Amazon Software Development Engineer, interview questions

In the month of march, I had a phone interview from amazon. In phone interview they asked me about my background and some what technical questions. and then they settled up an onsite on 2nd April. At onsite, I had 5-6 interviews each about 45 minutes. It was very good experience.

Online test , followed by onsite . During onsite they gave me 3 problems to solve and later I had 3 interviews of which 1 interview was only technical where I was asked to code 1 problem . Online test had 5 programming questions to be solved in 2 hrs . The question are mostly based on fundamentals of computer science mainly composing of data structures like trees , lists , strings and arrays .