Added day 8 code for part 1 and 2

Signed-off-by: Louis Vallat <louis@louis-vallat.xyz>

day8/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "day8"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

day8/input

@@ -0,0 +1,200 @@
+ceg gedcfb ec eabfdg gcdabe baged cabgf gbaec fecagdb eacd | efcgbad adfecbg gec abgce
+afebcg deac da fgeadc aegbdf fgcda gad dbgfeac cgaef fcdgb | fgace dfgcb cafdg afdcg
+gfecb gfabc gdcfeb dcbe efcagd egbafd dfebg ce cef bdacgfe | ce efbdg ec cef
+cf cbfag bagfd fcegba egdcab cegab edgabfc acgdef ecbf cfa | ecbag egdfca aebgcd cgbaf
+ec cgefab afged fec dbcaef fbdcag bfcag bfdgeca aefcg bcge | ceafg cebg fce cfabge
+ab baf dceafb dbfec dagfe bcgdfa efcagdb ebdfcg aecb edfab | cdbagf bfdec ba fab
+bcag fgabd cdbegf cfgdb ag gfa edcgafb acbdgf dbefa cdafge | bgfad agf cagb adbgf
+gefcab df eafbdgc cfed fad acbdg gebafd dfacb aefcb efdacb | gefdab fd afdcb aecbf
+bg fcbda fcbgd bcafde bdeacg dbgfac bagf cbdegaf dbg dfecg | bdfeca bagf bfdaegc bdgefca
+fcgebd efcga cfeab cg cbga febcag beadfc defga gcdebfa gfc | eafcg aedfbc febcga geacf
+beagcf decga bgdc acdfe efdgba dge agcbde gd bcfeagd cebga | gdacbe gd fegbda adfbeg
+ed cbagdf gcfea aecdgb dae fegdab fdbe edagfcb edgfa fgbda | gcadeb aecbgdf bgcdaf egdfa
+cgdb afbedg agfbcd ecabf gc cadefg gcbfa cgf dcegfab fbdag | fcg acgbdf cgf cg
+edacg af bafedgc fdegba bfecdg gaf fbac fcegb ecfga faegbc | af edagfb fa agf
+ac fbdea dbagfe fecdg dfabce bcfdgae aceb acedf gcfbda cda | ca eacdf feadbc bcea
+acdebf bdafgc de edgba deabgf gbeca fabdg ade fged egabdcf | gdaeb fgadb dfge gfcebda
+bc dacbeg dcage eacbd gedcaf afegbc bgcd abcedfg acb dbfae | dgace afdgec edafb bgecfa
+fbged gc gce facbed bacefgd cedab adcg eagcbd gdebc afcgbe | gfceab gc gec gc
+aefcbgd adbgc ad afcgb degbfa dfac gda cebgd gfbeca gbdfca | gebcd edgabcf cafd ad
+gcbed cef egcdba gfdc fc gfbced eafcdbg acefdb fegcb gaefb | bdagec fdcgeb cef gbcef
+dcabg ecabfd ecdbgfa bdfac fbagec ga agc afdg bgdce dbgafc | ecadfgb agcdbf gac cga
+beadcgf fcead ef bfdac egbcaf dagcfe edgf acgde geadbc aef | fcebgad cegfba fcabd afe
+fadgbc fabdce acbgdfe cdaeg ecf faecg gecbaf fcbga ef bgef | fbeg ebcagf eacfbg fec
+gefcad cg bacg fcegb eagfb dbfec fdgbae gfc afcgedb acefbg | bafdge dcfaebg cg afgceb
+bafedg cebgf cdb cd abcgde acdf badgf cdgbf dacgfb dabgfec | dfcgeab gfdcb dc dagcbe
+da cgedfb cbdgea bcafgde gbda ecfba cdeab edcagf ead bcegd | beafc efdcgb bdecg ecbdga
+febdc gf eagf fdecgba dgcea adfgbc gecadb cadgfe gcf gfced | adgce gdcabe efga gfc
+bfaegd begdf afcbgd bdg afbeg edgfc fegbacd feabcg abed bd | gabdef agfdeb afgceb bfaeg
