Gave an interview yesterday but not get any update yet even though solved each problems

Hi guys, yesterday I have given an interview, there interview asked me basically two dsa questions and I had solved them both and gave him correct time and space complexity, even though in first question I have solved it but interviewer was expecting better time complexity, so after taking a small hint I was able to solve completely and on another question I solved it without any hints. But still I haven't received a call yet. It's really demotivating and I literally feel sad now. I tried to call HR but she is not responding. So can I assume I haven't cleared it right ?