def getState(poss):
f = lambda sgn: 'O' if sgn == 'X' else 'X'
sgn = 'O'
s0 = initState
for pos in map(int, poss):
s0 = action(s0, pos, sgn)
sgn = f(sgn)
win = chkwin(s0)
return C4State(s0, win, sgn)
def getState(state):
win = chkwin(state)
return State(state, win)
