diff options
Diffstat (limited to '2021')
| -rw-r--r-- | 2021/8.hs | 57 | ||||
| -rw-r--r-- | 2021/8.in | 200 | ||||
| -rw-r--r-- | 2021/8.in.sample | 10 | ||||
| -rw-r--r-- | 2021/Util.hs | 2 |
4 files changed, 268 insertions, 1 deletions
diff --git a/2021/8.hs b/2021/8.hs new file mode 100644 index 0000000..7876aef --- /dev/null +++ b/2021/8.hs @@ -0,0 +1,57 @@ +module Main where + +import qualified Data.Array as A +import Data.List +import Data.Maybe + +import Input +import Util + + +-- Mapping from character (a..g) to position (0..6). +-- 00 +-- 1 2 +-- 33 +-- 4 5 +-- 66 +type Mapping = A.Array Char Int + +-- Mappings from position (0..6) to whether that component is on. +type Display = A.Array Int Bool + +digits :: [Display] +digits = [dig 1 1 1 0 1 1 1 + ,dig 0 0 1 0 0 1 0 + ,dig 1 0 1 1 1 0 1 + ,dig 1 0 1 1 0 1 1 + ,dig 0 1 1 1 0 1 0 + ,dig 1 1 0 1 0 1 1 + ,dig 1 1 0 1 1 1 1 + ,dig 1 0 1 0 0 1 0 + ,dig 1 1 1 1 1 1 1 + ,dig 1 1 1 1 0 1 1] + where dig a b c d e f g = A.listArray (0, 6) (map toEnum [a, b, c, d, e, f, g]) + +render :: [Char] -> Mapping -> Display +render cs mp = A.accumArray (flip const) False (0, 6) [(mp A.! c, True) | c <- cs] + +whichDigit :: [Char] -> Mapping -> Maybe Int +whichDigit cs mp = findIndex (== render cs mp) digits + +allMappings :: [Mapping] +allMappings = map (A.listArray ('a', 'g')) (permutations [0..6]) + +verifyMapping :: [[Char]] -> Mapping -> Bool +verifyMapping ws mp = isJust (traverse (`whichDigit` mp) ws) + +observeToMapping :: [[Char]] -> Mapping +observeToMapping ws = fromJust (find (verifyMapping ws) allMappings) + +decode :: Mapping -> [[Char]] -> Int +decode mp ws = sum (zipWith (*) [1000,100,10,1] (fromJust (traverse (`whichDigit` mp) ws))) + +main :: IO () +main = do + inp <- map (\l -> let a :| b:_ = splitOn (== '|') l in (words a, words b)) <$> getInput 8 + print (sum [length (filter ((`elem` [2,3,4,7]) . length) ws) | ws <- map snd inp]) + print (sum [decode (observeToMapping obs) ws | (obs, ws) <- inp]) diff --git a/2021/8.in b/2021/8.in new file mode 100644 index 0000000..4d2de7b --- /dev/null +++ b/2021/8.in @@ -0,0 +1,200 @@ +gabfed acbdfg cd gebcd gdfecb bgfdcae ecdf dcb gdbfe gaceb | dcb dgfceab cbfdeg edcf +cdbeagf df bfcgd bfed cfd fgcbed gcedb cfeadg cegabd fbacg | acbfedg acbfg dfcaeg bfgca +ag agf fbaceg beag acgfe efdcgba afcgbd afced gfecbd bcfge | bcfeg bcdgfae fga egacf +gdfcea edb acefgbd bgcad gabed cdbfea adgef ebgf