day6.livemd

Day 6

Part 1

marker = fn str ->
  str
  |> String.codepoints()
  |> Enum.chunk_every(4, 1, :discard)
  |> Enum.map(&MapSet.new/1)
  |> Enum.find_index(fn s -> MapSet.size(s) == 4 end)
  |> Kernel.+(4)
end

%{
  "mjqjpqmgbljsphdztnvjfqwrcgsmlb" => 7,
  "bvwbjplbgvbhsrlpgdmjqwftvncz" => 5,
  "nppdvjthqldpwncqszvftbrmjlhg" => 6,
  "nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg" => 10,
  "zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw" => 11
}
|> Enum.map(fn {k, v} -> ^v = marker.(k) end)

marker.(
  "pwjwljjjvqjqjzqjqvvpgvpggmdgdrrzmzfzmzffzbbjnbjnjddsdpsdsgsgvsgvgmmzvvpspvspsdsbsbffhwhlwwzllftfhhrfrsrrnnngqgtglgfgtffnssrspsqppdvdtdwwpfpzffnpnddvsswjswjjhdjdrjrwwfpwfpfjppzwzvzpzrznzgzcgzgpgfpffwggtbbhsslzztpplltdtqtctrrszrzszpsprptrtgrtrzrvzrvzrrsfsbswsvvbdbjjgljjwqwgqwwtmwwnbbzdbdwwsnntztstbssnjssjmmldmmrrnfrfgfbbszzzlrrwzwtwwbrwrlwrwzwmwqmwwtqwwtvvdqdtqqfnfjnjsnslltcllvmmdmttvsszrsrwssdmdttdmdrmrsrvrllrhlltmlmlzmlzzhvhbbflfsslclpcczmmcjmjccpgprrgnrrzqqmgqggfvgffbsfsbfbttrgtrtptgtjtnnfbfmmrrcmcwwbbmwmvvvtppslsvvlsvswwztwztzqqpggdccmlldlplggrgddlrddvwvsswllsffbllsbbslshslswsllnqlqrqqpmqmtmqtmqtmmbwmbbzdbzbttvptvpvgpvggblbsspgppvmvsswfssfdfrdffpbfpprmrssmbbmggszslzlslblsldsldssjjsrjjjdfdjdtdmdnnncddpfddrjdjvjfvjffftmfmqqqqqfjjhssbzbbfjjmmzgzllphlplhlplfpfnpnsppjjqsshpssjdjzzwvvjfvfnfttmtbbgtgbbdpbbjppzcpzzvcvpvvdcvvcfvvfsvsccmhhrwrjjsrjrvrfvfwvvtftzztlztlthlhrhnnlpnllnmnfmffzpffhlhbhqbhqhfhwwlglnndgdwdswwgtwgtgsttpbprpqpnnbsnbsnszzrszsqzqlqggvhghrrvprvvvqnnmmrwrbrrmttwrrlmrrrddmsddbhdhdjhdhrhffppphghvvtztptjjlppcqcscjscstsmsbspsgpgqgmmndmdvvpnpnrrjtrthhtzzjlzzrwzrrfsfflrrmffhlhglhhhhvwwttlcttbqqzzbzzzbhbsscqqjggqpggqffbttrfrjjjqmmpttlvvqlvqqqtgtrtcrcbcnbbhfbfhbhqbhqbqvbvqvrqvvgttqwqpwqwnnpgngpphjppztptnnrssjqqrplzrvmwmbrbgbnggvzpmphqsrjrdhtslpmmwrhgcndwtbsbrfmsplzqswsnmrwdwwhzmpbqcmjfsmnwqnjmvdczhgmtfjwnjfdllfzdwpwgclpbdqtqnqqqvpthltznfzshhgrwwqclpplmdwtpjszrdwwzfbljcjmqmhptfhvcbvgfjfftbsfglwqldphdzzgcmvtsbhlsdncfjcsqrqrtdhttcwzlbqhvgppbrjfzdzwzprwpfflmdspcmqcbdhsvwjswwbzwnqrshbqfnmtdzrsrjgqngntllcgwjnmjqvtgwvttfqrcjlhbpcrszlngfmdgzprcdttgbjpcdzbhtdghpltcbvcddnslhqthfvzjtspqlzhdprhgtrlqqgtsqwwjqthgdwfgdfzhrnrwlrpqmgqltgldpjqgjzvngrphclbfftnwfnfvsvhftthptqfnvlftdpdhcrjdhfwtpwwvsblgntdwcpnsprhnpjtjsprdrdjwlhnmnzmmjmcdfsctzgmlqwwrwztjndqgpqrvdgplcnntqhfjlzjszpdwnvlwdzzgpzvplglgrmsjgjpmsrdsgzlfblgbgszgdtgsggqvhzmnfcnvlnzrfpqphctlcqccqzslmlsbbztnpncqpgscgdmmsgfwqrzpmbqrmfqsnnggswhmgmtmgdmhwthbgbdsrtnsrvdfdhlhhczgdsdqnpsgjzpbnsmgrvsfdjlhgjfjjwqnrnrbzdzcjlstclpqfnrflgnzbdbzvbjcbgqrrrlfcpgptcghhqqfsvsgljvjhdgdgcjtnrqsctmwhzbmbrfrsvndhfrtwlfgvqcbjsvttrctfshrggdvgbhthnwbwqglrvfbsqnbhdwgzhbccjnlhtcbjlpgrvttthnwvvspnzvqhjvmtwshcstdjhfqhqcgvwqwwwwrfdmnjhldsrhgmtjddsghdmdrpczbcjflmbhszctmvdttfrrqqpwslhvqbjlsrjdjrcqjrhwgjlsqmvdpvvvlbzwtthptpsggddcbqbhrvrpdtncvgndclhpngzgfqdqgwwbrjltjtqbpbtbzjmfmnjnlqmtzvdqdwqhbgptplrgdsfpjzfrpdcdsznwffpnzsmpqjfbcpddqjgfqhqbwsfmzgstfdnzhphhvgbzvjrlmqmrznpctftcmbtdpbfbfpfpjtjhbcrrssnlvtrtnzvwtjwplclpqndpfstjmghmzsllhntprtjwlppjnjgjzlvlcbcwjvrjqjhfnnpmwlpngwtvvbcllmjzqfrwvtvsrvbcpfwcdfwmdwvztwtbrgvlvmfjmpzdzmfbcmrsqfwqjfjfrgmnblnzfzcvgwllvmqfmdlqqgvvjrptlrjcwphvchwhmtwhnlnjprqhlrhmdfptvpshjbzrhptvnqfvjfjcnglnbfhbwghqqjbqzdthjwqzznwfsmqmbsqnwrdrrwjgzjdmgtsqswlqcpshdmcfjttpszqmsjhgfsrvgchgwzbqgbdqhmbndmnmwjsnjjvmtpprbtlwzpvfdnbtjnzzvlwndgbhgwbpllvfghwvwjmlpnzfjzjwwmtvbbfndppbqwhjlwgtswmgffddbhnwqljvgcvfnqmzgvfmjwsbcrpgtcpchlblccgpgpmddsjsfwbnvnsfttnsqjshchdztvsbjwsfmszfwpwsmgzvvcfddtczvvmnhgjffrsfqzfmphpfblmwgcbbrjqzdztzzzjhqmjzrgmwgrqdfqdbjsgwfndqgnmdvjlwdtjpjtpcqlhtcfvnmzjswldrbqjpmrlqwhvnqjshbqqvzwwsdjmspgbvrgvpjjnwsvnvnppvlnqbdllfczjjftpnlrjfvcwgwbdmldtcnczqzcptjjrgglnnbgmrdffgmnnwvjzwbgcncnhzmthswrdsrhchprrrrnhjfnzmsgfjltqzmttvhslnsgcjfgqwcsddfstcstspcpdbznvdrnqhwqsfgqtdbtwspfswfjbzgtqjpvzfhfdblszblmgrmmlwvnwwdsdjjvrsfjfjltcsfccplftvpltqshgnpnqlqcglrhvzldptspnbvjcchnnvzvbbqnnnbnggrhpcgqtgnjdqplswtblgtwqzmltjjhpdttgbcvhfrsdcgjzswvtbbhrpnzmrjhgznbdpqgqdhwcnmgflpdtbzdbvzvslbvvwdpcnwjtvjhgncnljfwlrvqgdrjhdcprsqjrmwwlcrrvsjtlmqmjtcbqwcbmgnvfshdgmmfffzvwjphjfspvdzjsqdlgqfdjwwshdcssqvvgdcvvtmwlfjdvtfllrvltmrsgpdtdqsfjpcvjnqszpnbqqlnpdvhtswbgwnpcqpgzqwlgsmlnlngcdmqhchcdgfmrhfwwrgrrdrhcsbbcrhghdjrcsltchqghvmbvbbpqzqbgwmqrgwchhbvdsqbqrfcbzwjrlqtnmghtjbtjdpngcjzswfmjfphjnftbhdgvwjsvqfbsfgqhfbcrgrsppsvbnpwlhsdrffcmmgzpjfsvllcrbtwrwddthfjvjndzfzbcmglhbzpzwwbtzdpdlwrnbzqjbqwpbdlwfddbtzjhqshmcghqfcrzrmrtmqwpqhvqzbfwhbssgjcmzqcpvnntbpfqwhbmtjdtbtrrdhsvzqjltdshtlvwwmlbdzlvjhmtppnbqcjnncpslcggsjbrmzvdgqzclwszgzfqthndnjfjrznlmmtjwwhnzvhnjncccpczrftvhtdhjbzvwvlgqhdnfqdqrhctfffpcnqzdrgqqzcczdjvpzqfgfcpjzqhbwshsqhvqzpsb"
)

