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- import argparse
- import functools
- from typing import NamedTuple, List
- parser = argparse.ArgumentParser()
- parser.add_argument("ifile", type=argparse.FileType('r'))
- args = parser.parse_args()
- class Pairing(NamedTuple):
- signals: List[str]
- digits: List[str]
- lines = [Pairing(line.split('|')[0].split(' '), line.split('|')[1].strip().split(' ')) for line in args.ifile.readlines()]
- print(sum([functools.reduce(lambda acc, val: acc + 1 if len(val) in (2, 3, 4, 7) else acc,
- pairing.digits, 0) for pairing in lines]))
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