if u dont have much time then dont apply here worst interview process it takes a month bcs interviewer was on vacation and then they gave a porject to complete it on 2 days DSA questions only they dont care about ur skills they just want DSA Skills, if u want select candidates according to DSA then dont waste candidate time to give dumb project assignment, why someone use algorithm to store and get data from firebase, bcs firebase helps to get data any best way