Amazon Software Development Engineer-II interview questions

Written Test (3 coding questions) Four rounds of Interview Coding questions in Written test: 1) In an array of integers, find pair of integers whose sum is equal to closest to K 2) getIntegerComplement() function implement 3) Subroot in a Binary tree with longest leaf-to-leaf path

I was approached by a recruiter on LinkedIn for a regional interview. The recruiter forwarded my resume to Amazon's HR department. A few weeks later, Amazon emailed me an invitation to the offsite interviews in Orlando. The interview consisted of four, one hour interview sessions with different interviewers. I saw many interviewees be dismissed after their second interview, and a few more after their third and fourth interview. I dressed casually (jeans and polo) and brought my own graph paper, engineering pencils, and eraser for the expected paper coding questions. I also brought my MacBook Air, which came in helpful when my paper code became unreadable (I typed it in and emailed to the interviewer).