Amazon SDE-intern interview questions

First was an Online assessment, I did alright then got moved to the final Round with behavioral focusing on their leadership principles, and then a medium technical question. It is not bad but you just need to grind hard for the final round interview.

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.