, start_year, end_day, end_mon, end_year):
count = count + 1
start_day, start_mon, start_year = next_date(start_day, start_mon, start_year)
# exclude end date
return count - 1
Test Cases:
test_count_days('1/1/1970', '2/1/1970') 1
test_count_days('1/1/1970', '31/12/1969') Not a valid date: 31/12/1969
test_count_days('1/1/1999', '29/2/1999') Not a valid date: 29/2/1999
test_count_days('14/2/1995', '19/3/2014') 6973
test_count_days('19/3/2014', '19/4/2013') Start date must be less than or equal end date.
get_day_month_year('19/3/2014') (19, 3, 2014)
get_day_month_year('1/1/1999') (1, 1, 1999)
get_day_month_year('12/12/2009') (12, 12, 2009)
less_than_equal(19, 3, 2014, 19, 3, 2014) True
less_than_equal(18, 3, 2014, 19, 3, 2014) True
less_than_equal(20, 3, 2014, 19, 3, 2014) False
less_than_equal(19, 3, 2015, 19, 3, 2014) False
less_than_equal(19, 6, 2014, 19, 3, 2014) False
less_than_equal(18, 12, 2014, 19, 11, 2014) False
less_than_equal(18, 12, 2014, 19, 11, 2015) True
less_than_equal(31, 3, 2018, 29, 4, 2018) True
next_date(1, 1, 2013) (2, 1, 2013)
next_date(28, 2, 2014) (1, 3, 2014)
next_date(28, 2, 2012) (29, 2, 2012)
next_date(29, 2, 2012) (1, 3, 2012)
next_date(30, 4, 2014) (1, 5, 2014)
next_date(31, 5, 2014) (1, 6, 2014)
next_date(31, 12, 2014) (1, 1, 2015)
next_date(30, 5, 2014) (31, 5, 2014)
To complete the function get_day_month_year(date), we can split the date string using the / character as a delimiter and return a tuple of integers:
def get_day_month_year(date):
day, month, year = date.split('/')
return (int(day), int(month), int(year))
To complete the function less_than_equal(start_day, start_mon, start_year, end_day, end_mon, end_year), we can compare the year, month, and day of the start date to the year, month, and day of the end date and return True if the start date is less than or equal to the end date:
def less_than_equal(start_day, start_mon, start_year, end_day, end_mon, end_year):
if start_year < end_year:
return True
elif start_year == end_year:
if start_mon < end_mon:
return True
elif start_mon == end_mon:
if start_day <= end_day:
return True
return False
To complete the function next_date(d, m, y), we can first increment the day by 1 and check if the resulting date is valid. If it is not valid, we can set the day to 1 and increment the month by 1. We can continue this process until we reach a valid date:
def next_date(d, m, y):
d += 1
while not is_valid(d, m, y):
d = 1
m += 1
if m > 12:
m = 1
y += 1
return (d, m, y)
Finally, to complete the function count_days(start_date, end_date), we can add code to check the validity of the start and end dates, and throw an exception if either of them is not valid or if the start date is after the end date. We can do this by calling the is_valid function and the less_than_equal function:
def count_days(start_date, end_date):
start_day, start_mon, start_year = get_day_month_year(start_date)
end_day, end_mon, end_year = get_day_month_year(end_date)
if not is_valid(start_day, start_mon, start_year):
raise Exception("Not a valid date: " + start_date)
if not is_valid(end_day, end_mon, end_year):
raise Exception("Not a valid date: " + end_date)
if not less_than_equal(start_day, start_mon, start_year, end_day, end_mon, end_year):
raise Exception("Start date must be less than or equal end date.")
count = 0
while less_than_equal(start_day, start_mon, start_year, end_day, end_mon, end_year):
count = count + 1
start_day, start_mon, start_year = next_date(start_
Hope This Helps You!
Which of the following devices can store large amounts of electricity, even when unplugged?
LCD monitor
DVD optical drive
CRT monitor
Hard disk drive
Even when unplugged, a CRT (Cathode Ray Tube) monitor can store a lot of electricity. The capacitors within CRT monitors can store enough power to be fatal, thus you should never open one.
What does CRT stand for?An electron beam striking a phosphorescent surface creates images in a cathode-ray tube (CRT), a specialized vacuum tube. CRTs are typically used for desktop computer displays. The "picture tube" in a television receiver is comparable to the CRT in a computer display.
