Meta Research Scientist, Machine Learning (PhD) interview questions

Recruiter reached out to schedule an appointment. They asked 1 hard-medium, 1 medium Leetcode style question during the interview. I did the first but likely not at the complexity the interviewer desired. I didn't have much time to finish the second. Received rejection a few days later.

I was contacted by a recruiter. I was asked to respond to a set of questions and attach my resume. Shortly after, we set up an interview. The interview took place over Zoom and coderpad.