TikTok Machine Learning Engineer interview questions

Total of 3 rounds. First round was 1 hour. The first half was technical (Leetcode style, DP) and the second half was behavioural. There was some time for questions at the end.

Told to solve algorithm problem about reversing linked list. Estimated medium difficulty on leetcode standard. Interviewer has terrible English, I have hard time understanding and doesn't seem very interested. Managed to solve but not with the most optimal solution. Did not get accepted