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3 years ago

Given input characters for an arrowhead and arrow body, print a right-facing arrow. Ex: If the input is: *

Computers and Technology

1 answer:

MrRa [10]3 years ago

6 0

Answer:

Following are the code to this question:

b= input()#defining b variable for input character value

h= input()#defining h variable for input character value

b_width=6#defining b_width variable that holds an integer value 6

r1 = ' ' * b_width+h#defining r1 variable that calculates hash lines

r2 = b*b_width+h*2#defining r3 variable that calculates 6 asterisk and 2 hash line

r3 = b*b_width+h*3#defining r3 variable that calculates 6 asterisk and 3 hash line

print(r1)#print r1 variable value

print(r2)#print r2 variable value

print(r3)#print r3 variable value

print(r2)#print r2 variable value

print(r1)#print r1 variable value

Output:

please find the attachment.

Explanation:

In the given python code, three variable "b,h, and b_width" is declared, in which "b_width" holds an integer variable "6" and variable "b and h" is used to an input character value. In the next line, "r1, r2, and r3" is declared, that holds arrowhead values which can be defined as follows:

In the "r1" variable, it stores space with b_width variable and one h variable value.
In the "r2" variable it stores b_width and 2*h variable value.
In the "r3" variable it stores b_width and 3*h variable value.

At the last, it prints the "r1, r2, and r3" variable value and for arrowheads, it follows the above program code.

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A pointing device uses light to determine hand motion.

kirill [66]

The answer to this is Optical mouse.

The reason the answer is optical mouse is because the optical mouse is a computer mouse which uses a light source, typically a light-emitting diode, and a light detector, such as an array of photodiodes, to detect movement relative to a surface.

Hope this helped :)
have a great day

3 0

2 years ago

What is segmentation and paging?

iogann1982 [59]

Over the years, operating systems have sought to be more efficient, which is why it is vital that the use of main memory such as ram be as intelligent as possible, so that operating systems are more efficient.

Segmentation is a process of dividing the program into logical units, such as sub functions, arrays, variables, etc., making it possible to have processes divided into pieces so that it is easy to access each of the processes that this leads to its execution. Segmentation allows the programmer to contemplate the memory as if it had several address spaces or segments. References to memory consist of an address of the form segment number - offset.

Pagination is a technique where memory space is divided into physical sections of equal size, called page frames. The programs are divided into logical units, called pages, that are the same size as the page frames. In this way, an information page can be loaded in any page frame. The pages serve as an information storage unit and transfer between main memory and auxiliary or secondary memory. Each frame is identified by the frame address, which is in the physical position of the first word in the page frame.

8 0

2 years ago

def getCharacterForward(char, key): """ Given a character char, and an integer key, the function shifts char forward `key` steps

zhenek [66]

Answer:

def getCharacterForward(char, key):
charList = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
if(len(char) > 1):
return None
elif(not isinstance(key, int)):
return -1
else:
index = charList.find(char)
if(index + key <= 25):
return charList[index + key]
else:
return charList[(index + key)% 26]
print(getCharacterForward("C", 4))
print(getCharacterForward("X", 4))

Explanation:

Firstly, define a charList that includes all uppercase alphabets (Line 2). We presume this program will only handle uppercase characters.

Follow the question requirement and define necessary input validation such as checking if the char is a single character (Line 4). We can do the validation by checking if the length of the char is more than 1, if so, this is not a single character and should return None (Line 5). Next, validate the key by using isinstance function to see if this is an integer. If this is not an integer return -1 (Line 6 - 7).

Otherwise, the program will proceed to find the index of char in the charList using find method (Line 9). Next, we can add the key to index and use the result value to get forwarded character from the charList and return it as output (Line 11).

However, we need to deal a situation that the char is found at close end of the charList and the forward key steps will be out of range of alphabet list. For example the char is X and the key is 4, the four steps forward will result in out of range error. To handle this situation, we can move the last two forward steps from the starting point of the charList. So X move forward 4 will become B. We can implement this logic by having index + key modulus by 26 (Line 13).

We can test the function will passing two sample set of arguments (Line 15 - 16) and we shall get the output as follows:

8 0

3 years ago

(Java) Can anyone help me with this ?? The skeleton of the code must be same as the image.

Kay [80]

Is that a essay ur supposed to write

6 0

2 years ago

Which of the following is an accurate explanation of what this paragraph means?

LuckyWell [14K]

Answer:

fifty five years later he burned out the same person who had to go and he said that the same person you met in a long period and I have been on my side and you know what I mean to him but she is the one I want her out and then she has a good time for me to get to the point where I don't know her I would have

4 0

3 years ago