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CoursesTrees & GraphsGrid Traversal

01 Matrix

Multi-source BFS: drop every 0 into the queue at distance 0 and let one wave label the whole grid.

Complete codeDebugMultiple choiceTrace6 exercises, 7 min
AlgoFox Pro

Trees & Graphs is part of AlgoFox Pro

You can read the whole course outline here. The exercises are in the app, along with your streak, your mistake review, and the progress that carries across your devices.

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