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Second solution in Clear category for Xs and Os Referee by yoichi
def checkio(game_result):
l = {frozenset(game_result[0]),
frozenset(game_result[1]),
frozenset(game_result[2]),
frozenset(game_result[i][0] for i in range(3)),
frozenset(game_result[i][1] for i in range(3)),
frozenset(game_result[i][2] for i in range(3)),
frozenset(game_result[i][i] for i in range(3)),
frozenset(game_result[i][2-i] for i in range(3))}
if frozenset("X") in l:
return "X"
if frozenset("O") in l:
return "O"
return "D"
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio([
"X.O",
"XX.",
"XOO"]) == "X", "Xs wins"
assert checkio([
"OO.",
"XOX",
"XOX"]) == "O", "Os wins"
assert checkio([
"OOX",
"XXO",
"OXX"]) == "D", "Draw"
assert checkio([
"O.X",
"XX.",
"XOO"]) == "X", "Xs wins again"
Jan. 23, 2015
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