JD.com Software Engineer interview questions

I got the phone interview after connecting to JD's recruiter. And there are two easy to medium leetcode questions. After the phone interview, I got the 4 round onsite interview. Each round contains at least 2 coding questions.

First round: Remote interview - technical questions with the local team (in Bay area). Second round: Remote interview - behavioral questions with HR in HQ (in Beijing). Third round: Onsite interview - behavioral questions with local HR