Amazon SDE intern interview questions

The interview lasted for exactly one hourand the interviewer was friendly. He asked me two questions one from graph and other was binary search on arrays question. I got stuck on the graph question and he was continuously helping me by giving hints. Could not solve it at the end. Time complexity was asked for all approaches.

Amazon visited our campus for 6 month SDE internship. There were about 90 candidates shortlisted for the interview and I was among one of them. So, the interview started and the panelists greeted and introduced themselves. The first question they asked me was to describe myself. After that they quickly moved to technical DSA questions. They asked two questions. I was able to answer the first one, but took much time in thinking and I stumbled at some points, though I answered the second question very quickly, but I was rejected. A total of 30 candidates were selected for the internship.