Senior CEO Frederick Vanbrabant helps you to answer this horrible interview question.

You have probably already heard the horror stories of code interviews where they ask you to reverse a binary tree on a whiteboard. (if not check this blog post that I profoundly disagree with). Well, a few days ago I was in that exact situation. And I had no idea what the interviewer was talking about. So what are these binary trees and why is it so critical that you know how to inverse them? Let’s find out.