Skellam AI Software Development Engineer II interview questions

First round was DS algo round.Interviewer was overloaded so the interview was delayed.Then he asked questions from array and I was able to able the answer with the optimal solution and second question was also from array and I was able to answer that question also and was pretty much sure about the clearing the round but not get selected.I am not so sure what they are expecting and what better can be done from my side.Totally ambiguous environment and advice everyone to not to waste the time for their hiring process because they are itself not sure what they are expecting .Totally fraud and wastage of time.