dabfge be | gdbca be egfacdb adcefbg +dbefg ba edfca fdebga abf ageb fdcagb fbdae cfeagbd dfbcge | ecfda bfa fdgeab fadbcg +cfbage be daecf cedbfag dcafeb eabd ebc dcefb dcgbf gefdca | deafc fbdec gecdfa dfgcb +bdcaeg gde fdeb gadfe ed gfdca febag begadf aedgcbf gcfeba | fbgecad egbcafd fdcag ed +cg gbfad gebc fbdec bdfcg efbgcd efbdca cgfdabe cfg adgfec | befdcag dcbfg bcedf cfg +gefc faedgc adegf fea gcbade fe dgafb fdecab cadeg cfaedgb | dbafg gdebca dbcaeg bdacfe +gdfebc abcefd bcged dgcf efdgb gbfcaed adcgbe bfgae efd df | agfbe cgebd agcedb feagb +fgadec egbf fegdab ef agecdfb baecd fbdae bfadg gdfacb dfe | cebda ebcad dfe efd +acfdge cebgf fbag aegbcf gfc cebgd fg abdcef dcfabeg bcfae | gfba eadbfc efcabg dcgaef +cdfeba bcdage gbcef cdbaf cfadebg dcgbf fgda dg bgfcad dcg | edafgcb gebdca gd cegbdfa +cb cebadf ecbadgf dbgfa cfb cgefd dcfagb dfbcg fdebag acgb | decfg dbgcf fcb adefcb +baedg eafdgb af gfcbd abf bfagd egaf gbecdfa eadcgb dcfbea | gbedfca af gcfbd baf +cg cag gacbe eabgfdc egcbda dgce gdabfe begad agdcfb ceabf | gbfcad bgaced febdag debgca +dabg fdgbc efabc ag afgcbd bcfag fag dbfgaec cfegdb facdge | cfagb fcdbga gaf fag +feabd cgfadbe gdebcf adecb bf fdb abfg dgaefc gefad badefg | bedgacf bfag gdeaf gafb +edfcb becgf eg cbagdfe gfcab egf febcda gfeabd dfebcg cegd | gef ebfdgc gbecf efg +dcgbae fegbac ecg abgcdf bgdca eg gbed cegfdba daecg dfcea | dbge decfa gecad cdfabg +bdg cabdge edagb cgde bgaedcf bdace gbacdf egfab bfdeac dg | acedb gbdeca daebc gdec +gcdab fbacdg fbca edcbag fb cabdgef cfbdg cfedg fgb fabdeg | bafc bacf gfbaedc cgedab +gacedf fcadg agd dgbfea ad gcabf acbfedg fgdec edca cgdefb | adgfc deagcf ecgafd fbcag +defgba cedagb cbgadfe gfcdae faeb fbegd feg geadb dbcgf ef | cbfdg feg ef gef +abgdef fgcbda cafbd gbfc bf bacde bfadegc degafc cgadf fba | bf bcgf ceadfg decba +bfgcad efcag cgdaf dfaegc cgadeb eg egdf gae dfcbgae cabef | fabec feadgcb edcbag ega +bdfea fcab ac eadbcf egdabc bdagfe dcegf dfaec ace gcbafed | egbdaf ca bcaf dafbe +ba gafb adbeg acdfeg dfgae begdc eab dgacfbe eagfbd ebfdac | dgcbe eabcdf eba bcafgde +gfaceb dgfae ca dcfgab dgbcfe fcage bgecf fgacedb cbae fca | bgcfda cafgeb afegc fgace +gfcda egfcda cdabeg gabfe db dfbc dbg bcfadg dfabg bfdagce | abgced db dfbc bd +gdafce bafde cbdfa fea bcgdae bgacfde adbefg bedag efbg ef | ebcgafd gdafbe cegabdf cgfaebd +adfgc bcge acdfbeg bac cb cgfab ebfga adfbeg fcgeba dbcfea | abfgc dgbafe fcdag