Onsite

A Robot Room Cleaner API Variant

MetaMachine Learning Engineer · Onsite · Oct 2025

Meta recruiters often say they won't ask hard questions, but there are still interviewers who ask hard problems or hard variants. Robot Room Cleaner API variant. Recording the core approach and the easy-to-miss details here for anyone who needs it. Problem summary The map is unknown, boundaries are unknown You can only interact with the environment through the robot API: move() turnLeft() / turnR…

Shared by a candidate · reported Oct 2025. Interview formats change; use it as a guide, not a script.