I first got the email with assessment link. The test is about 2 hours with 2 coding questions. Right after each coding question, there is a section where require you to give space/time complexity and how you approach the problems.
Interview questions [1]
Question 1
They asked me to explain my code afterwards, mainly asking about time/space complexity and thoughts flow.
I applied through a recruiter. I interviewed at Amazon
Interview
The interview process started with an initial recruiter screening, followed by technical interview rounds. The technical interviews focused on data structures, algorithms, problem-solving, and discussing my approach clearly. The interviewers also asked behavioral questions related to teamwork, challenges, and past projects. Overall, the process was structured and professional.
Interview questions [1]
Question 1
Given a binary tree, how would you find the lowest common ancestor of two nodes if each node also has a parent pointer?
I received an Online Assessment (OA) invitation from Amazon. The assessment consisted of two coding questions of medium to hard difficulty, focusing on data structures, algorithms, and problem-solving skills. The questions required efficient solutions with optimized time and space complexity. After the OA, shortlisted candidates typically proceed to one or more technical interview rounds covering coding, system design, and behavioral questions based on Amazon's Leadership Principles.
Applied online via career site, received OA link within 2 days and cleared it, Round 1- DSA, Round-2 DSA, Round 3- System Design, Round 4- Mixed Technical Discussion and Behavioral.
Interview questions [1]
Question 1
Number of Islands (LC 200 - Medium): You are heavily advised to know how to traverse connected components using a 2D grid.