public void Step1()
{
var inputList = _inputFiles.SplitString(_inputFiles.ReadInputFileForDay(4, false));
var passports = new List <Passport>();
Passport passport = null;
foreach (var inputLine in inputList)
{
if (string.IsNullOrEmpty(inputLine))
{
passports.Add(passport);
passport = null;
continue;
}
if (passport is null)
{
passport = new Passport();
}
foreach (var inputBlock in inputLine.Split(" "))
{
var inputBlockSplit = inputBlock.Split(":");
switch (inputBlockSplit[0])
{
case "byr": passport.BirthYear = inputBlockSplit[1];
break;
case "iyr": passport.IssueYear = inputBlockSplit[1];
break;
case "eyr": passport.ExpirationYear = inputBlockSplit[1];
break;
case "hgt": passport.Height = inputBlockSplit[1];
break;
case "hcl": passport.HairColour = inputBlockSplit[1];
break;
case "ecl": passport.EyeColour = inputBlockSplit[1];
break;
case "pid": passport.PassportID = inputBlockSplit[1];
break;
case "cid": passport.CountryID = inputBlockSplit[1];
break;
}
}
}
passports.Add(passport); //End Of File...
var validPassportCount = 0;
foreach (var passportToValidate in passports)
{
if (passportToValidate.isValid(true))
{
validPassportCount++;
}
}
Console.WriteLine($"Day 4a result: {validPassportCount} passports valid.");
}
// Count the number of valid passports (have all required feilds and those fields match some validationc criteria). public string PartTwo(string[] lines) => Passport.FromBlobsFile(lines).Count(passport => passport.HasRequiredFields && passport.HasValidFields).ToString();