Reverse File 1

• Problem Description

  
  Write a python program to create a file and display the contents (dynamic number of lines) and print the files contents in reverse order.
  
  Hint:
  
  1. Create a File
  2. Take the input as number of lines to be written into the file
  3. Based on the number of lines get the input from the user
  4. Get the file name from the user for performing operations
  5. Count the number of words in the file and display the number of words in the fie
  
  
  Input:
  1. Filename
  2. The number of lines to be written into the file
  3. File name to perform operations

• CODING ARENA

• import os

  fname = input()

   

  with open(fname, 'w+') as f:

      a=int(input())

      for i in range(a):

          x=input()

          f.write(x+ os.linesep)

  f.close()

  fnam=input()

  for line in reversed(list(open(fnam))):

      print(line.rstrip())

  
  

  f.close()

• Test Case 1

  
  Input (stdin)

  sample.txt
  
  4
  
  eLab an auto evaluation tool in Tamilnadu - eLab
  
  eLab will be launched in SWAYM platform soon - eLab
  
  eLab is used by 45000+users every year- eLab
  
  eLab is a copyleft tool - eLab
  
  sample.txt
  
  

  Expected Output

  eLab is a copyleft tool - eLab
  
  eLab is used by 45000+users every year- eLab
  
  eLab will be launched in SWAYM platform soon - eLab
  
  eLab an auto evaluation tool in Tamilnadu - eLab

• Test Case 2

  
  Input (stdin)

  sample.txt
  
  2
  
  eLab an auto evaluation tool in Tamilnadu
  
  eLab will be launched in SWAYM platform soon
  
  sample.txt
  
  

  Expected Output

  eLab will be launched in SWAYM platform soon
  
  eLab an auto evaluation tool in Tamilnadu