Leetcode 489. Robot Room Cleaner
Control a robot with only move/turn/clean APIs to traverse and clean every reachable cell in an unknown grid with obstacles and no global map. The challenge is to explore the entire accessible area using DFS/backtracking while tracking visited coordinates and managing orientation to avoid revisiting or getting stuck.
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Late July, 2025
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489 Robot Room Cleaner
Late May, 2025
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