Oracle Applications Software Developer I interview questions

I attended the interview at Oracle, Chennai for the role of Applications Developer. I attended four rounds. First round was about the logical questions and puzzles. Second round was completely based on data structures & algorithms. Third round, I was given a problem to code. The first three rounds took 1 complete day. I was invited for the fourth round. Fourth round, I had a video conference with a senior guy. He asked 1 programming problem and HR related questions.