Meta Machine Learning Engineer interview questions

need to solve 2 coding questions in 45 mins, the interviewer was very nice and friendly, and asked about time and space complexity. I was able to solve these two questions in a timely manner

The process is classic: 1. HR interview 2. First Turn: Coding interview 2. Second Turn: 2x Coding Interviews, 1 ML System Design, 1 Behavioral Then review by a committee, in my case, I had to do another coding interview because they were not sure