Amazon Software Development Engineer (SDE) I interview questions

I applied to a different position at Amazon. You start with the Online Assignment 1-3. After that I got declined. Half a year after I got a mail from AWS asking me if I'd like to interview to a new position. I had a first technical interview with a developer (over video conference), asking me leetcode questions as well as questions about operating systems. After that I had a 2 interview "on-site" interview day from home, with a team lead and a senior developer, asking hard variations of leetcode questions as well as leadership principal questions. The interviews were overall really fun and challenging, all the people I interacted with (especially the HR representative) were really nice, helpful and welcoming.

process 1) Online OA -2 coding question (prefix sum, greedy, graph are the topics they cover) process 2) OA 2 - work simulation(replying to mail and making decisions) and behavioral (selecting between two types of characteristics) Process 3 ) if ur good with OA 2 then you get 30 minute interview else 3 x 45 min