The process took 1 day. I interviewed at CaaStle (New Delhi) in Apr 2024
Interview
The interview process was well-organized and flowed smoothly. The interviewer was professional and asked a series of technical questions, primarily focusing on data structures like arrays and stacks. These questions tested both theoretical understanding and practical problem-solving skills. To prepare effectively, it's advisable to practice a variety of problems, particularly those involving arrays and stacks, on platforms like LeetCode. While the questions were manageable, having a solid grasp of the fundamentals and some experience with common interview problems will greatly increase your confidence and chances of success. Overall, with adequate preparation, the interview can be navigated successfully.
Interview questions [1]
Question 1
Given an m x n 2D binary grid grid which represents a map of '1's (land) and '0's (water), return the number of islands.
An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. You may assume all four edges of the grid are all surrounded by water.