Part 2

message = fn str ->
  str
  |> String.codepoints()
  |> Enum.chunk_every(14, 1, :discard)
  |> Enum.map(&MapSet.new/1)
  |> Enum.find_index(fn s -> MapSet.size(s) == 14 end)
  |> Kernel.+(14)
end

%{
  "mjqjpqmgbljsphdztnvjfqwrcgsmlb" => 19,
  "bvwbjplbgvbhsrlpgdmjqwftvncz" => 23,
  "nppdvjthqldpwncqszvftbrmjlhg" => 23,
  "nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg" => 29,
  "zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw" => 26
}
|> Enum.map(fn {k, v} -> ^v = message.(k) end)

message.(
  "pwjwljjjvqjqjzqjqvvpgvpggmdgdrrzmzfzmzffzbbjnbjnjddsdpsdsgsgvsgvgmmzvvpspvspsdsbsbffhwhlwwzllftfhhrfrsrrnnngqgtglgfgtffnssrspsqppdvdtdwwpfpzffnpnddvsswjswjjhdjdrjrwwfpwfpfjppzwzvzpzrznzgzcgzgpgfpffwggtbbhsslzztpplltdtqtctrrszrzszpsprptrtgrtrzrvzrvzrrsfsbswsvvbdbjjgljjwqwgqwwtmwwnbbzdbdwwsnntztstbssnjssjmmldmmrrnfrfgfbbszzzlrrwzwtwwbrwrlwrwzwmwqmwwtqwwtvvdqdtqqfnfjnjsnslltcllvmmdmttvsszrsrwssdmdttdmdrmrsrvrllrhlltmlmlzmlzzhvhbbflfsslclpcczmmcjmjccpgprrgnrrzqqmgqggfvgffbsfsbfbttrgtrtptgtjtnnfbfmmrrcmcwwbbmwmvvvtppslsvvlsvswwztwztzqqpggdccmlldlplggrgddlrddvwvsswllsffbllsbbslshslswsllnqlqrqqpmqmtmqtmqtmmbwmbbzdbzbttvptvpvgpvggblbsspgppvmvsswfssfdfrdffpbfpprmrssmbbmggszslzlslblsldsldssjjsrjjjdfdjdtdmdnnncddpfddrjdjvjfvjffftmfmqqqqqfjjhssbzbbfjjmmzgzllphlplhlplfpfnpnsppjjqsshpssjdjzzwvvjfvfnfttmtbbgtgbbdpbbjppzcpzzvcvpvvdcvvcfvvfsvsccmhhrwrjjsrjrvrfvfwvvtftzztlztlthlhrhnnlpnllnmnfmffzpffhlhbhqbhqhfhwwlglnndgdwdswwgtwgtgsttpbprpqpnnbsnbsnszzrszsqzqlqggvhghrrvprvvvqnnmmrwrbrrmttwrrlmrrrddmsddbhdhdjhdhrhffppphghvvtztptjjlppcqcscjscstsmsbspsgpgqgmmndmdvvpnpnrrjtrthhtzzjlzzrwzrrfsfflrrmffhlhglhhhhvwwttlcttbqqzzbzzzbhbsscqqjggqpggqffbttrfrjjjqmmpttlvvqlvqqqtgtrtcrcbcnbbhfbfhbhqbhqbqvbvqvrqvvgttqwqpwqwnnpgngpphjppztptnnrssjqqrplzrvmwmbrbgbnggvzpmphqsrjrdhtslpmmwrhgcndwtbsbrfmsplzqswsnmrwdwwhzmpbqcmjfsmnwqnjmvdczhgmtfjwnjfdllfzdwpwgclpbdqtqnqqqvpthltznfzshhgrwwqclpplmdwtpjszrdwwzfbljcjmqmhptfhvcbvgfjfftbsfglwqldphdzzgcmvtsbhlsdncfjcsqrqrtdhttcwzlbqhvgppbrjfzdzwzprwpfflmdspcmqcbdhsvwjswwbzwnqrshbqfnmtdzrsrjgqngntllcgwjnmjqvtgwvttfqrcjlhbpcrszlngfmdgzprcdttgbjpcdzbhtdghpltcbvcddnslhqthfvzjtspqlzhdprhgtrlqqgtsqwwjqthgdwfgdfzhrnrwlrpqmgqltgldpjqgjzvngrphclbfftnwfnfvsvhftthptqfnvlftdpdhcrjdhfwtpwwvsblgntdwcpnsprhnpjtjsprdrdjwlhnmnzmmjmcdfsctzgmlqwwrwztjndqgpqrvdgplcnntqhfjlzjszpdwnvlwdzzgpzvplglgrmsjgjpmsrdsgzlfblgbgszgdtgsggqvhzmnfcnvlnzrfpqphctlcqccqzslmlsbbztnpncqpgscgdmmsgfwqrzpmbqrmfqsnnggswhmgmtmgdmhwthbgbdsrtnsrvdfdhlhhczgdsdqnpsgjzpbnsmgrvsfdjlhgjfjjwqnrnrbzdzcjlstclpqfnrflgnzbdbzvbjcbgqrrrlfcpgptcghhqqfsvsgljvjhdgdgcjtnrqsctmwhzbmbrfrsvndhfrtwlfgvqcbjsvttrctfshrggdvgbhthnwbwqglrvfbsqnbhdwgzhbccjnlhtcbjlpgrvttthnwvvspnzvqhjvmtwshcstdjhfqhqcgvwqwwwwrfdmnjhldsrhgmtjddsghdmdrpczbcjflmbhszctmvdttfrrqqpwslhvqbjlsrjdjrcqjrhwgjlsqmvdpvvvlbzwtthptpsggddcbqbhrvrpdtncvgndclhpngzgfqdqgwwbrjltjtqbpbtbzjmfmnjnlqmtzvdqdwqhbgptplrgdsfpjzfrpdcdsznwffpnzsmpqjfbcpddqjgfqhqbwsfmzgstfdnzhphhvgbzvjrlmqmrznpctftcmbtdpbfbfpfpjtjhbcrrssnlvtrtnzvwtjwplclpqndpfstjmghmzsllhntprtjwlppjnjgjzlvlcbcwjvrjqjhfnnpmwlpngwtvvbcllmjzqfrwvtvsrvbcpfwcdfwmdwvztwtbrgvlvmfjmpzdzmfbcmrsqfwqjfjfrgmnblnzfzcvgwllvmqfmdlqqgvvjrptlrjcwphvchwhmtwhnlnjprqhlrhmdfptvpshjbzrhptvnqfvjfjcnglnbfhbwghqqjbqzdthjwqzznwfsmqmbsqnwrdrrwjgzjdmgtsqswlqcpshdmcfjttpszqmsjhgfsrvgchgwzbqgbdqhmbndmnmwjsnjjvmtpprbtlwzpvfdnbtjnzzvlwndgbhgwbpllvfghwvwjmlpnzfjzjwwmtvbbfndppbqwhjlwgtswmgffddbhnwqljvgcvfnqmzgvfmjwsbcrpgtcpchlblccgpgpmddsjsfwbnvnsfttnsqjshchdztvsbjwsfmszfwpwsmgzvvcfddtczvvmnhgjffrsfqzfmphpfblmwgcbbrjqzdztzzzjhqmjzrgmwgrqdfqdbjsgwfndqgnmdvjlwdtjpjtpcqlhtcfvnmzjswldrbqjpmrlqwhvnqjshbqqvzwwsdjmspgbvrgvpjjnwsvnvnppvlnqbdllfczjjftpnlrjfvcwgwbdmldtcnczqzcptjjrgglnnbgmrdffgmnnwvjzwbgcncnhzmthswrdsrhchprrrrnhjfnzmsgfjltqzmttvhslnsgcjfgqwcsddfstcstspcpdbznvdrnqhwqsfgqtdbtwspfswfjbzgtqjpvzfhfdblszblmgrmmlwvnwwdsdjjvrsfjfjltcsfccplftvpltqshgnpnqlqcglrhvzldptspnbvjcchnnvzvbbqnnnbnggrhpcgqtgnjdqplswtblgtwqzmltjjhpdttgbcvhfrsdcgjzswvtbbhrpnzmrjhgznbdpqgqdhwcnmgflpdtbzdbvzvslbvvwdpcnwjtvjhgncnljfwlrvqgdrjhdcprsqjrmwwlcrrvsjtlmqmjtcbqwcbmgnvfshdgmmfffzvwjphjfspvdzjsqdlgqfdjwwshdcssqvvgdcvvtmwlfjdvtfllrvltmrsgpdtdqsfjpcvjnqszpnbqqlnpdvhtswbgwnpcqpgzqwlgsmlnlngcdmqhchcdgfmrhfwwrgrrdrhcsbbcrhghdjrcsltchqghvmbvbbpqzqbgwmqrgwchhbvdsqbqrfcbzwjrlqtnmghtjbtjdpngcjzswfmjfphjnftbhdgvwjsvqfbsfgqhfbcrgrsppsvbnpwlhsdrffcmmgzpjfsvllcrbtwrwddthfjvjndzfzbcmglhbzpzwwbtzdpdlwrnbzqjbqwpbdlwfddbtzjhqshmcghqfcrzrmrtmqwpqhvqzbfwhbssgjcmzqcpvnntbpfqwhbmtjdtbtrrdhsvzqjltdshtlvwwmlbdzlvjhmtppnbqcjnncpslcggsjbrmzvdgqzclwszgzfqthndnjfjrznlmmtjwwhnzvhnjncccpczrftvhtdhjbzvwvlgqhdnfqdqrhctfffpcnqzdrgqqzcczdjvpzqfgfcpjzqhbwshsqhvqzpsb"
)