Microsoft Senior Developer interview questions

Applied online Resume shortlisted Got call from recruiter for a screening round. You are asked about your project and career profile. Screening cleared and you are asked to give your interview availability schedule. Gave them few dates and time. All of this process is through mail only. They sent invite for the interview but the interviewer didn't join. I sent them mail for same and was told will be rescheduled. Rescheduled 1 st technical round - asked about my profile and experience. Technical question Round 2 - Focussed more on DSA Interview gave me a live DSA coding problem. It was a bit complicated to understand as when I questioned interviewer. He wasn't able to give me a proper understanding of it. Anyhow tried to solve it but was unsuccessful. Though after some time interviewer was giving hints on to solve but still I failed.