The interview process consists of three stages: first, an online test (OA); second, a phone interview with two coding questions; and finally, an onsite interview.

The onsite interview includes three technical parts and two behavioral parts. The technical parts are: one Object-Oriented Design question and two coding questions. You will need to code on a whiteboard or a computer. One of the behavioral questions involves discussing your projects from your resume, and the other is a lunch with two engineers.

I believe I performed well in all five rounds and completed all coding exercises. The feedback from the interviewers was positive. However, after several days, I was informed that they would be proceeding with other candidates. I cannot understand the reasoning behind their decision. While the interview experience itself was good, I am truly perplexed by how they arrived at their conclusion.

To design Russian blocks:

• One about trees
• One about matrices