Google early career software engineer interview questions

The interview process was really simple, just 2 rounds for me. Unfortunately, I didn't move forward because of the behavioral round, I guess. Focus on Graph, Tree, Two Pointer .....

The whole process is a bit long due to the arrangement of interview scheduling. OA was easy to pass. Round 1 included a BQ interview and a technical interview. My two were back to back. The BQ interviewer was a NG too and felt very unprofessional, just reading the questions list and no feedback and communications at all. The coding question was easy, followed by a medium follow-up. I solved both and kept communicating with the interviewer all the time. I thought I behaved very well and deserved entering Round 2 at least. But received rejection after 1 week and the recruitor refused to give feedbacks. Quite disappointed!