Round 1: 3 LP questions -> expected very in depth answers based on my past work/projects. simple Low level design. implement few methods for the scenario given. I believe handling edge cases, choosing the right data structure, and the right class or object structure was important. These decisions simplified operations, and reduced time complexity of operations. Interviewer nudged me towards a couple of edge cases/ miss in code. expected optimal operations wrt time complexity. asked about my choice of data structure and class structure. interview overshot scheduled time by 10 mins. round 2: course schedule II (topological sort) - leetcode - worded as amazon based system. expected optimal solution. followed by 3 LP questions - simpler than round 1 and depth of answers required was also lower. interview overshot scheduled time by 5 mins.