What defines a valid IP address? All the IPs in the range 0-255.0-255.0-255.0-255 ? Is 0.0.0.0 a valid IP address? What about 0.0.0.128 or 255.255.255.0 ?
The problem statement was really clear on what a valid email address looks like, but I think I'm getting wa due to the lack of definition of an IP address.
Thanks.