Tic Tac Toe TCTCTOE SOLUTION

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Tic Tac Toe TCTCTOE CodeChef

Tic-tac-toe is a game played between two players on a 3×3 grid. In a turn, a player chooses an empty cell and places their symbol on the cell. The players take alternating turns, where the player with the first turn uses the symbol X and the other player uses the symbol O. The game continues until there is a row, column, or diagonal containing three of the same symbol (X or O), and the player with that token is declared the winner. Otherwise if every cell of the grid contains a symbol and nobody won, then the game ends and it is considered a draw.

You are given a tic-tac-toe board A after a certain number of moves, consisting of symbols O, X, and underscore(_). Underscore signifies an empty cell.

Print

1: if the position is reachable, and the game has drawn or one of the players won.
2: if the position is reachable, and the game will continue for at least one more move.
3: if the position is not reachable.
Input
The first line contains an integer T, the number of test cases. Then the test cases follow.
Each test case contains 3 lines of input where each line contains a string describing the state of the game in ith row.
Output
For each test case, output in a single line 1, 2 or 3 as described in the problem.

Constraints
1≤T≤39
Aij∈{X,O,_}
Subtasks
Subtask #1 (100 points): Original Constraints

Sample Input
3
XOX
XXO
O_O
XXX
OOO

XOX
OX_
XO_
Sample Output
2
3
1
Explanation
Test Case 1: The board is reachable, and although no player can win from this position, still the game continues.

Test Case 2: There can’t be multiple winners in the game.

Test Case 3: The first player is clearly a winner with one of the diagonals.

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