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visit This helper method is extremely simple. It just sets the cell in the visited array at the provided row and column to true, indicating
visit
This helper method is extremely simple. It just sets the cell in the visited array at the provided row and column to true, indicating that the cell has been visited.
This is separated out into its own function so that, if we wanted to change how we track what is visited, we would only need to change this function, not any other part of the class. It also helps us follow the single Responsibility Principle.
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