protected List <Passport> GetValidPassports()
{
var cleanedInputs = new List <string>();
var validPassports = new List <Passport>();
var inputToString = PuzzleInput
.Aggregate((i, j) => i + " " + j)
.Split(" ");
var validFields = new string[] {
"byr:",
"iyr:",
"eyr:",
"hgt:",
"hcl:",
"ecl:",
"pid:",
};
foreach (var item in inputToString)
{
var passport = new Passport(item, validFields);
if (passport.isValid())
{
validPassports.Add(passport);
}
}
return(validPassports);
}