fcagd +ce gdbfcae bcgadf cegfad facbe bdce bdcfa aec aefgb afecdb | fedbac egdfabc bdaecfg eabdfgc +bfeda fa geafbd bdgef fda cegbdf bgdface gaef cebad cgadfb | adegbcf efag dfeabcg edbgcf +def gcbfd ed ecgbdfa gdefc gbed cadebf cgfae cgdfbe fadcgb | ed fed cbfgda fbceagd +gec agced agef edbca cfdbga dacegf ge baedcgf cafgd cgdefb | fbgcda bcgaedf cgead gce +eabcgd gecbadf bge ge acgbd egad fagcbe fcdbe ebcdg dcgbfa | cebdf geb fedbc geb +gaecfd gaf cfge cbefad fgcdaeb bgefda dbgac dacef cdfga fg | deafcb aedcbgf fg fdcae +acbgef dcbgaf caegfdb be afbcg gafbe bfe ebcfad gbce dfega | bfe decfab fcabde cbegdaf +eafcdg dbgac efgd fcdae eg gadce ecbagf eag efdcba becfagd | gdfe ge acfed aebcfdg +dacegf cbae ac gfbdaec agc gbdfc gbcaed bgead acbgd efdgab | ca ac ac gca +fcd cafe bcade efdcb fc bedfca fgbcdae egbfd cbadfg gadbec | bdgef cf aecf cdf +abgcf bcgafd ge abgdecf edcfa cge cgafe gbae bgcafe ecbfgd | gabe adcbgf gce fcabg +ebfcgd bdeagfc dgbefa fegcd fa ceaf fga dbgca adcfg adecgf | gfceda acgbd af ecgdbf +gabec cgefda efbacd egabfcd bf fba agdfc bfdg bcgfa bdgcaf | afbgc afcdbg acbgf ebcag +begdc gecfd cbgfad cfgda egabcdf fe aefc eadgbf cgefad dfe | afce fe cefa egdbc +efdcag bgcad dbeg dbfgaec ebadc fgabc gd aedbcf dcg cbadge | gd ceabd agbdec gebd +aegb bfcag agcbfe agfcbed bcdfa fagce gcb gb bcfdeg dagcef | bcfedg bgae acefgd cefga +dcfagbe adg ebacgf dfbeag ad fcagd abdc afcgbd cfbag cfedg | dfabgce da cafgbe ad +ead degcb eacgf fbecda adbg febdcag ad bcgdae cgdebf egacd | cefag cdgae fbdgec agcfe +cgbaef bagecfd adbgcf adfeg faedcb fcabe cegfa bgce fcg cg | gacef bgface bdgafc fbaec +acfgd gacbfd bdegfac fcgedb da cadb efgdab agefc fdgcb adg | adg ad aecgf bcgfd +fgdcea fbacdeg cefda dag fedg dg gacbed fbagc gfcad fcedba | gd dcfebag cdafbge gebfdac +bcafeg gaefcd cae gcade ecdf ce dgafc degba gabfdce gbafcd | bafgec gacfdb gdcebaf cdfgab +fcgb afgdec bdecf fg dfbaec cgbfdea dcfgeb dfg ebfgd abdeg | dbega eadcgf febdc cbdgeaf +adcf agdecf dgeac gfcdbe faceg gfceba begdcaf gcd daebg cd | fadc dgcefa ecgdbf acegf +gedfa gbdea bfgade ebcfdg gcedab eabgcdf ef fge bfae cfdag | baef gfe egf degcafb +aedbcf beadg dcgfbea gaecb aedgcf bagefd bed fdgb db degaf | bgfd fegadb bgdea acbfed +fbgca da defbga cebdg bdcga efcbag fgdebca bda fcad bafcdg | ad gcbaf dabgc gbedc +cgeb cfgda eg fcbedga acfebd badegf gea daecbg eabdc caged | ebdac gae bceda dcageb +ge bcdfga cbaedgf gfe gcdfb efgbda