22 lines
507 B
Python
22 lines
507 B
Python
from collections import defaultdict, deque
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def day9(players, last):
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marbles = deque([0])
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player = 1
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scores = defaultdict(lambda: 0)
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for m in range(1, last+1):
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if m % 23 == 0:
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marbles.rotate(7)
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scores[player] += m + marbles.pop()
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marbles.rotate(-1)
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else:
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marbles.rotate(-1)
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marbles.append(m)
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player = (player + 1) % players
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print(max(scores.values()))
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if __name__ == '__main__':
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day9(404, 71852)
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