def check_winner(state: GameState) -> int or None:
global winner
if _check_winner(state):
return winner
elif len(state.get_possible_moves()) == 0:
winner = TIE
return TIE
return NO_PLAYER
def check_winner(state: GameState) -> int or None:
global winner
if _check_winner(state):
return winner
elif len(state.get_possible_moves()) == 0:
winner = TIE
return TIE
return NO_PLAYER
