Depending on how early into the interview process it was, that guy just might have been looking to see how you arrived at a solution no matter how correct it wa

Depending on how early into the interview process it was, that guy just might have been looking to see how you arrived at a solution no matter how correct it was. I would rather see someone's problem solving skills than how many whiteboard problem solutions they can memorize. Even in school, I've had plenty of professors that would give partial credit for exams that may not have the right answer but the steps to arriving at a solution or deriving a formula to come up with the solution were on track.