lowerBoundUpperBoundCal

[amwaiting1]

Issue Id you have worked upon -

Lower Bound - Upper Bound Calculator #544

Briefly explain your program logic -

This tool allows the user to enter set X and set Y, choose whether Z is the intersection or union of set X, Y, and finally output the upper and lower limits of set Z.

Screenshots(Attach 2 screenshots of your own input and output) -

By raising this PR I affirm that -

• [x] My code follows the guidelines of this project.
  

• [x] I have performed a self-review of my own code.
  

• [x] I have commented my code.
  

• [x] My code gives the correct output.
  

• [x] I affirm that I strictly follow contributing guidelines and code of conduct.

[SarthakKeshari]

@amwaiting1, There is a file mismatch. Kindly the revert the files that are added and add the required file.