Compute the Minimum Number of Meeting Rooms
Company: Walmart Labs
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: medium
Interview Round: Technical Screen
Overview: Compute the minimum rooms required for half-open meeting intervals, allowing a new meeting to begin exactly as another ends. This algorithm question tests event tie semantics, overlap accounting, empty input, nonmutation, asymptotic performance, and comparison of sweep-based and active-end-time approaches.