What characteristics does CRT have?Flat screen, touch screen, anti-reflective coating, non-interlaced, industrial metal cabinet, and digital video input signal are typical features of CRT monitors. As opposed to the typically curved screen found in most CRT displays, the monitor's screen can be (almost) flat.
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Answer:
CRT monitor
Explanation:
A cathode ray tube (CRT) monitor can store large amounts of electricity, even when unplugged. You should never open a CRT monitor, as the capacitors within the CRT can store enough electricity to be lethal.
LCD monitors do not use large capacitors and are much safer to work on than CRT monitors (although the CCFL backlight has mercury vapor in it, which could be harmful if the tube is broken).
DVD optical drives and hard disk drives do not store electricity in sufficient quantity to be harmful.
Create a program that asks the user to input three integers. After saving the values, the
program should identify the maximum and minimum from the three numbers. The output
should read
The minimum number entered was….
The maximum number entered was….
Here is a Python program that asks the user to input three integers and then outputs the minimum and maximum number:
Explain how abstraction makes your computer easier to use. Give at least one example.
Abstraction removes all specific details, and any problems that will help you solve the problem. Thus makes your computer easier to use.
What is abstraction?An abstraction is a generic thought as opposed to one that pertains to a specific thing, person, or circumstance. The concept of abstraction is one that applies to both the actual world and OOP languages.
The typical details of an idea are left out. Code that uses abstractions is simpler to comprehend since it focuses on the main functions and operations rather than the minute details. Don't program to implementations; program to interfaces.
Therefore, abstraction eliminates all specific information and any issues that could aid in problem-solving.
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In the flag, the RGB values next to each band indicate the band's colour.
RGB: 11111101 10111001 00010011
RlGB: 00000000 01101010 01000100
RGB: 11000001 00100111 00101101
First, convert the binary values to decimal. Then, to find out what colours these values correspond to, use the Colour names' handout (ncce.io/rep2-2-hw) or look up the RGB values online. Which European country does this flag belong to?
Answer:
To convert the binary values to decimal, you can use the following steps:
Start with the rightmost digit and assign it the value of 0.
For each subsequent digit moving from right to left, double the value of the previous digit and add the current digit.
For example, to convert the first binary value, 11111101, to decimal:
10 + 02 + 04 + 08 + 016 + 132 + 164 + 1128 = 253
So the first binary value, 11111101, corresponds to the decimal value 253.
Using this method, you can convert the other binary values to decimal as well. To find out what colours these values correspond to, you can use the Colour names' handout or look up the RGB values online.
To determine which European country this flag belongs to, you can try looking up the colours and seeing if they match any known flags. Alternatively, you could try searching for flags of European countries and see if any of them match the colours you have identified.
np.arange(5,8,1) what output will be produced?
Answer: [5 6 7]
Explanation: The np.arange takes in three parameters ->start,stop,step.
Hence, since we our range is 5 to 8, incrementing by 1 until we reach 8, giving us a list -> [5,6,7]
Put the networks below in order according to the geographic distance they cover. Put a one next to the network that covers the largest area, a two next to the one that covers the second largest area, etc.
LAN
WAN
MAN
Answer:
LAN
MAN
WAN
Explanation:
A LAN (Local Area Network) typically covers a small geographic area, such as a single building or campus. A MAN (Metropolitan Area Network) covers a larger geographic area, such as a city or metropolitan region. A WAN (Wide Area Network) covers the largest geographic area, such as a country or the entire world.
solve the MRS y,x = 12 mean? for constant mariginal utility?
answer
The MRS y,x = 12 means that the ratio of marginal utilities between two goods (y and x) is 12. This means that for every 12 units of good y the consumer will give up 1 unit of good x. This holds true if the consumer has constant marginal utility.
Alvin has designed a storyboard using the following technique. Which storyboard technique did he use?
A.
hierarchical
B.
linear
C.
webbed
D.
wheel
50 Points <3
Answer:
D. Wheel storyboard
Explanation:
The wheel method is like spokes connected to a main hub.
what do you understand by statistic
Statistics is the study and manipulation of data, including methods for data collection, evaluation, analysis, and interpretation.
Describe statistics using an example.Finding out how many people in a town watch TV relative to the overall population of the town is an example of statistical analysis. Here, the small group of individuals drawn from the population is referred to as the sample.
