Answered Essay: This is algorithm and advanced data structure class.

This is algorithm and advanced data structure class.

and please use python or c++ to complete this assignment.

Your program should:

Your program file must be named: counting_inversions.{py,cpp,rs}.

Take a filename as a command line input (see this example for how to do command line input and read a file in C++ and Python3).

Read the data into a 1-dimensional std::vector (C++) or a list (Python).

Pass the data to your counting inversions function.

Finally, your program should print the number of inversions that it found.

If you want to test your program I would recommend that you take a look at this Python program for generating input files. Once your program is completed, one partner should submit it to Gradescope (you should get immediate feedback and you can submit as many times as you’d like without it affecting your grade). Note: the autograder will not be available until next Monday.

Example Input/Output

Here is an example input file:

8
1
3
5
2
4
6
7
8

The above example is taken from our slides (with a couple extra numbers). The first line denotes how many numbers are in the array (n = 8). The remaining numbers should be read into an array and you should count the number of inversions. I will only test your program on inputs with a size that is a power of 2.

Your program’s output should look like this:

3

Notes

For Python Programs

I am requiring you to include a shebang at the top of your file/script. If you are using Python3 your shebang will look like this:

#!/usr/bin/env python3

If you are using Python 2.7 you should use this:

#!/usr/bin/env python

These will make it easy for me to run your code regardless of which version of Python you choose to use. Remember, any comments that you add to your file should come below this shebang.

For C++ Programs

I will be compiling your programs using g++. The exact command is:

g++ -std=c++14 -Wall -o counting_inversions counting_inversions.cpp

Expert Answer

 

Solution==============

#!/usr/bin/env python3

#The function
def countInversions(arrList):
count=0
for i in range(0,len(arrList)):
for j in range(i+1,len(arrList)):
if arrList[i] > arrList[j]:
count+=1

return count

#File Handling and output
fileName=input(“Enter the file name: “);
newList=[]

#opening the file
f = open(fileName)
#we dont need the first line of input, which indicates the
#number of lines in file
f.readline()

#iterating over each line in file
for num in iter(f):
newList.append(int(num))
f.close()

print(newList)
print(“Result:”)
print(countInversions(newList))

Output=============

Buy Essay
Calculate your paper price
Pages (550 words)
Approximate price: -

Help Me Write My Essay - Reasons:

Best Online Essay Writing Service

We strive to give our customers the best online essay writing experience. We Make sure essays are submitted on time and all the instructions are followed.

Our Writers are Experienced and Professional

Our essay writing service is founded on professional writers who are on stand by to help you any time.

Free Revision Fo all Essays

Sometimes you may require our writers to add on a point to make your essay as customised as possible, we will give you unlimited times to do this. And we will do it for free.

Timely Essay(s)

We understand the frustrations that comes with late essays and our writers are extra careful to not violate this term. Our support team is always engauging our writers to help you have your essay ahead of time.

Customised Essays &100% Confidential

Our Online writing Service has zero torelance for plagiarised papers. We have plagiarism checking tool that generate plagiarism reports just to make sure you are satisfied.

24/7 Customer Support

Our agents are ready to help you around the clock. Please feel free to reach out and enquire about anything.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

HOW OUR ONLINE ESSAY WRITING SERVICE WORKS

Let us write that nagging essay.

STEP 1

Submit Your Essay/Homework Instructions

By clicking on the "PLACE ORDER" button, tell us your requires. Be precise for an accurate customised essay. You may also upload any reading materials where applicable.

STEP 2

Pick A & Writer

Our ordering form will provide you with a list of writers and their feedbacks. At step 2, its time select a writer. Our online agents are on stand by to help you just in case.

STEP 3

Editing (OUR PART)

At this stage, our editor will go through your essay and make sure your writer did meet all the instructions.

STEP 4

Receive your Paper

After Editing, your paper will be sent to you via email.

× How can I help you?