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Discussion on: Advent of Code 2019 Solution Megathread - Day 4: Secure Container

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Replies for: here is my python solution (basically a one-liner): part1: input = [int(i) for i in open('input.txt', 'r').read().split('-')] res = sum([sum([s[...

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auerbachstefan •

a bit shorter:

i = [int(x) for x in open('input.txt', 'r').read().split('-')]
res = sum( [ s == ''.join(sorted(s)) and len(set(s))<=5
    for s in [str(c) for c in range(i[0], i[1] + 1)]])
print(res)

i = [int(x) for x in open('input.txt', 'r').read().split('-')]
res = sum([s == ''.join(sorted(s)) and 2 in [s.count(c) for c in s]
    for s in [str(c) for c in range(i[0], i[1] + 1)]])
print(res)