Capital One Data Science interview questions

The HR screening call, pretty informal, then Hackerrank coding questions, all very easy and straight-forward. After that, the technical phone interview, which is awful. The manager on the other end of the phone sounded very intense, unfriendly at all, and failed to clarify questions effectively--basically just repeated questions again and again without any helpful hints. I ended up with a feeling that even if I was given an offer, I would not want to work for him. The best part of this interview process was the HR, very friendly and helpful.