+dfa agde edgfc gcefda cdbfea fdgca egfbdc afcgb fgcbade da | gfdeac fagbc efgdc dfa
+dbgfe bcdge faedbg fgcebd ecdbfa dbc becfagd gcbea cd gdcf | egcdb dfgaceb fbegdc fgbde
+agbfc fgebcd da fceadg gbcaefd edca dgfaeb fagcd gad efgcd | bcfag adg gcbfa edafcg
+afgdbe bc fceb gbdafec dacbef bca cfabd dcagf bdafe cebgad | efdba facgd fcdag dbfea
+agcdb cge faegdc eacbg eacfb bcafge egacfdb begf ge acbefd | aebfdc bfdaec cabge beacf
+gadbf fgbdea dage egbafc fcedbag bad gdcbf dbfcae bfgea da | dgbeaf bdagfe ebadcf cgdfb
+bdaefc abecgd bgefd cdga bcafge becdg bgeac dc bcd feagbdc | facdeb ebcag dbc gbedc
+fd fgdb adf bfdecga gdeca fadegb eagfd fcbead abfeg afcgbe | bdgf gbdf acbdef egdaf
+bfgaced ebgf aebgc fbaegc ecadf cagedb afceb bf bfc gfadbc | eacdf bagcef fbc adcfe
+fce cedabg cfgde efgcdb bdgceaf ef adgcf fbge bcged adbcef | caedbgf dcgaeb aefcdb cef
+dacfe ecbad cef bcfa cdafeb aecgbd gedfa cf gebdfc aecdgbf | ecbfdg bcfa debcfa cf
+gbdcfa cbgfd cedab eg ecdbg bge gceafb dcgefb gdef cfgbdea | adbec gedbc dbacfg decbg
+cfdebga adb cebag dceb cafdbg bdeag eagcfb gdacbe afedg db | cebd fadge eagdcb bad
+efc fdcab bfae dfgbca bacfgde dbceaf bfgcde gecad ceafd fe | abdfc cfbda cdefa dbafec
+cdfg efadb fabcge cagedb fgb fg gfdba edbgfca acdbg bgdacf | bdeaf abgdc fbacdeg becdfga
+fbcgd ecfga afcbg gcbeafd agfebd aecb fab gfaecd ba fbaegc | fcbga afb cfbag abedfg
+beaf gdbfc geadfc gefda cbdage edbcafg gba gdfab ba egbadf | dbgceaf begcda bagdec feadg
+fbagec egafdbc dbagec adgefb gadc dba aecbd edfbc ad eabgc | cdaegb ad eabdc da
+gbdcea dgbca fc cafg fgbed dfc egdbacf gfbcd fdgcba fbdeac | dgfabc afgc abcdg aebdfc
+gbc cefbgd aegcfdb abdfeg cgedb dcgf cg bcade gcfeba edfbg | cbgefd abgfced dabgfe dcgeb
+bcefdg dcfeag fdaec edcfg dae badgec gadf ad feacb ebcfagd | fedac fdgce gcafed gfdecb
+bgacfe bc becfa bfc ebgc fgecda fgedbac bcfagd fgeac dabef | cbf gafbec febca ecbg
+bfeca cadfbe afdbceg dcgaeb acefg bce faebd fbaegd bc bdfc | efdab cbe cfbd fadcgeb
+fgbcd ed gcdbe fbde eagcb deg dcbgfe gbafdc ecbfdga agcdef | cdbfg cbgdf ged defb
+gefda gb egb fceba efbcgd cdfaeg dgab dafbgce afbeg beadfg | ebfac fdgcea cdegaf decgafb
+acedbf decaf eadbgcf adgfb fge egcfad fdgea efbgdc eg aegc | afedcg dfbeca dfegac adbfg
+ecdfg fgba aebgdc ega begafc cbafe abdfegc acgfe adcbfe ag | fcdagbe afcbe ga bgfa
+afbec dafceb fdcgeb gef ebgcafd gcfa dbgea geabf fgecba fg | dcfabe feg cfeba febadgc
+edbfag fceagd bfcd dc abgdcfe abfdg fcdbga egabc cgd dgbac | acbge dc cd dcg
+bdaf bfcegda adg agfecd fgcba fgdacb da cfgeab cbegd cdagb | cgfab dga da ad
+dgfcb abgedc agcfe cfedg bdef dge gcdfab egcbfd bdfagce de | gde cafeg edg dbgfac
