Design a Tic-tac-toe game that is played between two players on anxngrid.

You may assume the following rules:

1. A move is guaranteed to be valid and is placed on an empty block.
2. Once a winning condition is reached, no more moves is allowed.
3. A player who succeeds in placing n of their marks in a horizontal, vertical, or diagonal row wins the game.

class TicTacToe {
    private int[][] matrix;


    /** Initialize your data structure here. */
    public TicTacToe(int n) {
        this.matrix = new int[n][n];
    }

    /** Player {player} makes a move at ({row}, {col}).
        @param row The row of the board.
        @param col The column of the board.
        @param player The player, can be either 1 or 2.
        @return The current winning condition, can be either:
                0: No one wins.
                1: Player 1 wins.
                2: Player 2 wins. */
    public int move(int row, int col, int player) {
        matrix[row][col] = player;
        if(checkRow(row, player))
            return player;
        if(checkCol(col, player))
            return player;
        if(checkDiag(player))
            return player;
        return 0;
    }

    private boolean checkRow(int row, int player) {
        boolean won = true;
        for(int i = 0; i < matrix.length; i++) {
            if(matrix[row][i] != player) {
                won = false;
                break;
            }
        }

        return won;
    }

    private boolean checkCol(int col, int player) {
        boolean won = true;
        for(int i = 0; i < matrix.length; i++) {
            if(matrix[i][col] != player) {
                won = false;
                break;
            }
        }

        return won;
    }

    private boolean checkDiag(int player) {
        boolean won = true;
        for(int i = 0; i < matrix.length; i++) {
            if(matrix[i][i] != player) {
                won = false;
                break;
            }
        }
        if(won)
            return won;

        won = true;
        for(int i = 0; i < matrix.length; i++) {
            if(matrix[matrix.length - 1 - i][i] != player) {
                won = false;
                break;
            }
        }

        return won;
    }
}

/**
 * Your TicTacToe object will be instantiated and called as such:
 * TicTacToe obj = new TicTacToe(n);
 * int param_1 = obj.move(row,col,player);
 */