I received an email stating that Dropbox had seen my resume at a Hackathon and was interested in pursuing my candidacy. I was sent a coding challenge to complete online. While I generally value NDAs, preventing me from sharing specifics, the problem was similar to one previously posted on this site in other interview reviews. It took an hour and a half to complete and was more of a "build-from-scratch" task rather than a difficult algorithms puzzle. I scored 18/18 on it and was emailed two days later to schedule a phone interview.

During the phone interview, I was asked a variation of the counting change problem, which I wasn't quite able to code up. As expected, I received the denial a few days later. Everyone I interacted with was very nice and friendly, and I had a great chat with the interviewer. I would recommend giving this company a shot. There was not any "kool-aid" as is common at most companies; instead, I encountered genuine engineers who seemed eager to hire great talent.

Coding challenge with basic OOP concepts (encapsulation, testing).

(VARIATION OF:) Given a set of possible change, such as {1, 5, 10, 25}, and an amount such as 13, return all possible ways you can give change back to someone.