+dg fgbcde bdgaf cfgeabd adbcf aged ecabgf fdabge fgd gbfae | aged gd agdefb gdafb
+ab bgca dabge cdfeab gdceaf cagfdeb gecda cdeabg gdebf bea | dbafce fecbad fedgb bcefad
+gbfda gacebd gcebf gabfecd cfbaeg eabgf fcae eba fgbcde ea | gcebf ea ecbgafd ebcfga
+gecdf febgc fbc afbgde befgdac fbgcda bc bafgec cabe fegab | bc cefgb bagef fgaeb
+afcebg fe abedfc fae egbf cgefa abecfdg cbfga fcdbga cgeda | cabfgd acedg cfgdba bgfcad
+eagdbf defcg fcgb gebcfd gf gef cedbf caefgdb cafbed gadce | gef gf cafgdbe dcgbef
+bfac bdcgae gbefacd ace efadb ac edfac abfdec adgebf dcgfe | dbgfea dcebag abdef ca
+eabg dagfbe eagdf gcafdb afgbd feacbd efcgdab ae fcdeg fae | fegad dfbacg eacdfb fgadb
+cgeabdf ce bcdafe gecf dabeg aedcfg bdcgfa ecd fadcg egacd | edcafg cefg gbcfad cfeg
+cfdba geabdcf cf abgdc abefd gbceda gafc fcb gdcbfe gcfdba | cbfgda gfdacb cafg fdabe
+gcbfe faed fbagdc de adfgc agcedbf bcgaed dfecag gde cdgfe | edcgfa cadfge cadfbg cgbdea
+edcbg fedacg acdbg bcefag cdgfe be cefdagb bdef bcdefg ecb | fbeagc eb dfegc badgfce
+bfagd abcgfd debfcg af gadecfb abf cdaf dgcbf eabdg faegcb | gacbef fbdgc fa dfcabg
+deabfgc cedfbg eafbc cafged efdabc cfdea fagbc be bead cbe | gbfac dbgefc ebcgdf gbafc
+bgfad cfabg bcea cfegad cgafe fdbceg cfb ecfbag cb dfgebac | cefagdb cb gceafd bcf
+afg egbfdc cegafb gcdea cbefdag begcf bgeadf cfab af ceagf | dgebaf fcab dagbfce bfac
+de ged bdfecga adefgb ebgfd bcdfga fcegad baed fgdab gfebc | aecfdg ebgfd ebdfg fdbaecg
+fdbcgae badgc bfcg cadeb edcgfa adbgef abg gacfbd gb agdfc | gb fegbad fecagd abdfgc
+egfa agd febadc efbad fgdcb bafdg acdefbg egdabf bgcaed ga | gfdbc ebafgd bgfdae fgcdb
+gbfade egcbfd gadf bfcae ebfgd ad egbcad dafbe bgdafec dba | fgda gfdbe cbedgf adbef
+af gcdba fabdeg egbfd gcedbf fbeacg bgafd dfea cdaegfb gfa | dgcba fga fbdga gbfed
+eadc cdfag gfedb cfebag gcdfab gacefd gae gdcbfae ae egadf | gacdfe dfcag gbacfd ea
+dcafb bfedc ed bed dgafcbe baecdf cbgef deca bgafde bgacdf | faegdb dgcfabe fdgbca fcdeb
+afbgd cbaefg fedg bcdae bdaeg adfgbe ega bfgdac ge dfbgeca | eg aeg gae acgdfb
+gfedb fdaegc bacfegd dc defgc fgeca edc ebcfga dgebac facd | ecfbga cd fbgaec edc
+ecafd abe fegcb efgcab fcdebg ceabf aebdgf cfedagb bgac ab | eab cgfedb fcabeg fabedgc
+febad edgfc bdgc gb bcdagfe geacdf edbfcg agbfec fbg dbgef | ebdgf defbg fbaed gaefcb
+abfe gafcde dfegcab cbefg agf gcafb ecfdbg acbgd agebfc af | dcbgef fcadbge fag bgacd
+fa cafedg aegdc becfag aedf fag gfbcd ebcgda aecbgdf cgdfa | af bgcdf acegd dbfacge
+agdcef debac eca bafdc ea dabgecf aefb fbgacd dbgce eabcfd | bgcdaf ae feacdg dgbce
