Game Theory -2 problem

#1

below code passed sample test cases but fail on submitting. any one please figure out what’s wrong going on.

#2

n=3
piles: 1 4 3
for this input correct answer = 1, your answer = 2
how?
first player1 leaves 2 stones in pile2, piles: 1 2 3
next player2 leaves 1 stone in pile3, piles: 1 2 1
next player1 leaves 1 stone in pile2, piles: 1 1 1
now player2 cannot move hence player 1 wins

#3

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