febgcd cgfbe gdec afbec | dcge cdge ecdg gbdcf +dcabe ebfgd gda dcfaegb afecdg dageb gbac ag dbcgea acefdb | gda dag gbeacdf ag +gadf fd baedgc gdcba efcab fdb fbdceg gbfcad adbfc daebcfg | dfb fgda bdf cdbgea +bcdfge dbfaec gb bcdef gdeb gcb bfcage fdcgb gafbecd dcgaf | bg bgcdef dbge befgdc +acdb gecbdf cgafb dgbfae dcbafg ab dbgcf adbfegc fab acegf | dcbfg bdca cbgdf dgfcb +acbdfe cabe acdbf badcefg cdbgf ba afb gfcade gedafb fcaed | bfa gbdaecf ba adecf +ae bdafc bceaf gdbafec bfgec eab dabfge fgbdca daecbf eacd | ae becgf cead bfcea +bcged dec bfceg acbd faecgdb daebg dacbge dfaebg gfadce cd | ecd dc gfcbe adbfeg +ecadfg bfdge fe fde bagcfd fcbe bgfdc geabd bfcegd dgbcaef | fcadgb bgade fe fegadc +degabf face fcd cf bfdegc adcefg cdgfa cdagebf afdeg bcgda | fcdebga fc caegdfb feadg +dfage dfec df gabced eacfdg fdg fgbecad cadeg gfcabd aefgb | cdef fegdac fd agfeb +da bfgac adf gefdc cabfgd bgfeac afebgd cgfaebd cgdaf adbc | fda dfgce gfabce faedbg +dgfba gadefc acegdfb bgd bg cgba facdg bgdfca febdgc eadbf | gdb dagecf fbdgac dafgb +ab gecaf ebfadcg bagfc cbgfd dcfgea cab efabcd eagbcf abeg | acb fbdeac abc agfebc +gc eagfb gec aegcbd acfed gdbceaf cgfea dcgf cgefad cdbfea | dfgc gefba cg aedcfb +deafc gbcf bfdeg dcafgeb efdcb acbged fgedcb cbe bc gefbda | cdfea fbgc fedcb ebfcdg +cd dfaeg dgceba gdcebfa gcfde gbdfce dcg fbgce ceabfg bdcf | cd dc fcgbe deafg +fd cfeab bdecf abdgec fdbecg dbfg def faegdc fagcdbe bcged | edcgb fd fegbdac dcebf +gcfbd fa fbadc abgedc cadfbeg fda afbe bcead dcafge ebfdca | fdgace gefadbc acbfd befa +bgcedaf afbegc eg dfbeac ceg fgcdae efcda ecgdf gcfbd daeg | decfa deag gcdfe ge +cgabdf af abfe agedbc ecfdg bgdea fagbecd fadbge dfa dgeaf | fa dbagce af af +egdabfc dgbac gefdca bcef gcfbed cf dbgef dcfgb fdc afbedg | becf gdeabfc dbfgcea efbgd +feb abegfd agfedc cbfge fagec bf gcbde afcb aefgbc gfbecda | bcfa bf fb egfacb +fage cgbfd gcfde gedfca fce fe adcge dafbceg aecdbg cdebfa | fgae gaef cfeabd cfdbg +gdcfe ed eagdfb dcfgbe bagcefd ebcd fdbgc deg gecaf gbdafc | gebdcf efgdba gcfebd de +debfga dcbe bcaeg aecbgf acedg ed dbgcae dgecfba cagdf ade | geacd ecbga de becadg +abegc fe efbdca aecfg adfgce efa bgafcd gdef gfadcbe fdcga | ef dcgbeaf fgcad faceg +adgfeb fbcge fbacgd acb abdcef ca ebcaf faedb caed gcbeadf | afecb acbdfe efadgb cbgfead +cefa daefbc fdecb aefdb gfbceda bgdafc debfga bgedc fc cbf | bfc ecfdba adefb ecaf +debc dfbage caedg cafedgb