Amazon Software Development Engineer interview questions

Got a call for first phone interview. Went ok, could answer most of the questions except for one. Give some good solutions. One of the question I was knew already so it wasn't very difficult for me to think. Was skeptical to get a call for second phone interview but I did get a call. The second interview went really very well... a perfect example of excellent interview... answered all the questions with 100% accuracy without a single doubt in mind. The interviewer was happy could make it from the conversation and it ended in 30mins since he said he did not have anymore questions to ask. Well was waiting for an onsite call but got a reject finally. Well my luck didn't turn out well.. Little bit of disappointment.... it happens all the time.

1 hour phone interview. nice contact. Did not ask very much about me, answered questions about the company with pleasure.