31 lines
567 B
Python
31 lines
567 B
Python
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def read_file():
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with open("input.txt","r") as f:
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return f.read().split('\n')
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def id(seat):
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"""
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Translate to binary.
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"""
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return int(seat.translate(str.maketrans('FBLR', '0101')), 2)
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def part1(seats):
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"""
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Find the highest seat ID.
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"""
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ids = sorted(map(id, seats))
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return max(ids)
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def part2(seats):
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"""
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Find your seat ID, which is missing.
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"""
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ids = sorted(map(id, seats))
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return sum( range(min(ids), max(ids)+1) ) - sum(ids)
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def main():
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seats = read_file()
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print(f'{part1(seats)=}')
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print(f'{part2(seats)=}')
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if __name__ == "__main__":
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main()
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