Life360 Software Engineer II, IOS interview questions

First phone call from Manager, explained details about company, position and environment answered all my questions patiently. Next call technical screening using CoderPad, question was about how to solve Parking lot system problem, try to implement functions in view model class. Interviewers are helpful even though I was very slow. I know mistakes I did so feedback is negative as accepted. Did not waste time to send feedback. Try to follow best practices & be quick thinking loud towards solutions