I applied for the position online. A recruiter responded with an email but took two weeks to schedule an introductory phone call.

I spoke with the recruiter. The call lasted for about 30 minutes. The recruiter asked several questions about my experience and why I was willing to change my job. The recruiter explained the interview process and asked me for available time slots to schedule the next round, a one-hour technical phone screen.

There will be six other rounds after that: three technical and three behavioral.

Scheduled the phone screen on 2/1.

Phone Screen: The interviewer introduced themselves and asked me to introduce myself. Then, the interviewer asked some questions about my previous experience.

The interviewer moved on to the coding part of the interview and asked me two coding questions.

I solved both questions within the time limit, but the interviewer wanted me to optimize my space complexity for the first question. I couldn't do that.

After three weeks, the recruiter responded with an email stating they would not move forward with me.

I reached out to the recruiter for the reason and feedback, as I was confident about moving to the next round, but I did not receive a response.

Find the maximum depth of a binary tree.

Find an element in a rotated sorted array.