Interviewer was not able to explain the question properly and he pick the leetcode hard question as he didnt like my face ;). He was silent all the time and not engaged. I have to wake him up many times. I would definitely will not work for this company. I didnt waited for feedback email and thought to share feedback here that can be useful for new candidates. Please dont waste candidate time and ask Interviewer to prepare well. If you are asking very hard questions to complete in 45 minutes then have engaged conversations and also provide some hints. And also explain questions clearly.