fbacg gbd agbdc gdafec db deagbc | bd bdg befdag dcfage +gacefb edbac gdef gfbeacd gfecb gacbdf fd dcfeb bgefcd cfd | cgbedaf gdfe gecfb cfd +geacd eb ebg gfbcade egfcdb daeb dfacge eabcg fabcg cdabeg | gdcaef ebg beg daeb +gadbfce gfda abcgfe gd bacgf abdce dgb dacfbg dbagc fbegdc | ecbafg bfgac gcbfa cbgfde +aedgcb cdaef efg egcba fcage fgbeac daefgb bfgc gf gcbeadf | fecga edagbc gf bdefagc +db cgebd efbgdc egfcda ebdf gecfd fdebcag dbc abfdcg gabce | db cedgbf aecfgd debf +ecfadg efbagc feg cgde fbcdag ge gadef bcgadfe cafgd aefbd | fbgcae afcdebg edfab eg +gebfad bgeca fdce bdgceaf cd debgc bcd dbgfe bdfcag bfgdec | abgec cbage facdgb dc +dbfgcea eacg edacf dfgec bgdcfa daefb fedbcg cad ca eacdfg | cad ebgdcaf cage eafdc +decafg abdcg bgdcfae fa daf bedfcg cfdba cfdaeb abef fbecd | dbafgce afd fa caedfg +dfcbgae fgecb abegdc beafdg ecd efdgc cfeagd cdfa eadgf cd | egdaf cdfa decgaf cdaf +gbafed cegfadb cage efcabg cgabf gfebc dacfb bdefcg ag gaf | fgcab fbdgce bgacf agbfcde +badgc bea be adcfbe dgbecaf ecgb cdgbfa dbega gdfae daegcb | cebg adgcbf bcdga agbcd +gbaced fadcb ag dfebgca gac bdgfec acgbd gdceb aegd gcbefa | adge gaed gca ecbdg +bgdce gbdcfe ge badec gacfbd egb fdcbg fgaecbd fcbeag dfge | gfed cefgbda ebdgc gcbdf +aedfc cgde cgfaed bgfad ge bcfaed ecgabf gae egbfacd geadf | fdeag febcda cedg cafdbe +agf fegad fdgcae fcead fg abcfed cfeg agdbe fcbdga degbfac | adebg ecfda afg fg +bdfegc aefg bacged fegdbac fgcad cbfad ag agd fegdca fcedg | feabcdg bdcefg gbfacde edgfac +aec cefbag dabfgce dgcae degacb ae bgced dbea fedcgb fdacg | ecgbda ebcgd daceg cedgb +dcbfgea decba fadegb ebfag cef fagbec fc bcgf ecdgfa febca | bgeadf fgebda gcdafe abcde +bfcgd degfbac afebc def cfdega ebgd ed bfced cedbgf fdcgba | dgbcef fdcbe gafcdb gbfdec +fge abfcdeg dfega fg eabgd fdgc fgaedc ecadf becgaf befcda | edgaf fcdg dbfcea bcefdga +bgcafe bdfecg acedf dcfbe agcdfb be bfcegad fbe ebgd gcdbf | fbe feb bedcgfa fdbce +be cabdfe adgce fbcda cfeb aeb acfbegd abgfed ebdca adgbcf | egadc eb fcadeb bcedaf +gfbea ecbf gcefa ec cdfag fdgeba aec eagbcd bcfgae afdgcbe | gbadcef afcbegd acgef dfgbea +gb dgbf cegfda bfcgae dceba afcgd cagbd afdebgc gcbdfa cbg | bg fbdg cbg bacgfe +efgdcb cgefabd fc abedc bgefd deagfc cbfed cbfg ebafdg fce | febdc fgedcab bcdae fdcbe +cafbdg gdebc beadf dca acebd ac fgdeba ecfabd gdefcab ceaf | efdcgab gabefd dcgbe gdecb +fbd adgbe fegcb afdcbg dcfgbea egfdb fdce fd fdbgec