Available question text
Simulate a robot moving on a 2D grid with obstacles (and/or a sequence of movement/rotation commands) and compute how many unique grid cells it cleans. The core challenge is correctly handling boundaries, obstacles and revisited cells efficiently—typically via simulation or graph traversal with a visited set.
Related questions
Continue with questions that share topics or the same question type.
Sources · 1 reference
These records explain where the question appears. A company tag or candidate report does not guarantee a future interview question.
Hello Interview · 1 record
No company association
Leetcode 2061. Number of Spaces Cleaning Robot Cleaned
Reported date not specified · 0 source reports
Source snapshot: Nov 12, 2026
View source