ByteDance interview questions

3 rounds of technical interview in total. Online interview through video. Some questions require writing code that compiles and passes some test cases on an online coding platform. In general the interview is difficult and focuses on algorithm and coding

First round interview. Online. The interviewer was nice. Questions were not hard but needed a solid understanding of Java. Lasted for around 1 hour. First half was conversational, the second half were coding problems. The interviewer gave hint during the implementation. Also needed to speak out how the code was structured.