forked from thib8956/advent-of-code-2k20
48 lines
1.4 KiB
Python
48 lines
1.4 KiB
Python
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#! /usr/bin/env python3
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import re
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def main(inp):
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inp = open(inp).read().split('\n\n')
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valid_passeports = 0
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for l in inp:
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l = re.split('[\n\s]', l)
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passeport = dict(p.split(':') for p in l)
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if check_passeport(passeport):
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valid_passeports += 1
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print("Valid passeports ", valid_passeports)
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def check_passeport(passeport):
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fields = [
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('byr', lambda v: 1920 <= int(v) <= 2002), # (Birth Year)
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('iyr', lambda v: 2010 <= int(v) <= 2020), # (Issue Year)
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('eyr', lambda v: 2020 <= int(v) <= 2030), # (Expiration Year)
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('hgt', validate_height), # (Height)
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('hcl', lambda v: re.search("#[0-9a-f]{6}", v)), # (Hair Color)
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('ecl', lambda v: v in ('amb', 'blu', 'brn', 'gry', 'grn', 'hzl', 'oth')), # (Eye Color)
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('pid', lambda v: len(v) == 9 and v.isdecimal()), # (Passport ID)
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#'cid' # Country id, ignored
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]
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for field, validator in fields:
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value = passeport.get(field)
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if value is None:
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return False
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elif not validator(value):
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return False
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return True
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def validate_height(v):
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unit = v[-2:]
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height = int(v[:-2])
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if unit == 'cm':
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return 150 <= height <= 193
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if unit == 'in':
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return 59 <= height <= 76
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return False
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if __name__ == "__main__":
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main('input.txt')
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