public static void PartTwo()
{
Console.WriteLine("Day four - Part Two");
List <List <string> > lines = PuzzleInputHelper.GetInputLinesBatched("DayFour.txt", String.Empty);
List <Passport> passports = lines.Select(Passport.FromLines).ToList();
Console.WriteLine($"There are only {passports.Count(p => p.IsDataValid())} data-valid passports");
Console.WriteLine("Day four - End of part Two");
}
public static void PartTwo()
{
Console.WriteLine("Day six - Part Two");
List <List <string> > lines = PuzzleInputHelper.GetInputLinesBatched("DaySix.txt", String.Empty);
List <string> uniqueAnswers = new List <string>();
lines.Aggregate(uniqueAnswers, (ua, answers) => {
ua.Add(String.Join("", String.Join("", answers).Distinct()));
return(ua);
});
int sum = lines.Zip(uniqueAnswers, (answers, ua) => ua.Count(c => String.Join("", answers).Count(a => a == c) == answers.Count)).Sum();
Console.WriteLine($"Sum of all groups count is {sum}");
Console.WriteLine("Day six - End of Part Two");
}
public static void PartOne()
{
Console.WriteLine("Day six - Part One");
List <List <string> > lines = PuzzleInputHelper.GetInputLinesBatched("DaySix.txt", String.Empty);
List <string> uniqueAnswers = new List <string>();
lines.Aggregate(uniqueAnswers, (ua, answers) => {
ua.Add(String.Join("", String.Join("", answers).Distinct()));
return(ua);
});
int sumOfUniqueAnswers = uniqueAnswers.Sum(ua => ua.Length);
Console.WriteLine($"Unique answers for first group is {uniqueAnswers[0]}");
Console.WriteLine($"Sum of all groups count is {sumOfUniqueAnswers}");
Console.WriteLine("Day six - End of part One");
}