Why the second output is 66??

Question

I just understand the first one.

https://code.sololearn.com/cfRnbPoTCiE7/?ref=app

Answer 1

When there is no second parameter, the default parameter is used. In this case, the default value b takes is 42, so the output will be 24 + 42 = 66

Answer 2

Hyst1k no problem

Answer 3

because of (int b=42) b gets a default value if not provided.
without that the code wouldn't work if only a single argument is given.

Answer 4

THANK YOU