aoc 1+2

www/statics/aoc/2018/03_solution-2.linq

@@ -0,0 +1,22 @@
+<Query Kind="Expression" />
+
+File
+	.ReadAllLines(Path.Combine(Path.GetDirectoryName(Util.CurrentQueryPath), @"03_input.txt"))
+	.Where(l => !string.IsNullOrWhiteSpace(l))
+	.Select(l => new
+	{
+		ID = int.Parse(l.Substring(1).Split(' ')[0]),
+		X = int.Parse(l.Split('@')[1].Split(':')[0].Split(',')[0].Trim()),
+		Y = int.Parse(l.Split('@')[1].Split(':')[0].Split(',')[1].Trim()),
+		W = int.Parse(l.Split('@')[1].Split(':')[1].Split('x')[0].Trim()),
+		H = int.Parse(l.Split('@')[1].Split(':')[1].Split('x')[1].Trim()),
+	})
+	.SelectMany(l => Enumerable.Range(0, l.W).SelectMany(wx => Enumerable.Range(0, l.H).Select(hy => new { Coord = (l.X + wx, l.Y + hy), Source = l })))
+	.GroupBy(p => p.Coord)
+	.SelectMany(p => p.Select(q => new { Source = q.Source, Count = p.Count() }))
+	.GroupBy(p => p.Source.ID)
+	.Select(p => new { Source = p.First().Source, CountSum = p.Sum(q => q.Count) })
+	.Where(p => p.CountSum == p.Source.W * p.Source.H)
+	.Single()
+	.Source
+	.ID