public static void Run()
{
var boxIds = File.ReadAllLines(@"Day2\Input.txt");
const string ALPHABET = "abcdefghijklmnopqrstuvwxyz";
int boxesWithLetterTwice = 0;
int boxesWithLetterThrice = 0;
foreach (var boxId in boxIds)
{
if (ALPHABET.Any(x => boxId.Count(c => c == x) == 2))
{
boxesWithLetterTwice += 1;
}
if (ALPHABET.Any(x => boxId.Count(c => c == x) == 3))
{
boxesWithLetterThrice += 1;
}
}
Console.WriteLine($"Part 1: {boxesWithLetterTwice * boxesWithLetterThrice}");
foreach (var box1 in boxIds)
{
foreach (var box2 in boxIds)
{
if (box1 == box2)
{
continue;
}
var resultBuilder = new StringBuilder();
for (int i = 0; i < box1.Length; i++)
{
if (box1[i] == box2[i])
{
resultBuilder.Append(box1[i]);
}
}
var result = resultBuilder.ToString();
if (result.Length + 1 == box1.Length)
{
Console.WriteLine($"Part 2: {result}");
return;
}
}
}
}
