The onsite interview started at 8 AM. A hotel shuttle was arranged to pick a group of us up at 7 AM. You will be interviewing for the same position with a group of other people, though the actual interview portions are one-on-one. The process includes four interviews followed by lunch.

Interview questions alternated between basic programming questions, where interviewers seemed to think I was completely incompetent, and normal, fairly difficult technical interview questions. There is a good amount of emphasis on your past experience, and a decent amount of the harder problems only required pseudocode.

It is 8 AM, and there are only minimal breaks between interviews. During these breaks, you sit in the lobby chatting with your fellow interviewees/competition. Some food and coffee are available, but be prepared to not have much time to eat or mentally refresh between interviews.

Given a limited amount of information, design all the classes (just prototypes, no implementation) of how you would implement this system.