diff options
Diffstat (limited to '04/b.rb')
-rw-r--r-- | 04/b.rb | 29 |
1 files changed, 29 insertions, 0 deletions
@@ -0,0 +1,29 @@ +file = File.read('input.txt') +records = file.split "\n\n" + +fields = [ 'byr', 'iyr', 'eyr', 'hgt', 'hcl', 'ecl', 'pid' ] + +regexes = [ + /^byr:(19[2-9]\d|200[0-2])$/, + /^iyr:(201\d|2020)$/, + /^eyr:(202\d|2030)$/, + /^hgt:((1[5-8]\d|19[0-3])cm|(59|6\d|7[0-6])in)$/, + /^hcl:#[0-9a-f]{6}$/, + /^ecl:(amb|blu|brn|gry|grn|hzl|oth)$/, + /^pid:\d{9}$/ +] + +count = 0 +records.each do |record| + fields_correct = 0 + record.split.each do |entry| + if regexes.any? {|r| r.match?(entry)} + fields_correct += 1 + end + end + + if fields_correct == 7 + count += 1 + end +end +puts count |