+ad cedfg bfadeg edafbc efagd gdbfcae fgbae fgebca adf bdag | geabdfc agfebc defcab daf
+abedfc fabged bfecga gea acfgbed gfcad gdefa ge ebfad egdb | acfegbd gbcafe degb faecgb
+dgaef dgfcb eabfcgd dcefg bdegcf ecg fbcadg cbgafe ecbd ec | acbfeg cgfde ce gedcfb
+cdfagb aecgdbf cfbdg ecafgd afbge dcba ad bgfdce dga dgafb | ebgfa ecgfdb bdca fedcbga
+ecbdagf egacb dfcabg dbge acbegf adb dbgaec dafec cbade bd | dcbea egfcba abefcg db
+fecgda acgeb bd bdcf abecd fgabde fecda bde edbfca fbadceg | edb badce cabge edb
+dabfc ed dabefc gfcebd ebda cdefa cagfe cgfedba bcfdga dfe | facdb bdefcg cdbfea afbgdec
+bgfced fgbac fdag fa cdabfg fgbcd ecfbad fac fgecbad gcbea | fgda cbfdae fgdbc dagcbf
+gcd fgeda dafc gabcefd ecbdfg baefdg dc cfgade adcge ceagb | cbdfeg cbgea cd fdgaec
+gbcaefd fdcag gcefd ed dfeb ecbfg febcgd abgedc dce bgaefc | aegcbd afcbeg gcefb gfbce
+debag cgaeb cag bfgdae abfce dgcb cgfdae bedagcf cabegd gc | gcadef abgde abgedc fagedb
+fedgcb dagec cbagdf acebd adegcf afeg eg cdefgab gde fdgac | dcgaf bcafdg geadc fage
+ebgdca eafgc cb abgec gbcfed gbc bcfaegd dgaebf bdeag cbda | cdab aedcbg bgc aegcdb
+cdgbfe bcfgade bdfce af dafe cbgae fba bcdfga ecabf abecdf | eabfdc afed gdacfb defa
+aegcb bcdf gcefad cdbea dce ebafdc gedbfa fdbea cd cbedfga | ced cde dc bfdeca
+gadcfe dfgeb bcgade agefbc bedag bdca aeb efgdbca ba gdeca | cbgfea eba bcgdea gdaecf
+cgfebd agdefcb cfdea agcfde fecag fdag efcbda feg gf bcega | cdgabfe acfgde gfeac decafbg
+gbefdca cbfgae gfeda fa bfad aef fabedg dgcea cbfgde bgdef | bacegf daecg aegfd edgfa
+aedgf bfadcg edfcg cedfba fbecgd agbfedc gcbe dfebc gfc gc | cgeb dfecg fcg cg
+gefdabc eb bea febd gedba gdfae gfaecd agdebf gbacfe cagdb | eba eab bcgfead agfde
+caegfb dace gad bdegfac bagecd dbega gbaec fagdcb bedfg da | edagbc eacgb gcadfb fgbcae
+caeg fge agfbd adgebfc aedfc dcgbef daefg ge fadecg bfedca | bafedc fdbga eacgfd gcefdb
+dfb ebcfad adcb bfgae gafdec acgfbde db eafdb cgfdeb fedac | egbdfc fedab edacbf cbgfde
+ac acfdge eacbg cfgbe efadbcg eca cadb edbga eadfgb badgce | cbad dacb gcbef fbeagd
+ecabdgf dfgbca fadbc ae afe bgfaec abdfce gfbde efdba aedc | bgfde dabfgc dgefb cbafdg
+cfgba decfg efcagdb dgaefc adg debgaf ad gdacf bfdegc ceda | dfagce gcfdbe fbegad adec
+gbcaef bgd cabedg dg fdecb dcbegfa cgda eagcb ecgdb bgfeda | edcgab bgdcae begacd cgadbe
+fgedbc bacged cfged bdcef ge fcagd egc edgabcf fabecd gebf | bcefda cfegd bfeg cfdeba
+ecgfa dcbfea eb fcbda dcgfab febcdg bfe cfeab ebad fcdabge | adbe eabd abfced gfdcaeb
+bcafg cafge cfgeba bcea ec dbceagf cef fgbedc dgefa dfcbag | cfabg dfaeg cafge aefdg
+dcegaf cefg eabdc efbadg dcbaegf egd ge cgead fcdabg fdagc | cfgda bfgadc fecg dacbe
