Amazon Software Engineer(Internship) interview questions

The interviewer introduced himself and then asked about me. He questioned about my projects and asked what was different in it apart from what is already available. Next he moved on to DSA question, where asked me a DFS on 2D matrix question which has a graph approach. He asked me to explain the approach in the first 30 minutes where he questioned me about all the base cases and then he asked me to code. While writing the code he expected me to keep explaining all the edge cases and so i kept commenting. Once the code was done, do not forget to do a dry run on your own and then discuss the time complexity. He asked a few follow up questions to it which were actually good and took time. Overall the interview experience was good and satisfying