Status: New grad, BS CS CompE, past Amazon Uber Intern
Position: SDE1 at Amazon
Location: Seatle

First did the three OA stages, the questions are all on leetcode master threads.

Ill preface it that each of the three phone screens had me tell two stories for behavrioal interview, and I tried to tie it to the LP, but I didn't write them out before hand and prepare 2 per LP or anyhting like that.
Phone 1
He asked me to design a class for a picture, where you can get and set colors of pixels. Made an array for the canvas with nxm pixels and made setters and getters, gave me some questions on whats necessary, when I should throw exceptions and when is acceptable, and also gave questions on how should color be represented, RBG values vs a color class, and issues about immutability depending on how its passed in.

Phone 2
Asked best time to buy and sell a stock: https://leetcode.com/problems/best-time-to-buy-and-sell-stock/
not much variation quick interview a lot of questions afterwards

Phone 3
Asked me to tell him if I knew the question he was about to give so we can use another one.
Asked valid parantheses: https://leetcode.com/problems/valid-parentheses/
Told him I knew it, we walked through it by mouth
Gave me 3 sum:https://leetcode.com/problems/3sum/
Already lost 30 mins to last question and behavioral question, just went ahead and did the question the sorting way
He asked if I can make it better than n^2, couldnt do it, dont think you can?

EDIT:
TIMELINE
Early mid August: got reffered (dont think this mattered too much most my friends who applied or went to career fair got OAs)
Last Week of Sept: got assessment
First week of Oct: finished all 3 OA
Oct 18th: told you made it past OA
Oct 30: survey for final interview time
Novemeber 4th: back to back to back phone screen
November 6th: got offer