+cgedb afdebg acfe baedc dfgacb fabcde ca cba acbdfge daebf | acedb dacfgb gdecb acbed
+fgcdeb dacb abfge dfacge debfc ecbadf bfdaecg dfa da dbafe | bacd cdba adefgc dfecga
+fbadg gbfca cab cdfaeg fdbeac cb cagfe edgabfc cegb gaebfc | gfbda adfgb adgcef gcefa
+gcefa eafbdgc ca eacgbd bfgea bcaf bgdaef acg cfgabe dgecf | facge ecbagf aecfg beacfdg
+baegfd cdgfeb gbead befdg geadbcf egfabc afdg gea ga aecbd | dfag efdbg afbegd facbeg
+afbec fagedc deba cdaef cdfebag acb bdfcea ab fgebc fcbadg | bcgefad ecgbf dacfbg ecdfa
+dagecf gdeabc cd fdbge cfbaeg cde fbadgce cafd cefgd gacfe | dec gefcd agdcbe cdefg
+acbeg afecb cfaegb bfacde dcbagef cg gacf dbefgc aedbg cbg | decgfb dgcbefa efabcg dfacbe
+de edg fdeb gafdb fgeca gdfeacb cfgabd badecg adgef fdgaeb | cbgade de bafgde efbd
+dcf gefad bedcfga fgaedb dfcae dfbegc cfga cadbe fc afgcde | ecadb fdcae cfd gecafd
+agecd gad cgfd abdegf bfdcae ceabg dg cgdfea cgadfeb adcef | fcdg dga aegbc afecdb
+bg dfage bcga ecdbfga dbcafe gdcbfe aebcd bdgea egb dacebg | dgcfbe ebgad bacg dbgefc
+afgcd acdfbg fdegabc gbdef bc dcafge abcd cbgafe dgcfb cfb | bfc cbfdag bfgde cbf
+cbdeagf egcaf ebgca bgcad cdgaef ebfg aecbfd ecb eb bceafg | eagcf fdceagb aebcdfg cfega
+cfbae efcad aed dgbeac ecfgda dcgef dbcgef dgceabf ad dgfa | eda fdegc baecdg agdf
+gdcabf gbda fecbd cefagb gfadc abdcefg dfgbc gb afcegd fbg | cfdega cfgbea fdecgab bg
+adfgbe egfb dabgcf gbcdfae abfgd eg ebcdga gdfae gea eadfc | egbadc gae gdfba bdcgaef
+ebdcga aefbg gf dabfge bcdgef bfg fadcgeb afdg aedgb fcbea | fgb bagde bdecga ebfag
+bdage gfbead fga fbagd beaf af aecdfg abgecd fcbgd dbacgef | bgafd bdgcae eagdcb afeb
+cfdaegb dacfe cbd acgfed gbcefd dfba cbeda abcfed db cgbea | bdcae dabf aefgdc bd
+dfgca dfaecbg cgedaf dcbgaf bg efabd daegbc gcbf gdbfa dgb | faebd gedacb fbgcad efdab
+db bgafce afbdcg bdgf dbgac deacg eadgcfb bdc gbcfa fbdeac | agfbcd cbdgaf agdfcb cbd
+dgbef egdfac gb agbf faegd badecfg ebg bdeagc ecdfb adgfbe | gfedb gfaebd gbe beg
+dcgbe gdac cbaedf decabg gec gedbfca aebcd bgfed cg fecabg | bdgeca dbgec agcbfe ecbdg
+cgdfbe fa abefd dbcef fcaedb fda aecf dfagceb dgbcfa eadbg | afbced fbcde af bcdaegf
+abegdc agfb efbcd gdcebfa gf acdefg gdfbe abdeg feg dagefb | gef bacdeg egf gfba
+cdeag fd bacgefd fedb fgd gfdebc cgfeab dcgef dgfabc gbfec | cdbgfe bfecg bgdfca bfgcde
+agbde gc bacfdg abegdc cgade cga ecgb edcabfg ebagdf cdefa | gbfacd gc cgeb fagedb
+cgbade fage ae agbfc eacbf dcefb egbcaf bcafdg fbecdga bae | ae eacbf ceabf eacgbf
+egb cfeba agfdb ebdcfg afbge fgacdb ebdfag eadg ge fbeagcd | abgef edfbcg eg ge
