Got mail stated that face to face interview but had technical written test, qualified by solving both programming questions, second one was to find out max element in a stack at any given time and I wrote a function which takes given stack and find the max in O(n), but this interviewer which is for Bangalore location, he was in so much attitude that already decided that my solution is wrong ,lol, i proved my solution is correct and I told there are a 3 ways to solve this problem,he knew only one solution and in the last he wrote his solution which made me laugh, because that solution was not giving max at any given point of time,but he was so rude and frustrated that he was not ready to accept his mistakes in his solution,I already decided I won't work in a company like this where people give wrong solutions with so much confidence, it was overall bad experience ,