Bloomberg Senior Software Developer interview questions

Went with a recruiting firm and got a phone interview in 2 weeks. On the day of the interview got a call 5 mins late than the scheduled time. Interviewer seemed to be in a great hurry. He dived into Hacker rank session with out any questions on my expertise or technical questions.

It was my first phone interview and from beginning of the interview I was incomfortable. I noted various instances when the tone of interviewer was not welcome. "oh your resume says you know X, so you must know Y,isnt it?" I solved first question. On second question about graph I was having difficulty to get the right solution. But the interviewer kept typing continuously while I worked almost the entire time.It was distracting. For the first question I tried to talk and explain my solution but felt the interviewer was not interested in making the conversation.