Amazon Software Development Engineer interview questions

It started with HR phone screen, then a technical phone screen, and finally on-site interview. The process goes very smoothly and basically you could know the result in a short time. Very efficient and nothing to complain about. However, the on-site interview is also very fast-paced, which means if you don't complete the questions in time, you wouldn't get a chance to ask the interviewer any questions. Some interviewers are pretty good but some are just okay and might make you feel that he doesn't care what you're talking about ;).

They initially had an aptitude and programming round.The questions were fairly standard and programming question was related to graphs. 1.Whether the given undirected graph has a cycle or not. 2.One logical puzzle question