I attended the interview at Oracle, Chennai, for the role of Applications Developer. I went through four rounds.

• The first round focused on logical questions and puzzles.
• The second round was completely based on data structures and algorithms.
• In the third round, I was given a problem to code.

The first three rounds took one complete day. I was then invited for the fourth round.

The fourth round involved a video conference with a senior team member. He asked one programming problem and HR-related questions.

You are given an array of integers. Find the subarray with the maximum size that sums to a target number.

Given an m*n matrix, you have to rotate it by 90 degrees in place.

Given a string representing the date (DD/MM/YYYY) and an integer representing the number of days, find the resultant date after adding the number of days to the given date. You have to consider whether the year is a leap year or not.

Given a string, find the substring with the maximum length which is a palindrome.