Bluetooth connectivity team interview.

Interviewers were nice, as they are always asked to be. We spent a few minutes discussing the team, the position, and a little about myself.

I was asked to describe a project I worked on and what my part in it was.

Then, there were two technical questions. One is stated below; the second was very custom to their team but not overly difficult.

Given a string, return it without whitespaces.

Follow-up: Do it in-place.