Amazon Software Development Engineer SDE interview questions

Amazon's SDE interview process includes an online assessment, recruiter screen, technical phone interviews, and a final onsite loop with coding, system design, and behavioral rounds. Emphasis is placed on data structures, algorithms, and Amazon’s Leadership Principles. A Bar Raiser ensures high hiring standards. Strong problem-solving and communication are essential.

I did well in the interview, but I don't know what went wrong. I was confident with my answers and had a good rapport with the panel. They seemed engaged throughout and even appreciated some of my responses. I followed up professionally after the interview, but I never received any clear feedback or reason for rejection, which left me confused. It would have helped to know where I could improve