40 lines
1.3 KiB
Python
40 lines
1.3 KiB
Python
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with open('input04', 'r') as file:
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lines = [l.replace('\n', ' ') for l in file.read().split('\n\n')]
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passports = [{k:v for k,_,v in [token.partition(':') for token in line.split()]} for line in lines]
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req_keys = {'byr', 'iyr', 'eyr', 'hgt', 'hcl', 'ecl', 'pid'}
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valid_passports = [p for p in passports if req_keys.issubset(p.keys())]
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print(f'Part 1: {len(valid_passports)} valid passports')
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# Absolutely nothing cute about this validation function
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valid_ecl = {'amb', 'blu', 'brn', 'gry', 'grn', 'hzl', 'oth'}
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valid_hgt = {'cm': lambda i: (150<=i<=193), 'in': lambda i: (59<=i<=76)}
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def validate_pp(pp):
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try:
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if not (1920 <= int(pp['byr']) <= 2002):
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return False
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if not (2010 <= int(pp['iyr']) <= 2020):
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return False
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if not (2020 <= int(pp['eyr']) <= 2030):
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return False
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if not valid_hgt[pp['hgt'][-2:]](int(pp['hgt'][:-2])):
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return False
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hcl = pp['hcl']
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if hcl[0] != '#':
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return False
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for c in hcl[1:]:
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if c not in {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}:
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return False
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if pp['ecl'] not in valid_ecl:
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return False
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if len(pp['pid'])!=9:
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return False
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int(pp['pid'])
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return True
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except:
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#raise
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return False
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print(f'Part 2: {[validate_pp(pp) for pp in valid_passports].count(True)} valid passports')
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