Zynga Sr. Software Engineer interview questions

Technical Round on Algorithm. The complete process is unprofessional, Initially, the Interviewer joined the call late, No Explanation and Introduction (Not even Name), Who he is, what he is expecting from this round, He directly put the Question related to the Dynamic programming problem (with No proper explanation), I was well prepared with Dynamic programming problems and possible solutions, I approach the Solution, which is pretty clear and he asked to think solution and code in 20 mins. But he came with his solution in mind, and I feel he didn't understand the Solution proposed by me, Even the outcome was correct. Really worst experience ever. My Mistake I Applied Here. I will never apply and never recommand anyone here.