Top ML Engineer Interview Questions at Meta and Baidu
Machine Learning (ML) engineering interviews at top tech companies like Meta, Amazon, Baidu, and Atlassian are known for their challenging and practical questions. These companies assess not only algorithmic and coding skills but also a deep understanding of systems, data structures, and real-world ML system design.
Suppose you have a matrix of numbers. How can you efficiently compute the sum of any rectangle (i.e., a range defined by [row_start, row_end, col_start, col_end]) of those numbers? How would you code this?
The naive method is to iterate over all cells in the specified rectangle and sum them. Given a matrix of size m x n and a query rectangle of size (row_end - row_start + 1) x (col_end - col_start + 1), the time complexity per query is O(R x C), where R and C are the number of rows and columns in the query.