caefbg | edfc afbdcg abfegc fdbeg +cbgdaef eabdg afdb cbdeag ecfgb fd edfgba fcdage efbdg def | dgfcae dgebf bcadge fd +eb dfcge deb cbgdfa abef baefdg abdgf fbdeg fbcgade agbcde | afeb dfgba agebcd dbeagc +gcbde eadfbc gbeda edcbfg ae aedbcg afcgbed afgbd dae agce | cbegd bafdg bdega gbadf +faegc adbcfg bgfaec edgcb geadc dafgebc ad dfae ecfdga cad | acd da fcbgea gdceb +ga daecfb afgbdc dcaef gcfbe gedafbc edafgc cgafe agf gaed | ga fcbadge fdebgac egacf +cdgfab gaedb egfbc ebdfag dgc dc ecad eacgdb dfegcab bcdge | efgbc dc gcd gcebad +edcfg befacd cdgae bcgfed dae gfad agebc bdcfeag da fcgeda | fgad edbcaf fcadeg ceagb +ba afegcd edcfb cba baefcg fgba acdgbe bgafedc ebacf ecfag | gcadfe cfdbe cgaebd beafcg +cegfa edcb be cafeb fagdbec fbecda cdfab dagbcf dgeabf feb | aebdfgc eb bdec cbaef +efdba bacde dce dc beagc dcfb dagbef adgfce afedbc dgafebc | dce deacbf dbaec dcbf +fcdebg ce caef dabef eacbd gaebcfd ecb dbfcae cdgab defgab | dabgc ceb cafe bfdea +ebdcagf gefcb bafe aecgdb be fgeac geadcf cbe dcgfb gbacfe | bce be gdfcb eb +bfgead deacb fae fbcdag fe defgbac baefd bgfda gdef bacgef | aef fdgab fgcabed dabgcfe +bg fgadec debg fbg cadfb dgafebc eagfd dabfg fbegad gfecba | bacfge egcabf gafdb dacgfe +bgdce ecba abcdfg gbe bafged cfdeg eb becfdag bgadce cabdg | egb bace fedgc facdegb +gbade agf efac fgdaecb gcfabd bfecg bcfgea gdbfce fa gfaeb | gdfeabc febagc fa afce +bfcegd fbdeag ga dcabeg egfa dagfb efdgb dbcagef dag fcbad | bcfgaed edcbgf dga dacgeb +bdcfga db gadcfe bgdcf gfceb cadbge adfb cbgdfae bgd dfagc | gefbc dgfaec cgfeb db +degabf gbea ecfbd gdfbac aed fcegda gdbaf ebfda ae edfabcg | bcfed ae dgfecba dgcfae +begaf agdbfc fagcb be edgfbca efcb afgde bae gfbcae agcedb | be efbc afbgdc begdac +afebg ecfab becfd gbaefc cgfa ac edacgb bedgfa febcgda aec | fecbd cbfeag efabg gbdeaf +cfdage ef dceagb feda fce ecadgfb ecgad gcfde gfbdc ecfbga | dbfgc efad fead bgdcaef +agdbef fb bcedfag cgdba bdegcf fgead fbd gfadce befa bfadg | dgabc fb dfb bf +cfebgd cabdf dgcaeb egcbaf ae cea eadbc fedbagc aedg cedgb | gecdb ace aec ae +cbe bgaced cgfba baef fgabcd fgcde fgabce eb efbcgda bgfec | abgfdec bgafc badefcg ebc +ecagb dfce cf fbc dcagbf befca acedfb gdeacfb eadbf dgafeb | fedgba dfcabe cegab ecagb +fa agbdc cgdaf aedf efgcd efdacgb gbcfde afg acdgfe gfabce | fa gaf fead fgecd +egacb cgbdaef ce bec gbafc dgcfab egbda dfebac fceg ebacfg | gbcea acbdef caebgf efdgcab +dafeg cd febadg