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Arik Chakma 274082fd77 feat: clean roadmap content and sync scripts (#10181) 
* refactor: clean to roadmap content

* refactor: move shared helpers into scripts/lib
2026-07-28 05:45:17 +06:00

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Word Search

Given a 2D grid of characters and a word, determine if the word exists in the grid by following adjacent cells. You do DFS from each cell that matches the first character, marking visited cells to avoid reuse in the current path. This problem teaches you backtracking on a 2D grid, where you must undo your visited marks when a path fails.

Visit the following resources to learn more:

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