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Leetcode Problem 794. Valid Tic-Tac-Toe State

794. Valid Tic-Tac-Toe State

Leetcode Solutions

Validating Tic-Tac-Toe Board State

  1. Count the number of 'X's and 'O's on the board.
  2. Check if the number of 'O's is greater than the number of 'X's, which is invalid.
  3. Check if the number of 'X's is more than one greater than the number of 'O's, which is invalid.
  4. Check for a winning condition for 'X' and 'O'.
  5. If both 'X' and 'O' have winning conditions, the board is invalid.
  6. If 'X' has a winning condition, ensure 'X' has one more move than 'O'.
  7. If 'O' has a winning condition, ensure 'X' and 'O' have the same number of moves.
  8. If none of the above conditions are violated, the board is valid.
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Alternative Approach: Brute Force Check

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