day6_message.js

let data = "htsslsmstsrrhlrrllqppfnpnzzqtqtjqttslttmvmsmbbnpbbznzjjmrmsrrnjjzczcfcqchcnnhrnrzrnrzzddtrrpjrprbpbwbswsqswqswsqsqffgngtgwtwbtbbhhslsrsmrmffgcgtcgcppnbpnpbnpptcptpltthjhwwlttrrlldzldzzzlssccrfrqfrfdfldfldfdzfdzzcnznwznzqqzpqzqdzzbbslbljlqjjvzjzgzqgqqqvsvffzjfzfmzzrjrhjhrhcrhhtgtmggchggcsggvtttwmmsspmpffzpfpjjnwwnpwwdttcfcmmlblwlvvqrqddcdwcwnnfqnqdnnncggflfdftddtftqthqhrrmsrmsrsffbccjnnjjgddppjmmldllhttqvqzvzrvrsslnlplrprtprtttnvnsvsvzzdndrnnnlznzcnnzwwzjjsnjnwjwqqczqcqwqppqnqqllgblbhhbbzbjzzwjzzrqzqggdppgcgwcclglhhwwgcccgcvvpbbrzzwszsqqjqrrczzvmvpprllsgstsnnnrvvsszgzddzttbccmjccwtccrbccnssdqsdsqqfgqfqbfqfjqqzqqmhmwhwffsjjcjffqmmwjwhjjqttpvvgddzjdddwndwdjdldgdsdmdzmdzmzqqszzcwwwjbbvvlplnpndnddjcjcttrgrggjvjsjvjssnsmshmhrmhhfvvdqqppmbbjnbnzzzwlzzfmmlttvptvpphlhwhzzwffcsfsppdssvsvgsgcscmmdwwpggtcgttmlmglgmmcsccmmgffnvvvvsscstctptzzcmcsclcffnwwndnwddmgmfmvffntfnndgdrrbmrrvprrjnjcnjjsgjgmmjjjqwqhhlfljfljlclttrgttmdmhhcncwncnmccnmnqqmhmwmdwdmdfdttnggcscfsftttcjchhqghhtdthtwtgwgttlffphfhtftpfttlgtltblljmljjsmsszgsghhnnmvnmnvmvmhvvtmmdqdppclplqljllzppwgpgvpvjpvvlwldlcdcmvfrbcqfdrgqjdmpvczgmtrbhtfgbctjghwfmpqtprlnvzvbmhnmgsnbcqpdqhtstncmtrvwmjzzmsbprfvmszgvdwjwchzcvmzncfblffwvwwrdqpfnvrtlftnvhcqpwfgzdnmpqthblmqzhbdbdhmqvscfrpbjbgjgdndhlnnpcrrmrlghcwvmmmhbvdsrztbpdvhwhsphmgblzfpflhnbrvjsgsbvgcfwdlbmbsmbqfwczhhbbwntsczhljgvdwpsfmjppmdwcfchhvtrwlfgqrzbtzndqwbwqflpthhgtzrfmspfnlrrvrjttwnzzfsbzlvfwlntvcqhfntllsrdgqjdbrbvnmjgfsqshmcgtsmlrzjmmqbpfdfhlghqjnjrcnzvvmbwhwfwpbbsmpdmvvznstqpjwmthncjsvfmbhwtbfqgfmvhhwrwzrzccbmmrngfbcqgsdjlfwrlzqwrbhvhmjzqqtgqvjwgllhhgphjthwnscndjfhrdzjctthwfszztvtzcnvsnfdwnvrrbjzplgnghfsvnflhctjntrpzfgjnfzlmwzrvqcfdqqscrffjshhgmvlgdtqpbllfdspdhcccqbmpqcgctljwzdszbfzsltfmdrcvmjqmpvzzhnczlfdbrmsvfffmfzjvnthghqgtnvjtflzrrnrhqshtzslbmbghvtqcmbdgzcmmrpbtqlzbzjhhgfcbrbcztlhdcfqccqsgdqdfrvlsprbhwhtmjfbzlzfpcslcddzdhbhstvqjgdfwdwzfhrzpthnzgmzrrbrszvcwhbdczzcnqsqrwdpmgdmcdmccmfdwdfmzpbbsdtjlmlvcnvhhgcltwmpzqmjlpbsbfrrntrbmrrmgqrdsbfcgnqvnmwwgnmvvpjzpwbvwfzzfcfrbgdshrvbpdlbpzdsvjnrsmfttqgbngjbqcnhhhmrnlgwjnlfcsdwccqqlzcdrcqnjlmsfqldgdmwlctstcvqbvvwvhvrnhvtgpcnsstnhvlttdnstlndnpdglqlbgggqlwqpfztgzvhqqwbctvgtrmrbpmvwlztsfbrmhhpfdtnsjcjmngsqtzvhqjnwmgcrjbhvghpnrjlrhjfrfrmbzvprpzlcshbqtlnlmqmfhsmbznjmpzwljccngbsvqqmghqsqwwmtqhgddnpcmmlfvmplgptzmfsmpntprnwlpjmsdsntpmpnhwlqgfwslrnjlmvhvqsnlcssvrqvtvfhhghbhnvmpngtdmrcmftjmwgnptbmjcwvrqqbczmtdprlltcjcggvffvjwdthbhvjvhbsmfnstqvczmvsgsqfjmddszzrwnbrbvlhgltjddczwpzpsgfgbtmgmssbszhjfbprpbgsqpvgwfnmpcdwfzwbfbtfwhjbjgrctcwqgfhpvjpjssmcpppwpbnlfsrmbzqdpmpmqjtzqmqswpfhfvfltwnfbltvdmfgmpbhzzdrbtnmmjfqgtrgmrbsgplfrmlnjrggtslngnphcvcwvqsdftlhddhpsdwlhzcrfwgwbndplwjmtrltmswwdqjpgmmcdchllzdgpfpfrvqrmvppvzcrvbswzdclnqnqvmfvjtpzpvzlmbngtrrjwpgqjgrrqbqwcvjlgqzddtcfmmrqtnjppqvztfpdrdmjpsqqvzrhwjgvdwwdtmrzrvhwgsqvjjrtsdtwfwhrbcsqdblhgwzghrqrqtfbzszrmjqbhrtsrcfjlzbcjmdnpthrtbhtzmhgpfcqndwpmtlvzschzzcqdnzdrfhczsrscvttlpslrzgvwprwppmpfjqwhtnhzcdjjwmsnvqzmtlzsdpbdtdtsmbmjszsglrldcsgtnmbgsjfmnrftnmvnjtswrmdthvstmdlsnsmrbqhdlpnmnhjhcccgnzrrsljvwswmhjqrrfbwwhgrcttsdcjsdtlgmgblfnvwmgztbbzlbrdnspfnvwvhzlztdhlzhwwppgwwvrhfbjvrmjpjflqzbdnlvptmrsggqmzgmzlsdzbfqnqzzdnzfgmhncvwmgrcfrmlnwzcwdsvtwbvcqpmgcczbnnfdrlsgnfgnpbdstdmwhlprnzvhjpznsgwhfhzfwmjsvcbwccpsnfgbzrltcbwczcmzwljcswgwjnhwtjrjvgrggsrqszscrjcghnwdzpzhttrjcgwvmtcwmrhvwptlgfjpdjpnhphmzdgfdvsncswbdvjdtsgdtlsgjljlczgrwbswtbwrcfpmhgfjfnhpsmfrrtcjmpvvscmgftpprdmbjwcvhzbrmpbvhgzwftwtvvhrjmljgjhbpnbnfntmjhvjrzwlqbtqlrfbblgmfsbgzhhscgwgzrwvflnfctngtwbvdbbgspntclnbwgpppjgbrlqvtfznpdttrsplvjfsgbjwjprbvdfvjtffbhsjwgbsfschfnmlqdfzmdwzvfctjjvzncdvrdttlpvpgvsssflpfnrzgfznzlldrbgnnztngtlbbrmrmlfnnspsvvsfzfbmsblmzdwqcrftvnbvdlhgdqjtglclpzrchtlffrfwslqjvbfpvnhmdgqrcjtbhmjqwqzpfndqbwldbzmwqsptdccczmhwmdqqzcqvmbbnmqndtspmbtggcghdhsfgrjgvwjdbwmltbhdvdtgqnpqhwmhzpzbqjtnlftqrjbsvtwtgpmvpnfwdtsjgdtfnlntpgrmwphphrrzhbdrbzhtqddwvptdllntjzldzrndhfjwdfnmtjmjtfmndbvlwgmlcmwwlpfdjwbfznbllbmqrlmvljngvpmdlqmvdvwvpqwlbqssqcbnrmhdvrzwljstghmhntwsbqmnlpgthbwmrznbbggthtjhnndnqbzmcrtftcbnpctqjzghdfcvmmvpqwtnntstlspfsgwfdbrlsbwgbhhbfcvwrjclsgmmbqmmjwtdjqppjvcbnbvfwczlqzbtnlhzhssglgnlm"

function solve(data, numUnique) {
    for (let i = 0; i < data.length; ++i) {if (i < numUnique - 1) continue; if (new Set(data.substring(i - (numUnique - 1), i+1)).size == numUnique) return i+1;}
}

console.log(solve(data, 4))
console.log(solve(data, 14))