advent-of-code/2020/solutions/6/python/main.py

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2020-12-06 10:41:25 +00:00
from os.path import join, dirname
from itertools import product
from typing import List, Set, Tuple
from functools import reduce
data = join(dirname(__file__), '../data.txt')
with open(data) as f:
groups = f.read().strip().split('\n\n')
at_least_one: List[int] = []
everyone: List[int] = []
for group in groups:
answers: Set[str] = set()
combined = None
for answer in group.split('\n'):
answer = answer.strip()
as_set = set(list(answer))
answers = answers.union(as_set)
combined = as_set if combined == None else combined.intersection(
as_set)
at_least_one.append(len(answers))
everyone.append(len(combined))
# print(single)
# print(reduce(lambda a, b: a.intersection(b), single))
print(f'At least one person: {sum(at_least_one)}')
print(f'Everyone: {sum(everyone)}')