69 lines
1.8 KiB
Python
69 lines
1.8 KiB
Python
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import re
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from solutions import BaseSolution
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class Solution(BaseSolution):
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input_file = "11.txt"
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def __str__(self):
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return "Day 11: Corporate Policy"
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def is_valid(self, suggestion):
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if "i" in suggestion or "l" in suggestion or "o" in suggestion:
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return False
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if (
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len(
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set(
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map(
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lambda x: x[0],
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filter(lambda x: x[0] == x[1], zip(suggestion, suggestion[1:])),
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)
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)
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)
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< 2
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):
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return False
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def seq(abc):
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a, b, c = abc
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return ord(b) - ord(a) == 1 and ord(c) - ord(b) == 1
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return any(map(seq, zip(suggestion, suggestion[1:], suggestion[2:])))
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def parse_input(self, data):
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return data
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def solve(self, password):
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def tick(p):
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chars = list(p)[::-1]
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i = 0
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for c in chars:
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if c == "z":
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chars[i] = "a"
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else:
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chars[i] = chr(ord(chars[i]) + 1)
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break
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i += 1
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return "".join(chars[::-1])
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unallowed = re.compile(r"i|l|o")
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fastforward = re.search(unallowed, password)
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if fastforward:
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password = (
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password[: fastforward.start()]
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+ chr(ord(password[fastforward.start()]) + 1)
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).ljust(len(password), "a")
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while True:
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password = tick(password)
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if self.is_valid(password):
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return password
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def solve_again(self, puzzle_input):
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return self.solve(self.solve(puzzle_input))
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if __name__ == "__main__":
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solution = Solution()
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solution.show_results()
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