Uber Software Engineer interview questions

I got two phone interviews. The first one is general as the HR mainly went through the resume. The second one is online coding. The guy can see my screen and we are talking on the phone to communicate with each other. He gave some hints in the process and the online code took about 50 minutes.

I was contacted through a recruiter, and had an initial phone screen in which an HR person told me about the interview process. However, because my schedule did not align with their immediate timeline (they said they needed someone onsite within a week) they were hesitant to give me an interview. They did eventually give me a phone screen, but the interviewer called me quite late and I wasn't able to complete the question.