What are types and statistics?Statistics is a technique for interpreting, analyzing, and summarizing data in mathematics. In light of these characteristics, the various statistical types are divided into: Statistics that are descriptive and inferential. We analyze and understand data based on how it is presented, such as using pie charts, bar graphs, or tables.
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Why did Madison recommend a server-based network for SEAT?
A) It provides centralized access to resources.
B) It is simpler to expand.
C) It is easier to operate.
D) It is less expensive.
E) It provides more security.
what is primary key? List any two advantage of it.
How BFS takes more memory than DFS?
Answer:
The BFS have to track of all nodes on the same level
• Describe the core components and terminology of Group Policy.
The core components and terminology of the group policy are directory services and file sharing.
What is the group policy component?A GPO is a virtual object that stores policy-setting information and consists of two parts: GPO's and their attributes are saved in a directory service, such as Active Directory.
It essentially provides a centralized location for administrators to manage and configure the settings of operating systems, applications, and users.
File share: GPO's can also save policy settings to a local or remote file share, such as the Group Policy file share.
Therefore, the group policy's main components and terminology are directory services and file sharing.
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Rory has asked you for advice on (1) what types of insurance she needs and (2) how she should decide on the coverage levels vs monthly premium costs. Give Rory specific recommendations she can follow to minimize her financial risk but also keep a balanced budget.
She should get a basic health insurance plan with a monthly premium choice as she is a single lady without children in order to make payments more convenient.
How much does health insurance cost?All full-time employees (30 hours or more each week) have their health insurance taken out of their paychecks. It will total 9.15 percent of your salary when combined with your pension payment. For illustration, a person making 300,000 per month will have 27,450 taken out.
Where in the world is medical treatment free?Only one nation—Brazil—offers universally free healthcare. According to the constitution, everyone has the right to healthcare. Everyone in the nation, even transient guests, has access to free medical treatment.
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Select the correct answer.
Ergonomic principles suggest minimizing pressure points while working on a computer. What will help to minimize pressure points while doing
sedentary work?
O A. use handles on boxes
O B.
take regular breaks
O C.
use cushioning while sitting
arrange your work area
O
D.
Reset
Next
I think the third option C
Directions :: Write a Ship class. Ship will have x, y, and speed properties. x, y, and speed are integer numbers. You must provide 3 constructors, an equals, and a toString for class Ship.
One constructor must be a default.
One constructor must be an x and y only constructor.
One constructor must be an x, y, and speed constructor.
Provide all accessor and mutator methods needed to complete the class.
Add a increaseSpeed method to make the Ship speed up according to a parameter passed in.
Provide an equals method to determine if 2 Ships are the same(i.e. in the same location).
You also must provide a toString() method.
The toString() should return the x, y, and speed of the Ship.
In order to test your newly created class, you must create another class called ShipRunner. There you will code in the main method and create at least 2 Ship objects (although you can create more if you like), using the constructors you created in the Ship class. Then you will print them out using the toString method and compare them with the equals method.
I'm trying to make an equals method I just don't know how to
Answer: Assuming this is in the java language.. the equals() would be
Explanation:
public boolean equals(Object o){
if(o == this){
return true;
}
if (!(o instanceof Ship)) {
return false;
}
Ship s = (Ship) o;
return s.x == this.x && s.y == this.y && s.speed == this.speed;
}
How do networks help protect data?
A) by shutting down at 5:00 p.m. each evening
B) by restricting access to department chairs
C) by scheduling regular backups
D) by preventing access by more than one person at a time
D) by preventing access by more than one person at a time
Networks use authentication and authorization to control access to data. They require that a person entering the network has valid credentials, such as a username and password, before they can access any data on the network. Once the credentials have been provided and verified, the user is typically given limited access to the data that is based on authorization rules set up within the network. This helps ensure that data is securely accessed by only those users that need to access it, preventing unauthorized access by multiple persons at once.
Code to be written in python:
Correct answer will be automatically awarded the brainliest!
Since you now have a good understanding of the new situation, write a new num_of_paths function to get the number of ways out. The function should take in a map of maze that Yee Sian sent to you and return the result as an integer. The map is a tuple of n tuples, each with m values. The values inside the tuple are either 0 or 1. So maze[i][j] will tell you what's in cell (i, j) and 0 stands for a bomb in that cell.
