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(); 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($"[green]Position of start-of-packet marker is: [yellow]{position}[/][/]"); } public override void RunPart2() { const int length = 14; int position = 0; // Store the last 14 characters in a stream (kind of like a sliding window) var charStream = new Queue(); for (int i = 0; i < length - 1; i++) { charStream.Enqueue(Input[i]); } for (int i = length - 1; i < Input.Length; i++) { charStream.Enqueue(Input[i]); // Check if all 14 chars are different if (charStream.ToHashSet().Count == charStream.Count) { position = i + 1; break; } charStream.Dequeue(); } AnsiConsole.MarkupLine($"[green]Position of start-of-message marker is: [yellow]{position}[/][/]"); } #region Input public const string Input = """ rgffbnnqvqhhmtmzzmmpmllcggsdswwvvwzzpptbppgngsnncwcnwcwnwgwrwrrnqnlqlccwggrcgrccjgcgwghgffjgjgrgmmsrrhchfcfdccjwwzdzcdcbcjjtfjjltlvvtstvttszsvsmmfccwcjwwzmzhhjvjpvjpppcwppdtdvtdvtvztzvzffdfqqgbgffrgrpgphhbcctssncsnncfcppvnpvnvfnfvnnfggtpplggwsggldllzvzrznncbbjpplbbrrnsrssmrsrhhmqmnqqhpqqnrqnrrtrnnrwrwhhpjhphlhvvgbgzztqtvvmssdshhqnhnjjvhjhqqbrqrrmrlrdllvrlvlccfvcffhfssgvsswhwqqfwfwhhcffjmmjrrbgrgjgrrvsrvvwmwsmmszzvmzvmmwmtthvvfbfllpjpwpwjpwpnpjpqqwtqtwwqpwqqrsqqcpqqssrgsrrjwwqmwmgwgrggmvmgmfgmffjfhjfjttcztccmtmmccnznhhcgcffmnfmmqjjhwwtccbzbhhwnhnsnmsnmnqqchhhnggbzbjzjzszsfsjfjvffnlffvrvddbhhqccdnnzwnznjnpnmppthhqddjhddqjqlqplqqjpjwppqttswsvwvfwflfplffnbfbwfwhhlhtlhtltzzmlmslmlwwgzwzrrwhhlnnrfnnmpppjpgpbbhpbhppbrppbhhzgzczqcqvqggwppcnnhnznvznzhhcpctptpjtppdhhprhrcrpcprpplrprzrnrfnrnlrlvrrfqqnnsqsqrssnrnvvvghvvbzzqppjsjnnrprwrrmqqtfqfwwrdrsddprddbdzbdbndbdjdljjrtjrrnzrzjrzzpssftfmfbflbbcpcsppwrppntnhthlthtbbsmsbmsmggpssnhnjjtsjjwssdjdwwppcbpcclmccwzzrggmgmnnwjnnqppjttvllmhhvcctptbpbdpdhdqqgggbnnqcchlhssltstllvqlvqvdvjdvvqvsvfvhfhlfftqffztzdttfvvzmvzznvnsnjjvqjvjljplpvvzlzhzghgddbbzbmbnztgthrnpsqhhdvprtpdftmqfvgjzgdvqwmvgwbczvbschqfhdvqcfnmbgmtqmlmsqcbfhshrzzbrtpgnwwtzgnjghzrlwhntprqhvshjcfvlnchccbtnswfnmpccdppqrqrhngvlwrpplbnpgzbzwtzwrsptmsmlndcfmbnqgvnqvzwpvrtfsrwfvfwdvplrfdddwcnwhzchmwfjsfvbtbrjchmgqwfvvmpzhqcbzhrcmjrzmgrtnzrcqdqdqnpwjctlhrjcphbbcvhvqnhtwjrvrbzfzfzzplshvrcchvtgtjcnhlzsttwdhcmdvrdlgsngvtzqsjrcptwwbgvfbsvgnmfhmvgqtfzbhhmdznjlsghhnlwzhvplfvlqzbrsjhdvrshjbnfqgpscbpzmnmmcsdbtwbwmsvfjwdvtctslcqfssrhczdptlrjbfzjctqrcbppcfcbqqzhhftdjchtscwgwcnpvrrjvnnwrqtrqmbgdfcpqhddnvdnmlmqcgsndwbcfvfrzsrflsnqrpmszqrdlshlcsfrmnsqmtrvjwqcllftscwrtmvcjsmrlqvdfjzgfdtswqzldqgjvhczpqrfbclnbwcjprjncvhgfmjhgfgnvfzfnvbbstgsgtspdhtfsncttlwmllbbvqftjtshfjlqtjwlvrbwmzfhdmcbhtqdzqtzmdljqprwhqwcvbtfqbpjwztgqrvlrqdwmqrqzvptsgjdqnqdfwfpjdglwgpdrcfrrzmpjmtbwwrqqcsnmphcqtthlnlzlfftrjmtjwwqrldcfjjclzrsqvltsfchfggcwbzbtpqcjfvgpwnwwqrdbdvjplgsgctdhqvttmtpmmjfcqdslhjgtdppbmzbrfbrrjncfdhlmjgdwjrmbgpcgctghbvphpgfvvfvtplqrhnjjhqntjvbsggvrvjgrwptcgqgrmjtprvhnvjsdsfqrqrrltlhvfsjsqpbwndbsnjzplcfqtfbdqdzdvnljcsmjnrmwwjzqwsjbdlclsmccbqwnlpltqhqhmthhrdjwlqwrbltghsvblqntvjqzpmmpqwrrwvhmtfqzhrmjfglwfpthhgbhdmrtprtqgqbdcfqlbbvmzmchzglmpzdvhpqchhclbcvrcmhtzqfzrplbvmdhghsttzgdjbgmmtvlqjsstgwlwchhwmflwbgljgszghvfdsngbtbcnhzmmdmsjqfbcsmgpjwjqgwqdlrgznnmhphbrzcgnqczpcbljjmhnnrmzlpqbswwcjpjqcrtdmgprpmmbprwlmpzcmwlnbzqjsgftrncvmjmjwvqgszsrmrczhjnwlghgndhbthwlhfbncrwqfgnshrmdfhwmfvllhvbmmllwfbgrnrttpzffzvcfjfbrmdqfcfrdqsltpbbttnqnbncfhwghfbgwrltbhwmmlpczsvvdnwhchgfplnjsttsqvsznwvlwzgfnhfrrgplsfwrwnbfhblwtjpldjmzrglhppgsjsgzssbbgrrbdmpwhgjjmlfnpdbvtntcwrvltgfnrgwttvvjhqljjvvnmztwgzcclgbjnjspzwnpgtgvhhhqbzrnvmdcljcdncvpnpdhrhqwvlhllbsrmjbzlgczwjsrvqrqfqmtjrnpbtdhsrfbhrgtgnrmlgcwcmrvrdfcqbfcqczjchgrjpzqfqqmcpvnvbrssfrfsrjmlngplqqsnclgvpfhjbzdppjftlgbmcgdbrvqrclvtdnzhhcmzlrdrgbrqrlvfcnvznnqwswvhdpbbjmsqzcrmjngzmdftjzsjvgfdtcvdwhnwwjlcgcmflzzpzpgzrvmptbjgrdjbzscrglhcjppdjdshnvvbsnnddtbwsdrpnbnlrtppcrzbbjrfzhbwgmjqtmgjvmrjgfdndlmqvhgwprsjnhcmrnfdfdzggjjzcccnsnwwbjzmsfjjfhclptfcwqjhnphpwzszjmsrtnbqpqsvcfcvrrgclwlbrqngdcdlzrdfpvbgtznjzdvjngrgswhjnrpgswtqflpgvnpbsvcrtgtzcbhdjpbjwnpdzcmprtzlppbqvpzrrlbssmwhhvqqpmwggnzwcfdnzccjrrncnvjqgbpstctwpqvhdsbcsjrpbzbdlwwvjngtbnvpthppglgsnrbwnvpzldhsgwqhclgwrdsvcfdclvdsbrhcfnbgrtqswstnjfmfrdgphpvgjfqzcwnpcghdhtflgdnhhnnnwrpnmppszgqdcqjqpnccfsqjsmwtqvzwfqvtwtthwswmcqqcqjwcgwgzgmnpzbfpzrqbvqhbhtsvvbppbmqzfnsmwppzvsctgcncztsqdfhnlwjjtvwcchvnphwpnpzqsjhlrcmnbthtqlfclnsfdtpwfzljdpfszvhgzdpzhbjtphbfbmwgfrfplntfqhgpbjzghmblzzhdcbptngqwrtfmvtbhphpvdwpswbscrwzhnvqfwlbwwqqgstgmbqlllspbhbpjmmrfhmjwzdnsdwmpvlrspgzmdjwqwcjpbgwspsghjdvrbbsbtgwptqdvvdhbhqbdhpbzdsdwsjdbjnztdqqrdhwhtpvcbblbmjgmbpqghdsfthzjffrdvldfsnpcsmnzwzcqlnvcrcbqnfcdrfbffrvhqsbqjnnbzsqvqqdqwmsvbqvtgmnnlthpngfsljqnrdhhzpmwsnqvrgdnvlbgnndfcpjfgmzqssvnnrwbmslcqpnhnnwzggsjvqcsqpfzjcmcppntmsdtfggzdncqbfjsqvbzgnnlsdbgjqffsmvnbqlsrjwdmcjbrsrpchnnhdtlcdhfdltmlvtrwjpzphtbhzzrlrwbbhhpntgbcfmphnbrjdhrhvmvhfglrncngjdsvbfrqtqzsgvlzjqzcqnwdcfgvnpsqpphwfsdvpgnchjnnjhsqgvlqcvhzzzcrsqcvrbsbjbdbgddlbb """; #endregion }