it was two round, first one is more of technical , where u can get question from oops, and sql, then some coding question like pattern , or prime, armstrong, then seond round will be by the ceo of company which will be based on real time question , and one or two from reasoning, like clock, or speed, it is one day interview system ,

Interviewer was not giving time to explain questions. He just wanted to prove you wrong. He asked a question, and when you started answering, he interrupted with the next question. He isn't giving you time to explain.