37 lines
944 B
Python
37 lines
944 B
Python
import fileinput
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import math
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from pprint import pprint
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from itertools import chain, combinations, count, groupby
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import re
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RE = re.compile(r"[#\?]")
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def powerset(iterable):
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"powerset([1,2,3]) --> () (1,) (2,) (3,) (1,2) (1,3) (2,3) (1,2,3)"
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s = list(iterable)
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return chain.from_iterable(combinations(s, r) for r in range(len(s) + 1))
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def main():
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(part1, part2) = (0, 0)
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inp = fileinput.input()
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for line in inp:
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(springs, groups) = line.split()
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groups = [int(g) for g in groups.split(",")]
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unknowns = [x for (x, c) in enumerate(springs) if c == "?"]
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springs_ = springs.replace("?", ".")
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for xs in powerset(unknowns):
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h = "".join("#" if i in xs else c for (i, c) in enumerate(springs_))
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match = [len(g) for g in RE.findall(h)]
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if match == groups:
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part1 += 1
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print(part1, part2)
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if __name__ == "__main__":
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main()
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