AdventOfCode/Year2022/Day6.cs

29 lines
721 B
C#

namespace AdventOfCode.Year2022;
public class Day6
{
private static readonly string Input = File.ReadAllText("inputs/day6.txt");
public Day6()
{
Console.WriteLine($@"
Day6 Solution
Part1 Result: {GetValidMarkerIndex(4)}
Part2 Result: {GetValidMarkerIndex(14)}
=============================");
}
private static int? GetValidMarkerIndex(int size)
{
for (var i = 0; i < Input.Length - size; i++)
if (ValidateMarker(Input.Substring(i, size)))
return i + size;
return null;
}
private static bool ValidateMarker(string marker)
{
return !marker.Where((c1, i) => marker.Where((c2, j) => c1 == c2 && i != j).Any()).Any();
}
}