Write a program to find user defined function

Question

Pls answer this

Answer 1

That's not how this forum works.

Please review the following:

https://www.sololearn.com/discuss/1316935/?ref=app
https://www.sololearn.com/discuss/3021159/?ref=app

If you need help with THE CODE you have written, attach the code and state what's not working. Someone might figure it out with you.