2020/Day06.cs

@@ -1,92 +0,0 @@
-using System;
-using static System.Console;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using Xunit;
-
-namespace AdventOfCode {
-
-  public class Day06 {
-
-    static int CountAnswers1(string[] input) {
-      int total = 0;
-      var groupAnswers = new HashSet<char>();
-      foreach (string line in input) {
-        if (line == "") {
-          total += groupAnswers.Count();
-          groupAnswers.Clear();
-          continue;
-        }
-        foreach (char c in line) {
-          groupAnswers.Add(c);
-        }
-      }
-      total += groupAnswers.Count();
-      return total;
-    }
-
-    static int CountAnswers2(string[] input) {
-      int total = 0;
-      var groupAnswers = new HashSet<char>();
-      int groupSize = 0;
-      foreach (string line in input) {
-        if (line == "") {
-          total += groupAnswers.Count();
-          groupAnswers.Clear();
-          groupSize = 0;
-          continue;
-        }
-        groupSize++;
-        if (groupSize == 1) {
-          foreach (char c in line) {
-            groupAnswers.Add(c);
-          }
-        } else {
-          foreach (char c in groupAnswers) {
-            if (!line.Contains(c)) {
-              groupAnswers.Remove(c);
-            }
-          }
-        }
-      }
-      total += groupAnswers.Count();
-      return total;
-    }
-
-    static int Part1() {
-      string[] input = File.ReadAllLines(Util.RootDir + "day06.txt");
-      return CountAnswers1(input);
-    }
-
-    static int Part2() {
-      string[] input = File.ReadAllLines(Util.RootDir + "day06.txt");
-      return CountAnswers2(input);
-    }
-
-    [Fact]
-    public static void Test() {
-      string[] example =
-@"abc
-
-a
-b
-c
-
-ab
-ac
-
-a
-a
-a
-a
-
-b".Split('\n');
-      Assert.Equal(11, CountAnswers1(example));
-      Assert.Equal(6, CountAnswers2(example));
-
-      Assert.Equal(6947, Part1());
-      Assert.Equal(3398, Part2());
-    }
-  }
-}

2020/Program.cs

@@ -19,7 +19,7 @@ namespace AdventOfCode {
 
   public class Program {
     static void Main(string[] args) {
-      Day06.Test();
+      Day05.Test();
     }
   }
 }