+cgdbefa bfeac bgcd bdagef fbcdga cbdaf cfedga bd fadcg fdb | febca dfeabcg cfeab fcabe
+gdbeca gfadcb ebfag cdaeb cgaedbf edgc bagec bcg cg aefcdb | cdeg eagdcb abfcgd degc
+fabegdc ba debfgc bfea cdeag ebagd gbdefa gba bdfge dagfbc | fdebag dfbegc ebafdg fgadbe
+dcaef dgcabf abced eabgfdc gbec gbedca abe gdcba be eagbdf | abdgc cbadge cgdfab abe
+efcadb fbdae fadbceg efbdga gdebc fecgad fecdb cf dcf facb | cdbeg cdbge dfc efgdba
+fcbad cae ea gdcabf gbfeac eafdc efdbgac cfegd befcda aedb | edabgfc gfecd acfegb cae
+gdbce efac acfgbde bac bfdage ca abdec bedaf bfcagd fbedac | ac acdbe ac adbgfec
+acfbged bgcdfa bdgcfe eagfd gacdeb ec ceba cadeg cbdga ced | ce aecdgb acdeg efdga
+afecb afcbd dgbc cdafg bdafeg edfbgac afgdec fbd bdagcf bd | bfd dgbc db bfd
+fgb dbgeac gbfdea egcba fbaecg faecbdg fb bcfe fcbga cdgaf | bcaeg bgaefd bf bfcga
+gcfb aefdb fgecda gbdce dgcbef dfebacg edbgca cf fec bdfec | efbad dbeaf cdgafe efcagd
+agedb eadfb fea cafbde egfcba fdec agbcdf fe cfbda bcefagd | bfeagc gbaed bacegfd dafbe
+ae adfbg bcagfd gafbed dgbae aecfgb age fegcbad deaf edgbc | egdab agbecf gbaecfd cgebd
+edbf bf gbf abdecfg bdgca fbgeac bdgfae dgcaef fdeag dfagb | bcgad egadf fb agbfed
+cgafd ge fgeacd dgbacf fadcegb aefbd gcef deagf dagecb dge | egd cfge efabd gde
+cbfadg gfdac defcag gcfb badce edabfg dgb gbdac gb dbceagf | adebcfg gdebcfa faegcbd bfgc
+aed abfgd eafbc fgde adbfcg badfe de dfcabeg debcga defagb | dbfae dbagfc acbef fgdabe
+degaf gdeafbc aedgfb ab bda eabdf caedfg fabg cgdeab efdcb | bad bgaf gdbaef abd
+dcfae aecg cg gcd cegfd fdgebca daefcg afcgdb fgbed cfeadb | gdc dbcafge bgfdace fbedg
+fabec dabefcg cbde bedaf adecfb de adbfg dea ebfcag fagdce | abedf gadcef dceb cbde
+dfcbg aegdcf eg ceadf cgfde cbdgea gadefcb egc bdface afge | efga geaf edgabc ge
+gafdce dgabcfe egbda cb bcd dfbgce fgecd cebf bgdec fcdgab | begcd eabgd dgfec dbgfce
+gfacebd feagd gdbafe bfed acebg dcgafe bf bgfea fab fcbadg | dfeb egdcaf aegdcf fegad
+ca dgcbfa cda afegbdc baced fabedc bgadef cbdeg adebf faec | gefdba cdgfab fdebca afgbdce
+dgebc eabgc bgaedc cae dgea bdgeafc ecfadb ea cfbgde fgbac | bfacg ebagc egacdb faecbd
+abed cafdgb ebg geafdb bdfga ebfag dfbgce beacfdg afgec be | bfgeda egbaf ebg bfage
+gbeacd feagdc bdcge cef cbefgad dfbc begfcd egbcf fc gebfa | gebfdca acdefg fegdcb gbdeac
+afdecg gcaf adg eadbcg fbdeg cebdfa daefg dcafe ag fbaedgc | fgbde facg dga ga
+be fdagb agbed abgedc dceb adgec efcbdag fdceag bge abegcf | bfgeac eb bafdg cbed
+begcdf bafgec deac cgdba gcbde ca gfcdeab cab gbfda edgbca | beagdc eagcbf agcedbf bdgac
+egdac bgcedf cdgafb bedgaf bgced bc defbg bcg fcbe cgfbdea | bc cbfgde gabfedc bcg
