Amazon Intern Software Developer interview questions

Applied online last year, got an email asking for my availability in January, but got back to me with the interview process in March. 2 phone interviews, each about 45 minutes. Both are technical based. The first one asked a lot of complexity and data structure questions, and the second one asked some definitions and coding. I felt alright for the first interview, but the second one just sucked. And I felt like the interviewer wasn't very good at communicating with people. Topics covered in the interview: 1. reverse linked list 2. hash table 3. binary tree 4. Fibonacci sequence 5. chess design