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23 lines
516 B
23 lines
516 B
lines = open("input.txt", "r").read().splitlines()
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drops = set()
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for line in lines:
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drop = line.split(",")
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drop = (int(drop[0]), int(drop[1]), int(drop[2]))
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drops.add(drop)
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def check_adjacent(drop, drops):
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pos = ((0, 0, 1), (0, 1, 0), (1, 0, 0), (0, 0, -1), (0, -1, 0), (-1, 0, 0))
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sides = 6
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for p in pos:
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if (drop[0] + p[0], drop[1] + p[1], drop[2] + p[2]) in drops:
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sides -= 1
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return sides
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s = 0
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for drop in drops:
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s += check_adjacent(drop, drops)
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print(s)
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