Amazon Software Development Engineer interview questions

having 3 telephone interview, questions like tree level by level print, next bigger number of tree, merge link list, design distributed system, OOD design elevator and address book, then face to face onsite interview with 7 different person including one hr, questions are given from a easy beginning, then follow up with reduce time complexity and memory limitation.

I was approached by a recruiter who then sent my resume over to the Hiring dept. They were prompt and scheduled the interview within a week. There were 4 technical rounds and 1 with HR. All the interviewees were personable and friendly. A lot of the questions involved coding. They walked me through many of the problems and asked questions as I was coding. They wanted to understand my thought process. If I strayed or did something wrong, they'd ask questions to indicate it. Fairly standard questions on algorithms. Definitely prepare for graph, tree algorithms, data structures and be prepared to justify a choice for a data structure. The interviewers didn't particularly care about syntax, but they want to see that you are comfortable putting pen to paper. Also be prepared with atleast 5-6 questions you want to ask them. I ran out of these and it became awkward towards the end!