Microsoft Internship interview questions

The overall process was long. Pictorially the process looks as below: Online Round -> Group Fly Round -> Technical interview 1 -> Technical Interview 2 -> Technical Interview 3 -> HR Interview Online round was conducted on CoCubes platform and had 3 questions. All were easy and could be done in the given time of 90 minutes.

Online Test, 2-3 Technical Rounds. The interviewers were very uninterested in taking interview as if they were forced to take one. I hope it isn't same for off campus process. Not only were interviewers extremely busy on their laptops during the interview but they were terrible. I wrote properties of node in tree on being asked to write. He writes 's' after 'children' making it 'childrens'. He meant there might be more than 1 child but this is seriously Horrible!