Amazon Software Development Engineer interview questions

I was contacted by an Amazon recruiter in a mass email, with a schedule to sign up for an interview on campus. I had the interview about 5 days later. Two back-to-back 45 minute interviews with just an Amazonian and I (in adjacent rooms, another student and I just swapped places. First one was pretty relaxed, talked about data structures, what he did at Amazon, he asked me a couple simple fast questions typical of a intro CS class exam, and an OO design question. Next person asked me a long question that took me about 40 minutes to complete, and we talked a bit about what she did. I had another offer deadline imminent, so they got back to me with an offer on that Monday (the interview was Friday). Very fast and surprisingly simple process, I'm still surprised that there was really only one (kind of two) interviews. Good experience!

One screening interview and then 3 back to back technical interviews. The screening was done by a seemingly fresh developer who didn't understand some of my answers, so i had to give him another basic algorithm. The technical interviews discussed my resume (thank goodness somebody cares about prior experience), had a graph problem that is solved by BFS, and finally there was a question that was much more complicated than the person asking it realized. Overall, I was frustrated by the level of preparedness of my interviewers.