Add day 6

Days/Day6.cs

@@ -0,0 +1,73 @@
+using Spectre.Console;
+
+namespace AdventOfCode.Days;
+
+public class Day6 : Day
+{
+    public override int Number => 6;
+    public override string Name => "Tuning Trouble";
+    public override void RunPart1()
+    {
+        int position = 0;
+
+        // Store the last 4 characters in a stream (kind of like a sliding window)
+        var charStream = new Queue<char>();
+        charStream.Enqueue(Input[0]);
+        charStream.Enqueue(Input[1]);
+        charStream.Enqueue(Input[2]);
+
+        for (int i = 3; i < Input.Length; i++)
+        {
+            charStream.Enqueue(Input[i]);
+
+            // Check if all 4 chars are different
+            if (charStream.ToHashSet().Count == charStream.Count)
+            {
+                position = i + 1;
+                break;
+            }
+
+            charStream.Dequeue();
+        }
+
+        AnsiConsole.MarkupLine($"[green]Position of start-of-packet marker is: [yellow]{position}[/][/]");
+    }
+
+    public override void RunPart2()
+    {
+        const int length = 14;
+        int position = 0;
+
+        // Store the last 14 characters in a stream (kind of like a sliding window)
+        var charStream = new Queue<char>();
+        for (int i = 0; i < length - 1; i++)
+        {
+            charStream.Enqueue(Input[i]);
+        }
+
+        for (int i = length - 1; i < Input.Length; i++)
+        {
+            charStream.Enqueue(Input[i]);
+            
+            // Check if all 14 chars are different
+            if (charStream.ToHashSet().Count == charStream.Count)
+            {
+                position = i + 1;
+                break;
+            }
+
+            charStream.Dequeue();
+        }
+
+        AnsiConsole.MarkupLine($"[green]Position of start-of-message marker is: [yellow]{position}[/][/]");
+    }
+
+    #region Input
+
+    public const string Input =
+    """
+    rgffbnnqvqhhmtmzzmmpmllcggsdswwvvwzzpptbppgngsnncwcnwcwnwgwrwrrnqnlqlccwggrcgrccjgcgwghgffjgjgrgmmsrrhchfcfdccjwwzdzcdcbcjjtfjjltlvvtstvttszsvsmmfccwcjwwzmzhhjvjpvjpppcwppdtdvtdvtvztzvzffdfqqgbgffrgrpgphhbcctssncsnncfcppvnpvnvfnfvnnfggtpplggwsggldllzvzrznncbbjpplbbrrnsrssmrsrhhmqmnqqhpqqnrqnrrtrnnrwrwhhpjhphlhvvgbgzztqtvvmssdshhqnhnjjvhjhqqbrqrrmrlrdllvrlvlccfvcffhfssgvsswhwqqfwfwhhcffjmmjrrbgrgjgrrvsrvvwmwsmmszzvmzvmmwmtthvvfbfllpjpwpwjpwpnpjpqqwtqtwwqpwqqrsqqcpqqssrgsrrjwwqmwmgwgrggmvmgmfgmffjfhjfjttcztccmtmmccnznhhcgcffmnfmmqjjhwwtccbzbhhwnhnsnmsnmnqqchhhnggbzbjzjzszsfsjfjvffnlffvrvddbhhqccdnnzwnznjnpnmppthhqddjhddqjqlqplqqjpjwppqttswsvwvfwflfplffnbfbwfwhhlhtlhtltzzmlmslmlwwgzwzrrwhhlnnrfnnmpppjpgpbbhpbhppbrppbhhzgzczqcqvqggwppcnnhnznvznzhhcpctptpjtppdhhprhrcrpcprpplrprzrnrfnrnlrlvrrfqqnnsqsqrssnrnvvvghvvbzzqppjsjnnrprwrrmqqtfqfwwrdrsddprddbdzbdbndbdjdljjrtjrrnzrzjrzzpssftfmfbflbbcpcsppwrppntnhthlthtbbsmsbmsmggpssnhnjjtsjjwssdjdwwppcbpcclmccwzzrggmgmnnwjnnqppjttvllmhhvcctptbpbdpdhdqqgggbnnqcchlhssltstllvqlvqvdvjdvvqvsvfvhfhlfftqffztzdttfvvzmvzznvnsnjjvqjvjljplpvvzlzhzghgddbbzbmbnztgthrnpsqhhdvprtpdftmqfvgjzgdvqwmvgwbczvbschqfhdvqcfnmbgmtqmlmsqcbfhshrzzbrtpgnwwtzgnjghzrlwhntprqhvshjcfvlnchccbtnswfnmpccdppqrqrhngvlwrpplbnpgzbzwtzwrsptmsmlndcfmbnqgvnqvzwpvrtfsrwfvfwdvplrfdddwcnwhzchmwfjsfvbtbrjchmgqwfvvmpzhqcbzhrcmjrzmgrtnzrcqdqdqnpwjctlhrjcphbbcvhvqnhtwjrvrbzfzfzzplshvrcchvtgtjcnhlzsttwdhcmdvrdlgsngvtzqsjrcptwwbgvfbsvgnmfhmvgqtfzbhhmdznjlsghhnlwzhvplfvlqzbrsjhdvrshjbnfqgpscbpzmnmmcsdbtwbwmsvfjwdvtctslcqfssrhczdptlrjbfzjctqrcbppcfcbqqzhhftdjchtscwgwcnpvrrjvnnwrqtrqmbgdfcpqhddnvdnmlmqcgsndwbcfvfrzsrflsnqrpmszqrdlshlcsfrmnsqmtrvjwqcllftscwrtmvcjsmrlqvdfjzgfdtswqzldqgjvhczpqrfbclnbwcjprjncvhgfmjhgfgnvfzfnvbbstgsgtspdhtfsncttlwmllbbvqftjtshfjlqtjwlvrbwmzfhdmcbhtqdzqtzmdljqprwhqwcvbtfqbpjwztgqrvlrqdwmqrqzvptsgjdqnqdfwfpjdglwgpdrcfrrzmpjmtbwwrqqcsnmphcqtthlnlzlfftrjmtjwwqrldcfjjclzrsqvltsfchfggcwbzbtpqcjfvgpwnwwqrdbdvjplgsgctdhqvttmtpmmjfcqdslhjgtdppbmzbrfbrrjncfdhlmjgdwjrmbgpcgctghbvphpgfvvfvtplqrhnjjhqntjvbsggvrvjgrwptcgqgrmjtprvhnvjsdsfqrqrrltlhvfsjsqpbwndbsnjzplcfqtfbdqdzdvnljcsmjnrmwwjzqwsjbdlclsmccbqwnlpltqhqhmthhrdjwlqwrbltghsvblqntvjqzpmmpqwrrwvhmtfqzhrmjfglwfpthhgbhdmrtprtqgqbdcfqlbbvmzmchzglmpzdvhpqchhclbcvrcmhtzqfzrplbvmdhghsttzgdjbgmmtvlqjsstgwlwchhwmflwbgljgszghvfdsngbtbcnhzmmdmsjqfbcsmgpjwjqgwqdlrgznnmhphbrzcgnqczpcbljjmhnnrmzlpqbswwcjpjqcrtdmgprpmmbprwlmpzcmwlnbzqjsgftrncvmjmjwvqgszsrmrczhjnwlghgndhbthwlhfbncrwqfgnshrmdfhwmfvllhvbmmllwfbgrnrttpzffzvcfjfbrmdqfcfrdqsltpbbttnqnbncfhwghfbgwrltbhwmmlpczsvvdnwhchgfplnjsttsqvsznwvlwzgfnhfrrgplsfwrwnbfhblwtjpldjmzrglhppgsjsgzssbbgrrbdmpwhgjjmlfnpdbvtntcwrvltgfnrgwttvvjhqljjvvnmztwgzcclgbjnjspzwnpgtgvhhhqbzrnvmdcljcdncvpnpdhrhqwvlhllbsrmjbzlgczwjsrvqrqfqmtjrnpbtdhsrfbhrgtgnrmlgcwcmrvrdfcqbfcqczjchgrjpzqfqqmcpvnvbrssfrfsrjmlngplqqsnclgvpfhjbzdppjftlgbmcgdbrvqrclvtdnzhhcmzlrdrgbrqrlvfcnvznnqwswvhdpbbjmsqzcrmjngzmdftjzsjvgfdtcvdwhnwwjlcgcmflzzpzpgzrvmptbjgrdjbzscrglhcjppdjdshnvvbsnnddtbwsdrpnbnlrtppcrzbbjrfzhbwgmjqtmgjvmrjgfdndlmqvhgwprsjnhcmrnfdfdzggjjzcccnsnwwbjzmsfjjfhclptfcwqjhnphpwzszjmsrtnbqpqsvcfcvrrgclwlbrqngdcdlzrdfpvbgtznjzdvjngrgswhjnrpgswtqflpgvnpbsvcrtgtzcbhdjpbjwnpdzcmprtzlppbqvpzrrlbssmwhhvqqpmwggnzwcfdnzccjrrncnvjqgbpstctwpqvhdsbcsjrpbzbdlwwvjngtbnvpthppglgsnrbwnvpzldhsgwqhclgwrdsvcfdclvdsbrhcfnbgrtqswstnjfmfrdgphpvgjfqzcwnpcghdhtflgdnhhnnnwrpnmppszgqdcqjqpnccfsqjsmwtqvzwfqvtwtthwswmcqqcqjwcgwgzgmnpzbfpzrqbvqhbhtsvvbppbmqzfnsmwppzvsctgcncztsqdfhnlwjjtvwcchvnphwpnpzqsjhlrcmnbthtqlfclnsfdtpwfzljdpfszvhgzdpzhbjtphbfbmwgfrfplntfqhgpbjzghmblzzhdcbptngqwrtfmvtbhphpvdwpswbscrwzhnvqfwlbwwqqgstgmbqlllspbhbpjmmrfhmjwzdnsdwmpvlrspgzmdjwqwcjpbgwspsghjdvrbbsbtgwptqdvvdhbhqbdhpbzdsdwsjdbjnztdqqrdhwhtpvcbblbmjgmbpqghdsfthzjffrdvldfsnpcsmnzwzcqlnvcrcbqnfcdrfbffrvhqsbqjnnbzsqvqqdqwmsvbqvtgmnnlthpngfsljqnrdhhzpmwsnqvrgdnvlbgnndfcpjfgmzqssvnnrwbmslcqpnhnnwzggsjvqcsqpfzjcmcppntmsdtfggzdncqbfjsqvbzgnnlsdbgjqffsmvnbqlsrjwdmcjbrsrpchnnhdtlcdhfdltmlvtrwjpzphtbhzzrlrwbbhhpntgbcfmphnbrjdhrhvmvhfglrncngjdsvbfrqtqzsgvlzjqzcqnwdcfgvnpsqpphwfsdvpgnchjnnjhsqgvlqcvhzzzcrsqcvrbsbjbdbgddlbb
+    """;
+
+    #endregion
+}

Program.cs

@@ -9,7 +9,7 @@ var days = Assembly.GetAssembly(typeof(Day))!.GetTypes()
 
 var select = new SelectionPrompt<Day>()
     .Title("[cyan]Select a [yellow]day[/] to run:[/]")
-    .AddChoices(days);
+    .AddChoices(days.Reverse());
 
 var selectedDay = AnsiConsole.Prompt(select);