Detect robot state after movements
Company: Roblox
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: Medium
Interview Round: Onsite
##### Question
Implement an algorithm to determine whether a robot following a given set of movement instructions ends in a valid recognized state (variant of a robot-recognition problem); optimize to pass all edge-case tests.
Quick Answer: This question evaluates a candidate's ability to model state transitions and simulate movement instructions, assessing algorithm design, correctness reasoning, and robustness against edge-case inputs.