For example, this is the maze we saw in the previous question:
((1, 1, 1, 1, 1, 1, 1, 1, 0, 1),
(1, 0, 0, 1, 1, 1, 0, 0, 1, 1),
(0, 1, 1, 1, 0, 0, 1, 1, 1, 0),
(1, 1, 0, 1, 1, 1, 1, 0, 1, 1),
(0, 1, 0, 1, 0, 0, 1, 0, 1, 0),
(1, 0, 1, 1, 1, 1, 0, 1, 1, 1),
(0, 1, 1, 1, 1, 1, 1, 1, 1, 0),
(1, 0, 1, 0, 0, 1, 1, 0, 1, 1),
(1, 0, 1, 1, 1, 0, 1, 0, 1, 0),
(1, 1, 0, 1, 0, 1, 0, 1, 1, 1))
Note: You should be using dynamic programming to pass time limitation test.
Hint: You might find the following algorithm useful:
Initialize an empty table (dictionary), get the number of rows n and number of columns m.
Fill in the first row. For j in range m:
2.1 If maze[0][j] is safe, set table[(0, j)] to be 1 because there's one way to go there.
2.2 If maze[0][j] has a bomb, set table[(0, k)] where k >= j to be 0. Since one cell is broken along the way, all following cells (in the first row) cannot be reached.
Fill in the first column. For i in range n:
3.1 If maze[i][0] is safe, set table[(i, 0)] to be 1 because there's one way to go there.
3.2 If maze[i][0] has a bomb, set table[(i, 0)] and all cells under it to be 0. The reason is same as for the first row.
Main dynamic programming procedure - fill in the rest of the table.
If maze[i][j] has a bomb, set table[(i, j)] = 0.
Otherwise, table[(i, j)] = table[(i - 1, j)] + table[(i, j - 1)]
Return table[(n - 1, m - 1)]
Incomplete code:
def num_of_paths(maze):
# your code here
# Do NOT modify
maze1 = ((1, 1, 1, 1, 1, 1, 1, 1, 0, 1),
(1, 0, 0, 1, 1, 1, 0, 0, 1, 1),
(0, 1, 1, 1, 0, 0, 1, 1, 1, 0),
(1, 1, 0, 1, 1, 1, 1, 0, 1, 1),
(0, 1, 0, 1, 0, 0, 1, 0, 1, 0),
(1, 0, 1, 1, 1, 1, 0, 1, 1, 1),
(1, 1, 0, 1, 0, 1, 0, 0, 1, 1),
(0, 1, 1, 1, 1, 1, 1, 1, 1, 0),
(1, 0, 1, 0, 0, 1, 1, 0, 1, 1),
(1, 0, 1, 1, 1, 0, 1, 0, 1, 0),
(1, 1, 0, 1, 0, 1, 0, 1, 1, 1))
maze2 = ((1, 1, 1, 1, 1, 1, 1, 1, 1),
(1, 1, 1, 1, 1, 1, 1, 1, 1),
(1, 1, 1, 1, 1, 1, 1, 1, 1),
(1, 1, 1, 1, 1, 1, 1, 1, 1),
(1, 1, 1, 1, 1, 1, 1, 1, 1),
(1, 1, 1, 1, 1, 1, 1, 1, 1),
(1, 1, 1, 1, 1, 1, 1, 1, 1))
maze3 = ((1, 0, 1, 1),
(1, 0, 1, 1),
(1, 0, 1, 1),
(1, 0, 1, 1),
(1, 0, 1, 0),
(1, 0, 0, 1))
Test Cases:
num_of_paths(maze1) 2
num_of_paths(maze2) 3003
num_of_paths(maze3) 0
Which company has the highest number of operating system versions on the market?
Linux
Microsoft
Apple
IBM
Microsoft has the highest number of operating system versions on the market, including Windows 11, Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, Windows NT, Windows ME, Windows 98, Windows 95, Windows 3.1, Windows 3.0, Windows 2.0, and Windows 1.0.
Can someone write a code that makes circles change colors. Name it update () function.
Using the knowledge in computational language in python it is possible write a code that makes circles change colors.
