what is the error in this code?

Question

https://code.sololearn.com/ch81zas5fa2M/?ref=app

Answer 1

The error code tells you that scanf and printf aren't defined. You'll need to #include <cstdio> to use those functions, or use cin and cout which are part of iostream that you're currently importing.
You've also missing a semi colon after the final printf.

Answer 2

try to find it