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grandymaker [24]
3 years ago
11

Program 4: But I haven’t taken Calculus yet! OK – we admit, this one might look nasty, but read on because it’s not that bad. On

e of the things that computing folks do A LOT (especially CS students) is analyze how long a program takes to run. In the first step, something might take 1 unit of CPU time. The second step might take 2, the third 3 and so on. Mathematically, that would be expressed by the "summation" operator as this: ∑???? ???? ????=1 This is may look complex, but all it’s saying is that i goes from 1 to n and you sum all those numbers together. So, if (n = 10), ∑???? ???? ????=1 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55 Fortunately, this reduces to a simple formula. When summing numbers from 1-n, the sum is: (n+1)*n/2 Why? It’s all in how you "pair" the numbers together. In the example above, we could pair (1+10) =11, (2+9)=11, (3+8)=11 and so on. That is, we have n/2 "pairs" of (n+1). Your task is, without using a loop (which we haven’t covered yet), to write a program that asks the user for a number, then prints out the sum of 1 to that number. If you use a loop, you will receive no credit
Computers and Technology
1 answer:
34kurt3 years ago
5 0

Answer:

wdadawdawdawdawdawdawdawsdwfawf

Explanation:

Program 4: But I haven’t taken Calculus yet! OK – we admit, this one might look nasty, but read on because it’s not that bad. One of the things that computing folks do A LOT (especially CS students) is analyze how long a program takes to run. In the first step, something might take 1 unit of CPU time. The second step might take 2, the third 3 and so on. Mathematically, that would be expressed by the "summation" operator as this: ∑???? ???? ????=1 This is may look complex, but all it’s saying is that i goes from 1 to n and you sum all those numbers together. So, if (n = 10), ∑???? ???? ????=1 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55 Fortunately, this reduces to a simple formula. When summing numbers from 1-n, the sum is: (n+1)*n/2 Why? It’s all in how you "pair" the numbers together. In the example above, we could pair (1+10) =11, (2+9)=11, (3+8)=11 and so on. That is, we have n/2 "pairs" of (n+1). Your task is, without using a loop (which we haven’t covered yet), to write a program that asks the user for a number, then prints out the sum of 1 to that number. If you use a loop, you will receive no credit

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Umnica [9.8K]

Answer:

Procurement

Explanation:

Characteristics hardware lifecycle:

  • Procurement- Acquiring new IT hardware assets involves evaluating vendors, purchase orders, receiving, and device labeling.
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Each row in a database is a set of unique information called a(n) (A.)table,(B.)record,(C.)object,(D.)field
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Answer:

-------------------------######################

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krok68 [10]
<span>Dynamic Network Address Translation (DNAT)</span>
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3 years ago
Write a program that reads a book (a file in text format), breaks each line into words, strips whitespace and punctuation from t
diamong [38]

Answer:

Following are the code to this question:

file= open('book.txt') #open file

li= {} #define an empty list

for lines in file: # use for loop Split file data into words

   d= lines.lower().strip(' !?').split() #define variable d that Add it to map

   for val in d: #define loop to store data  

       if val not in li: #check value is not in list

           li[val] = 0 #define list and assign value in 0

       li[val] = li[val] + 1 #Sort the book data and add its value  

m = sorted(li.items(),key = lambda x : -x[1]) #sorted value into the m variable  

print(m[:10]) #print value

Output:

please find the attachment.

Explanation:

In the given python code first, we open the file "book.txt", in next line, an empty list is defined, that uses the for loop which can be described as follows:

  • In the for loop is used, that reads the file data, and defines a variable "d", that stores the values into the map.
  • In the next line another loop is used, that check file values, if values are the same type so, it adds values and writes it.  
  • In the last line, m variable is used, that sorts the values and use the slicing to print its value.

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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 driv
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The CompTIA Security+ exam (SY0-601) is a test that tests an applicant that he or she has the basic knowledge to perform tasks in IT security and work in cybersecurity. The CompTIA Security+ exam is a vendor-neutral exam that tests applicants' knowledge of IT security materials and their ability to perform core security functions.

You can learn more about Security+ here brainly.com/question/17109203

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