Tic-Tac-Toe Winner

A 3×3 board is given as three strings of X, O and . (empty). A player wins with three of their marks in a row, column or diagonal. Boards never have two winners.

Implement tic_tac_toe_winner(board).

Input

board: Three rows of three characters each.

Output

Return "X" or "O" for the winner, "Draw" if the board is full with no winner, or "Pending" if empty cells remain and nobody has won.

Restrições

board has exactly 3 rows of length 3

Exemplos

Entrada:
board = ["XOX", ".X.", "O.X"]

Saída esperada:
expected = "X"

Entrada:
std::vector<std::string> board = {"XOX", ".X.", "O.X"};

Saída esperada:
std::string expected = "X";

Entrada:
string[] board = new string[] {"XOX", ".X.", "O.X"};

Saída esperada:
string expected = "X";

Entrada:
board = ["XOX", "XOO", "OXX"]

Saída esperada:
expected = "Draw"

Entrada:
std::vector<std::string> board = {"XOX", "XOO", "OXX"};

Saída esperada:
std::string expected = "Draw";

Entrada:
string[] board = new string[] {"XOX", "XOO", "OXX"};

Saída esperada:
string expected = "Draw";

Referências

Este desafio foi adaptado para o CodeUtility. Siga o enunciado e as restrições acima.

• GWU CS1111 Introduction to Software Development - lab sequence