// Correct Answer = 109
protected override void SolvePartTwo()
{
var validator = new PassportValidator();
validator.ClearRequiredFields();
// Birthday - four digits; at least 1920 and at most 2002.
validator.AddRequiredField("byr", "^(19[2-9]\\d)|(200[012])$");
// Issue Year - four digits; at least 2010 and at most 2020.
validator.AddRequiredField("iyr", "^20(1\\d|20)$");
// Expiry Year - four digits; at least 2020 and at most 2030.
validator.AddRequiredField("eyr", "^20(2\\d|30)$");
// Height - a number followed by either cm or in:
// If cm, the number must be at least 150 and at most 193.
// If in, the number must be at least 59 and at most 76.
var pattern_cm = "1([5-8]\\d|9[0-3])cm";
var pattern_in = "(59|6\\d|7[0-6])in";
validator.AddRequiredField("hgt", $"^({pattern_cm})|({pattern_in})$");
// Hair Colour - a # followed by exactly six characters 0-9 or a-f.
validator.AddRequiredField("hcl", "^#[0-9a-f]{6}$");
// Eye Colour - Exactly one of amb blu brn gry grn hzl oth
validator.AddRequiredField("ecl", "^amb|blu|brn|gry|grn|hzl|oth$");
// Passport ID - a nine-digit number, including leading zeroes.
validator.AddRequiredField("pid", "^\\d{9}$");
// Country - Optional
validator.SetOptionalFields("cid");
var nrValid = 0;
foreach (var p in _passports)
{
if (validator.IsValid(p))
{
nrValid++;
}
}
Console.WriteLine($"Answer: {nrValid} valid passports");
}
// Correct Answer = 182
protected override void SolvePartOne()
{
var validator = new PassportValidator();
validator.SetRequiredFields("byr", "iyr", "eyr", "hgt", "hcl", "ecl", "pid");
validator.SetOptionalFields("cid");
var nrValid = 0;
foreach (var p in _passports)
{
if (validator.IsValid(p))
{
nrValid++;
}
}
Console.WriteLine($"Answer: {nrValid} valid passports");
}