Writting the code:import PyQt5, sys, time,os
from os import system,name
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import QPoint,QTimerEvent,QTimer,Qt
from PyQt5.QtWidgets import QWidget,QApplication,QMainWindow
from PyQt5.QtGui import QPainter
class Stoplight(QMainWindow):
def __init__(self,parent = None):
QWidget.__init__(self,parent)
self.setWindowTitle("Stoplight")
self.setGeometry(500,500,250,510)
def paintEvent(self,event):
radx = 50
rady = 50
center = QPoint(125,125)
p = QPainter()
p.begin(self)
p.setBrush(Qt.white)
p.drawRect(event.rect())
p.end()
p1 = QPainter()
p1.begin(self)
p1.setBrush(Qt.red)
p1.setPen(Qt.black)
p1.drawEllipse(center,radx,rady)
p1.end()
class Stoplight1(Stoplight):
def __init__(self,parent = None):
QWidget.__init__(self,parent)
self.setWindowTitle("Stoplight")
self.setGeometry(500,500,250,510)
def paintEvent(self,event):
radx = 50
rady = 50
center = QPoint(125,125)
p = QPainter()
p.begin(self)
p.setBrush(Qt.white)
p.drawRect(event.rect())
p.end()
p1 = QPainter()
p1.begin(self)
p1.setBrush(Qt.green)
p1.setPen(Qt.black)
p1.drawEllipse(center,radx,rady)
p1.end()
if __name__ == "__main__":
application = QApplication(sys.argv)
stoplight1 = Stoplight()
stoplight2 = Stoplight1()
time.sleep(1)
stoplight1.show()
time.sleep(1)
stoplight2.show()
sys.exit(application.exec_())
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Code to be written in python:
Correct answer will automatically be awarded the brainliest.
One of the senior wizards Yee Sian was trapped in a maze during a mission. The maze has n * m cells, labelled from (0, 0) to (n-1, m-1). Starting at cell (0, 0), each time Yee Sian can only take one step, either to the right or down. We wish to find out the number of possible paths to the destination (n - 1, m - 1). A sample path is shown in the figure below.
Having learnt the technique of speeding up the pascal function through memoization, you decide to apply it here. If Yee Sian can walk out by himself (number of paths > 0), tell him how many ways there are. Otherwise, report to Grandwizard and send a rescue team.
Write a function num_of_paths that takes in two integers representing the number of rows (n) and columns (m) in a maze and returns an integer value of number of paths from cell (0, 0) to cell (n - 1, m - 1). The table and skeleton code are given to you. Your table is essentially a dictionary that stores (i, j): val pairs which indicate the number of paths from cell (0, 0) to cell (i, j).
Note: You may assume that all inputs n and m are valid. i.e. n > 0, m > 0.
Incomplete Code:
table = {} # table to memoize computed values
def num_of_paths(n, m):
# your code here
pass
Test Cases:
num_of_paths(1, 100) 1
num_of_paths(123, 1) 1
num_of_paths(3, 3) 6
num_of_paths(10, 10) 48620
num_of_paths(28, 56) 3438452994457305131328
In what ways does a computer network make setting appointments easier?
A) by providing a common calendar
B) by reassigning workloads to enable attendance
C) by sending out invitations
D) by telephoning those involved
E) by sending electronic reminders
The best option is A) by providing a common calendar. A common calendar can be used to check availability and schedule appointments, making the process of setting appointments easier.
However...
All of the options (A, C, D, and E) could potentially make setting appointments easier on a computer network.
A) A common calendar can be used to check availability and schedule appointments.
B) Workloads could be reassigned to enable attendance at appointments, but this is not directly related to the use of a computer network.
C) Invitations to appointments can be sent electronically through the network.
D) Telephone calls can be made through the network.
E) Electronic reminders can be sent through the network to help ensure that appointments are not forgotten.
Which of the following IPv4 addresses is a public IP address?
An example of Pv4 addresses that is a public IP address is
An example of a public IPv4 address is "8.8.8.8". This is a public IP address that is assigned to one of Go ogle's DNS servers. Any device connected to the Internet can use this IP address to resolve domain names and access websites.What is the IP address about?
A public IP address is a globally unique IP address that is assigned to a device or computer that is connected to the Internet. Public IP addresses are used to identify devices on the Internet and are reachable from any device connected to the Internet.
On the other hand, private IP addresses are used within a local area network (LAN) or within a private network, and are not reachable from the Internet.
They are used to identify devices within a local network, such as a home or office network. Private IP addresses are not unique and can be used by multiple devices within a LAN.
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A(n) ____ is a central computer that enables authorized users to access networked resources.
A) peripheral
B) server
C) application
D) LAN
Answer:
Server
Explanation:
Server is a central computer that enables authorized users to access networked resources.