acefb agcd bfcgdea dcfgae ecdfa ecd dbfegc | becaf dgac becaf egcdfa +badc bc cfaed ceb dbgfeac gadefc fgeab fgbedc acbfde abcfe | afegb efbdca cdfbea bdegcf +bafedg dgbceaf gcdef dfeabc abfdgc gcab cfb cdfgb dgabf cb | bc cb fgdba bcf +dfabg dfgbca cd bagdefc afbce gdacef bdcg dca bafcd efadgb | dca bcadf bdgfca adfecg +acgbd acfgde fbgedc fbgcdae fdcabe fdcge fcb fb fbge cdbfg | cbf gfdec fbc acfdeg +eafbdg eadbgc bde gcdbaef gdceaf ecdag fgecb cgbed bd adbc | aecgdfb bd cgaed dbe +dg fcaebg gbeaf gcdfea fgd fgdab cfabd ebdg fcdgbae gbedaf | fagbce dcegaf afecbg cegbfa +gbd efcagd gb bgeda fbade bfecgd eabdgc daceg gfecbda acbg | egbfcd fegcbd egdba aedgc +bag efbgad ecgdab edabc adbcg agec ag feabdc dgfcb efbgacd | febdcag cgdfb agb gdcab +fegdabc becafd dcefa eagdc bcfae fd fde dafb febcag befcgd | cbdfea fbda edf fed +gdcbf cafbeg bgdface ad eadf eafbdg fdgab gdbcea egbfa dba | gbfeac ebagf bdacge gbecad +ebfcag ecfgadb efbagd egb dbfagc cbfe be agebc bfacg agdce | beg becf gcbaf bafgc +bgedca eacgf dec afebcd dc bedag adgbef ebcgdfa dgbc cdgea | agbdfe ebagd dce bgdc +adecgb bdeaf gdefa gdbfeca fgbe aedcbf egd eg cfdga afdbge | dcfeabg cfgad gefad gfbaed +cafe ce abecdg edc bdcfg afcdgeb beagfd ecdfb bfcdea fdeba | ce face ce ecd +gf efadc gafcde cfagd cgf deafbc dgef bcefag gbacd dagbefc | efacd fgc cedaf agdcf +dgfebc bad ba eadgb agecdb gadfe abcg cgfaedb gbecd ebcdfa | ab cfegbd ebdgac bcfegd +baegf gdafe gedb edafgb gfaecd ceabfd eb abe gedbacf fagcb | fabgc fgdae egfad eb +dbfeac bcegaf cabfdg fbcga abgedcf dbgc aegfd db fbd afbgd | dcbg afgdcb dcbafe dabgf +df dfa fbdae becda agbfe gfabde gcefad gdfb fgcbea abfegdc | daf dgfb fdgb aebcd +adebf ec cfeda aec gefdca gdcaf dgfaecb fgdbac cegf bdcega | ecgf cae faedc edbgcaf +de efcdgab gcdabf deaf gbfad bdecgf dbe bgaec gabed ebdgfa | cfdbgae bcgfda de bfadg +gdefca fedacbg fc abecgd bafgd febdca cbaed acdbf ebfc dfc | fbcad dfbacge baedgfc feagdbc +gfdce fecdgb ac daceg fdac beafcg ebcfdga gbdae agc fgceda | cga efdgc gaecdf bcgfea +agebdfc ebgfad deacb eab edgfca cbfa afced ba cfdeab ebdgc | ab bdcge aecfd aeb +gbaf gadecbf gbcad bdcfa gcfbad bf cfade bfd dagcbe cbgdfe | dbafc bf fbacd bfacd +dbegc dfecbg cfd geadcb cgfe gbdaf fc abefcd aefgdcb fdgcb | cdgbf cf fadbg dfc +gdfea cgbfd bfca cedbga bfadcge fecdbg cgfabd ab bgafd dba | fecdagb agdcbf bgcedf cfebgd +gbacfd de ecgbfad gedabf ecadbg dea dagcb badec edgc efabc | ed ed gdce