static void Main(string[] args)
{
var parser = new MultiLineParser <Passport>(() => new Passport(), UpdatePassportWithValues);
using var inputProvider = new InputProvider <Passport?>("Input.txt", parser.AddLine)
{
EndAtEmptyLine = false
};
var inputs = inputProvider.ToList();
var passports = inputs.Where(w => w != null).Cast <Passport>().ToList();
Console.WriteLine($"Number of passports: {passports.Count}");
// Part 1
Console.WriteLine($"Part1: Number of valid passports: {passports.Count(w => w.IsValid(false))}");
Console.WriteLine($"Part2: Number of valid passports: {passports.Count(w => w.IsValid(true))}");
}
static void Main(string[] args)
{
var parser = new MultiLineParser <Group>(() => new Group(), (g, v) => g.Add(v));
using var inputProvider = new InputProvider <Group?>("Input.txt", parser.AddLine)
{
EndAtEmptyLine = false
};
var groups = inputProvider.Where(w => w != null).Cast <Group>().ToList();
var sumUnion = groups.Sum(w => w.CountOfGroupUnion);
Console.WriteLine($"Part 1: Sum of groups unions: {sumUnion}");
var sumIntersection = groups.Sum(w => w.CountOfGroupIntersection);
Console.WriteLine($"Part 2: Sum of groups intersections: {sumIntersection}");
}
static void Main(string[] args)
{
var parser = new MultiLineParser <ImageTile>(() => new ImageTile(), (tile, row) => tile.AddRow(row));
using var inputProvider = new InputProvider <ImageTile?>("Input.txt", parser.AddLine)
{
EndAtEmptyLine = false
};
var inputs = inputProvider.ToList();
var tiles = inputs.Where(w => w != null).Cast <ImageTile>().ToList();
var neighbourhood = FindNeighbouringTiles(tiles);
var cornerTiles = neighbourhood.Where(w => w.Value.Count == 2).Select(w => w.Key).ToList();
long factorOfCornerTileIds = 1;
foreach (var cornerTile in cornerTiles)
{
factorOfCornerTileIds *= cornerTile.Id;
}
Console.WriteLine($"Part 1: {factorOfCornerTileIds}");
var grid = AssembleTilesToImage(cornerTiles[0], tiles, neighbourhood);
if (grid == null)
{
throw new Exception();
}
var sideLength = (int)Math.Sqrt(tiles.Count);
var fullImage = new Image(sideLength, cornerTiles[0]);
for (int x = 0; x < sideLength; x++)
{
for (int y = 0; y < sideLength; y++)
{
fullImage.Insert(grid[(x, y)], x, y);