+dbecg acbd ca becgdf ace bfgcae afedg gcdefba cdage adcbge | caegbd cbgfdea deacg geafd
+afgecdb cadbf cdgba egcad gdcafe gebd geabcd bg cgb ceafgb | dbeg eacfgdb cfaegb cgbda
+ace cbag abedf acgdfe afgecbd bdfcge gfbec acbgef cfeab ca | cbedgf cdbfeg dfeacbg fbaed
+ecdbf geadbcf dc ecafbd gafbce gbfed bdc cfad bgcade cfabe | dfebc dcb acfgeb gbfeca
+gae aecbf gdbafec cdag egbdfc gdfec gbaefd cegfa ga fecdga | fdbgea ag dcgef gfedc
+egda efa dcgafb dacbfe gfcda ea fcebg cgaef facdbge edcafg | abdcfg fdegcab eagcfdb fcabdge
+gfdeca fegca ebadfc adgcf fgde dgfaecb fda abgefc agcbd fd | efdg daf dfcage ecfgbad
+acedfg dbcage edagbcf aefcb dfceab fbed dbaec abfcg fea ef | edafcg fae bcgdae acedb
+gebafc cdfb gdefab db bdgfec gebcf gdcebfa cbged cdeag bgd | gbd fegcdb bd gafbed
+cagbdf adbfc edgfb bgafecd dafgec cbaedf cbae efa ae eabdf | fcdega gaecfd cadfb acbfd
+aegbf bedagf aecgf dbgf dgbeac becfad badfe gb dbaefcg gab | gfbd bdcfae gbacedf ecgaf
+db gdb bcgafe fdega gedbac bgdfcae befgc gcbfed dgbfe fcbd | ebfgac bdcf gadef bgd
+dcf dgcbe dcfge feda bgfacd df fegdca gfeca cbegfad gfaebc | fgbcda bcdge dfc gcefa
+decagb gfdcb abfegc dfbaegc fca dgacf defa fcgdea fa edgca | bdaceg ecgad bagecf edaf
+gefabc abegc facebgd adgcb dag egcd gd dacbf acgbed dabgfe | cgde eagbc dfbgae agcbd
+cadfb dfebcg gdfbc cgb fegb fadceg gb bgacde fcgedab ecfdg | bgefcd fgcaedb degfcb fcdbg
+gabcf fdbac aefgb bfdeag gecafdb geca gbc cfgabe gcefdb cg | cgbaf feabdg geafb gfbea
+adefg geafdcb bgd gbcfe fdbeg bd bgdcae bgcefa fegdcb cfdb | cfdb bd dfbc abfceg
+aed aecfbdg geafc cdeaf efdcb bcgedf bdaf da gbdcae beacfd | ecafd ade cdfae bedcf

day8/src/main.rs

@@ -0,0 +1,106 @@
+use std::{fs, env, vec, collections::BTreeMap};
+
+fn read_input(path: &str) -> String {
+    return fs::read_to_string(path).expect("Cannot read file.");
+}
+
+fn parse_input(s: &str) -> Vec<(Vec<&str>, Vec<&str>)> {
+    return s.lines()
+        .filter_map(|l| l.split_once(" | "))
+        .map(|t| (t.0.split_whitespace().collect(), t.1.split_whitespace().collect()))
+        .collect();
+}
+
+fn find_easy_numbers(v: &Vec<(Vec<&str>, Vec<&str>)>, s: &Vec<Vec<char>>)  -> i32 {
+    let d = vec![s[1].len(), s[4].len(), s[7].len(), s[8].len()];
+    let mut c = 0;
+    for t in v {
+        for l in t.1.clone() {
+            if d.contains(&l.len()) {
+                c += 1;
+            }
+        }
+    }
+    return c;
+}
+
+fn learn_decode_table(c: &(Vec<&str>, Vec<&str>)) -> BTreeMap<char, char> {
+    let mut d: BTreeMap<char, char> = BTreeMap::new();
+    let mut o: BTreeMap<char, i32> = BTreeMap::new();
+    for i in c.0.clone() {
