I don't understand how a point is a collection of vertices. Are you talking about X, Y, and Z coordinates? This is a good example of how ambiguity kills an int

I don't understand how a point is a collection of vertices. Are you talking about X, Y, and Z coordinates? This is a good example of how ambiguity kills an interview and reduces it to quickly figuring out what the interviewer is talking about so I might have a decent chance of solving the problem with the time remaining. My experience with interviewing at Google, Facebook, and Amazon can be reduced to "What the hell are you talking about?"