Day 4

AdventOfCode/Problems/AOC2022/Day4/CampCleanup.cs

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+using AdventOfCode.Runner;
+using AdventOfCode.Runner.Attributes;
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AdventOfCode.Problems.AOC2022.Day4;
+[ProblemInfo(2022, 4, "Camp Cleanup")]
+internal class CampCleanup : Problem<int, int>
+{
+	private List<(Range a, Range b)> _pairs = new(500);
+
+	public override void LoadInput()
+	{
+		var lines = ReadInputLines("input.txt");
+		foreach (var line in lines)
+		{
+			var (a, b) = line.Split(',')
+				.Select(range => 
+					range.Split('-')
+					.Select(v => int.Parse(v))
+					.Chunk(2)
+					.Select(r => new Range(r.First(), r.Last()))
+					.First()
+				).Chunk(2).Select(pair => (pair.First(), pair.Last())).First();
+			_pairs.Add((a, b));
+		}
+	}
+
+
+	public override void CalculatePart1()
+	{
+		var total = 0;
+		foreach (var (a, b) in _pairs)
+		{
+			if (a.Contains(b) || b.Contains(a))
+				total++;
+		}
+		Part1 = total;
+	}
+
+	public override void CalculatePart2()
+	{
+		foreach (var (a, b) in _pairs)
+		{
+			if (a.OverlapsWith(b))
+				Part2++;
+		}	
+	}
+
+
+	record Range(int A, int B)
+	{
+		public bool Contains(Range other)
+		{
+			return (A <= other.A && B >= other.B);
+		}
+
+		public bool OverlapsWith(Range other)
+		{
+			return (B >= other.A && A <= other.A) || (A <= other.B && B >= other.B) || (A >= other.A && B <= other.B);
+		}
+
+		public static implicit operator Range((int a, int b) value) => new Range(value.a, value.b);
+	}
+}

AdventOfCode/Problems/AOC2022/Day4/test.txt

@@ -0,0 +1,6 @@
+2-4,6-8
+2-3,4-5
+5-7,7-9
+2-8,3-7
+6-6,4-6
+2-6,4-8