Amazon Software Development Engineer interview questions

First there is a coding test containing 20 mcq and 2 coding questions. Then two rounds of interviews take place . Knowledge of trees and graphs is very important. One interview goes on for about an hour

Interviewed with many people. Challenging questions. Friendly environment. Communicated expectations beforehand which helped with the preparation. Very fast response with offer. Interview rooms and meetings organization could be improved a bit, but overall pretty good experience.