Amazon Software Developer interview questions

I initially gave my resume to Amazon during a career fair during which they took me aside and asked me a to write a simple program with pen and paper while standing beside their stand. Two weeks later I was contacted and told I had been selected for an on-campus interview. During the interview I was asked some technical questions and told that if I was selected to move-on I'd be contacted as to schedule another interview the following day. Sure enough I was contacted and had the next interview scheduled for the next day. I'd say the first interviewer was friendly, helpful, and definitely helped me relax unlike the second interviewer. The guy came to pick me up in the lobby a full 10min late; he didn't bother with small talk and straight-up ignored my "how are you?". He then proceeded to present me with a problem and before he was done explaining the details of what he wanted his cellphone began ringing, and, he picked up. He then excused himself from the closed cubicle the interview was being held-in and I might have overheard a "sorry I'll be right back". So here I am standing in front of a puzzle who's full definition I have yet to hear and only 35 out of the 45min left because the guy was late. Might I add at this point that he was not behind schedule as my position whilst waiting in the lobby allowed me to see the previous candidate exit the cubicle well on time. A minute later he comes back in and complains to me of how bad the reception is "down here" to which I respond that he might want to step outside of the suite to get a better signal, which he does. At this point I'm really frustrated and trying to start working on the problem while not even having it's entire definition. Finally he comes back and explains to me that the phone call was from another candidate that seemed to have had troubles finding his way to the building. Seriously!? Why didn't the guy just plan ahead..... well, it didn't matter. I was the one directly suffering from another candidate's incompetency. In the end I solved the problem and whilst checking my solution he pointed out that he was surprised of a particular aspect of my solution and that he would've solved it doing that particular thing differently; to which I point out that his solution was less space-efficient than mine whilst having the same time complexity. At this point I think I offended him and tried backing out of my statement telling him how his solution probably was better as it was less complex and allowed for more clarity, which is important I pointed out. He then went on a rent about how new hires at amazon recently all had bad coding habits.... As a final note, on top of all this, the guy kept burping. His burps had a disgusting smell, he acted like nothing happened every-time and me, seating right beside him had the utter pleasure of finding out what he had ate for lunch. He ended the interview (on-time, i.e. I only got 35min - the phone call attempts) and told me that I'd be contacted for either a third-interview the next day or that I'd be sent out to seattle. I overall had a bad experience with amazon and I am very disappointed.

Just had first phone Interview. Asked a bunch of background questions to which I think I talked to much maybe...But then he immediately moved into a simple coding question and then into a pretty tricky one. I tried my best and I'm not sure if I got through both. Afterwards, just chatted about the environment, work, management opportunities, etc which were important to me.