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.

Einschränkungen

board has exactly 3 rows of length 3

Beispiele

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

Erwartete Ausgabe:
expected = "X"

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

Erwartete Ausgabe:
std::string expected = "X";

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

Erwartete Ausgabe:
string expected = "X";

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

Erwartete Ausgabe:
expected = "Draw"

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

Erwartete Ausgabe:
std::string expected = "Draw";

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

Erwartete Ausgabe:
string expected = "Draw";

Referenzen

Diese Aufgabe wurde für CodeUtility angepasst. Beachte die oben genannten Vorgaben und Einschränkungen.

• GWU CS1111 Introduction to Software Development - lab sequence