How can I delete warnings from the output of my c++ code?

Question

When I run my program, there are warnings in the output.
How can I delete them?
https://code.sololearn.com/cSAc72rVOn83/?ref=app

Answer 1

The code is deleted

Answer 2

https://code.sololearn.com/csac72rvon83/?ref=app

Answer 3

Thank you
It was useful