Implement power, reduce string, parse tree, debug maze
Company: Meta
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: medium
Interview Round: Onsite
Quick Answer: This multi-part question evaluates numerical algorithms (fast exponentiation), string-processing and reduction logic, recursive parsing and tree construction, and graph search with debugging and constraint handling, covering algorithmic efficiency, parsing accuracy, state management, and edge-case reasoning.