Menu input validation

Question

How can i validate using loops..??
have tried that way but am getting an error and i dont know how i can solve the error... anyone to help me out.
https://code.sololearn.com/cB2lHRXFQKL1/?ref=app

Answer 1

Hi Coder C++!
You can go to www.code.sololearn.com, copy and paste your code, save it and then include the link in this post. Ok?

Answer 2

am using a pc..how can i attach the program coding