Amazon Software Development Engineer (SDE I) interview questions

It is very difficult, that interviewer asked graphs and tress depth questions in dsa. I am unable to answer those questions and i tried to give answers but it is not possible for me.

Amazon’s interview process includes an online assessment, a technical screening (coding and problem-solving), and multiple interviews focusing on data structures, system design, and behavioral questions based on Leadership Principles. It tests both technical depth and cultural alignment.