Zeotap Backend Software Engineer interview questions

Probably one of the worst experiences. 1. Interviewer doesn't have the basic manners to introduce himself 2. Jumps straight to a algo problem in less than 30 seconds. 3. When asked to give a real world use case where this problem is applicable, he could not come up with any scenario. 4. Solved it anyways and moved to second question at the 55th minute of a 60 minute interview. Already told him that I have a hard stop 5. he didn't care. I still went overtime by 10 minutes and gave a DP solution but he wanted tabulation approach and didn't have the courtesy to check on time. 6. He rejects me.