+        for e in i.chars() { o.insert(e, *o.get(&e).unwrap_or(&0) + 1); }
+    }
+    for i in o.clone() {
+        match i.1 {
+            4 => { d.insert(i.0, 'e'); }
+            6 => { d.insert(i.0, 'b'); }
+            9 => { d.insert(i.0, 'f'); }
+            _ => {}
+        }
+    }
+    let mut v = c.0.clone();
+    v.sort_by(|a,b| a.len().cmp(&b.len()));
+    for e in v.clone() {
+        if e.len() == 2 {
+            for f in e.chars() {
+                if !d.contains_key(&f) { d.insert(f, 'c'); }
+            }
+        } else if e.len() == 3 {
+            for f in e.chars() {
+                if !d.contains_key(&f) { d.insert(f, 'a'); }
+            }
+        } else if e.len() == 4 {
+            for f in e.chars() {
+                if !d.contains_key(&f) { d.insert(f, 'd'); }
+            }
+        } else if e.len() == 7 {
+            for f in e.chars() {
+                if !d.contains_key(&f) { d.insert(f, 'g'); }
+            }
+        }
+    }
+    return d;
+}
+
+fn decode_number(c: &(Vec<&str>, Vec<&str>), s: &Vec<Vec<char>>) -> i32 {
+    let d_table = learn_decode_table(c);
+    let mut decoded = 0;
+    for e in c.1.clone() {
+        let mut d: Vec<char> = vec![];
+        for l in e.chars() { d.push(*d_table.get(&l).unwrap()); }
+        d.sort();
+        let n = s.iter().position(|x| x.eq(&d)).unwrap() as i32;
+        decoded = decoded * 10 + n;
+    }
+    return decoded;
+}
+
+fn decode_and_sum(c: &Vec<(Vec<&str>, Vec<&str>)>, s: &Vec<Vec<char>>) -> i32 {
+    let mut i = 0;
+    for e in c { i += decode_number(e, s); }
+    return i;
+}
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    let mut segs = vec![];
+    segs.push(vec!['a', 'b', 'c',      'e', 'f', 'g']); // 0
+    segs.push(vec![          'c',           'f'     ]); // 1
+    segs.push(vec!['a',      'c', 'd', 'e',      'g']); // 2
+    segs.push(vec!['a',      'c', 'd',      'f', 'g']); // 3
+    segs.push(vec![     'b', 'c', 'd',      'f'     ]); // 4
+    segs.push(vec!['a', 'b',      'd',      'f', 'g']); // 5
+    segs.push(vec!['a', 'b',      'd', 'e', 'f', 'g']); // 6
+    segs.push(vec!['a',      'c',           'f'     ]); // 7
+    segs.push(vec!['a', 'b', 'c', 'd', 'e', 'f', 'g']); // 8
+    segs.push(vec!['a', 'b', 'c', 'd',      'f', 'g']); // 9
+
+    for arg in args.iter().skip(1) {
+        let input = read_input(&arg);
+        let vec_in = parse_input(&input);
+        println!("[{}]", &arg);
+        println!("\t[Part 1] => Answer is '{}'.", find_easy_numbers(&vec_in, &segs));
+        println!("\t[Part 2] => Answer is '{}'.", decode_and_sum(&vec_in, &segs));
+    }
+}
+