Airbnb Software Engineer Backend interview questions

Telephonic round: The interview started with no introductions... open coderpad, copied a problem... "read the problem and solve it". I tried explaining the problem and how i would solve it, but the interviewer did not have the patience to listen. Anyway I started coding and there was a STL warning for which I thought I would ask a question. I got the response "I do not know C++". In all, my code compiled but the O/P was not correct... I ran out of time. As expected I got a reject. But the experience was one of the worst I had gone through in my 12 years of industry experience. The person on the other side of the phone was super rude and I completely missed the point of such an interview (they can very well give me a timed coding challenge and that way I would have done the same without the weirdness of talking over phone with a rude person). I would recommend folks to rather put your brains towards a better company (with humble people).