gdfeba +fgdeb bgc gcdaf daegbf aegfcbd baefcg gcdfbe bc fgbdc cedb | gacfd gcadf gbfdc gcdaf +daefbcg de cgadfb aebfg cfeadg edac efagd afdgc dfe ecfbdg | geafb cdgaf 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dfecb | acbdgef dcefb dbfaec fadgb +cdb defc abgfc faegbd dbacfge cdbfea gbceda dc bafcd afbde | fadecbg cd cd fbadc +dgfce eafdcgb fcgae gabdcf gde ed cbgfd baecdg efbd cdgebf | ed baegfcd dfgcb dgbcf +fgedba fageb cgeabf cabgf fgc fcae aebfdgc fc badgc decgbf | cfg abgfc cfbga fc +abegd cdg gfbadce debgc cg cdfgeb ecfdba cdbgaf bcedf egcf | gfec egcdb fceg ecfg +gefcb eacfg dcebgf ag fceda cgdfab cga gbea gbecfda fegcab | ga egba gdafbec cafeg +efgdacb gfaed gfeba faegcd deabgc debafg ba fbceg dbfa agb | egfcb begfacd gab cfbaegd +abgcfde dgebf decfb efg fabedc eg gebc cgfebd faegdc fdgab | bdefc cegb fbedg eg +ebacdg dcbge cgab gc dfbgae adcfeg edbcf gcd beadg bfcdgea | acbgde gc gc ecbgd +af acbegd fadc bfdge gedfa gebcaf aef baecfgd cegda cegdfa | dgeac cagbef cdgfeba dfegb +cgdbef dcebf cdgeaf egcfabd bfge ebfcad fdgbc fg dfg adgcb | ecfdb fgeb fg gf +decfb bc gfedc fcagbd bgec ecgdabf degfcb ebafd afcdeg bcd | aefbd fdceg dcb efgcbd diff --git a/2021/8.in.sample b/2021/8.in.sample new file mode 100644 index 0000000..c9f629b --- /dev/null +++ b/2021/8.in.sample @@ -0,0 +1,10 @@ +be cfbegad cbdgef fgaecd cgeb fdcge agebfd fecdb fabcd edb | fdgacbe cefdb cefbgd gcbe +edbfga begcd cbg gc gcadebf fbgde acbgfd abcde gfcbed gfec | fcgedb cgb dgebacf gc +fgaebd cg bdaec gdafb agbcfd gdcbef bgcad gfac gcb cdgabef | cg cg fdcagb cbg +fbegcd cbd adcefb dageb afcb bc aefdc ecdab fgdeca fcdbega | efabcd cedba gadfec cb +aecbfdg fbg gf bafeg dbefa fcge gcbea fcaegb dgceab fcbdga | gecf egdcabf bgf bfgea +fgeab ca afcebg bdacfeg cfaedg gcfdb baec bfadeg bafgc acf | gebdcfa ecba ca fadegcb +dbcfg fgd bdegcaf fgec aegbdf ecdfab fbedc dacgb gdcebf gf | cefg dcbef fcge gbcadfe +bdfegc cbegaf gecbf dfcage bdacg ed bedf ced adcbefg gebcd | ed bcgafe cdgba cbgef +egadfb cdbfeg cegd fecab cgb gbdefca cg fgcdab egfdb bfceg | gbdfcae bgc cg cgb +gcafb gcf dcaebfg ecagb gf abcdeg gaef cafbge fdbac fegbdc | fgae cfgab fg bagce diff --git a/2021/Util.hs b/2021/Util.hs index f1e6046..f021a88 100644 --- a/2021/Util.hs +++ b/2021/Util.hs @@ -1,4 +1,4 @@ -module Util (module Util, toList) where +module Util (module Util, toList, NonEmpty(..)) where import Data.Foldable (toList) import Data.List |