TikTok Software Engineer interview questions

Decent interview, questions are medium to hard. Interviewers are helpful to give hints and answers lots of questions after the coding challenges. Very interactive interview for all 3 rounds including HR phone screens.

First round technical : Asked java basics and coding questions. I could do the coding okayish but could not answer few java related questions. Interviewer was helpful. I couldnt clearly tell the approach to the interviewer.