The interview had three rounds. The first, second, and third rounds followed the same pattern. The first 15 minutes were dedicated to LP (leadership principles) questions, and the rest of the time was for LC (LeetCode) coding questions. These were medium-level LeetCode questions. I would advise spending a lot of time solving BFS and DFS questions and understanding BFS and DFS in every way possible. Study hashmaps as well. Do the NeetCode 150 questions.

Given an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i]. This should be done without using division and in O(n) time.