From 25cf8e37b93a1298b0b451a5c51f6fc03c11d1fc Mon Sep 17 00:00:00 2001 From: Blizzard Finnegan Date: Wed, 8 Dec 2021 22:32:06 -0500 Subject: [PATCH] Import Day 8 (part 1) --- day8/data/input.txt | 200 +++++++++++++++++++++++++++++++++++++ day8/part1Instructions.txt | 72 +++++++++++++ 2 files changed, 272 insertions(+) create mode 100644 day8/data/input.txt create mode 100644 day8/part1Instructions.txt diff --git a/day8/data/input.txt b/day8/data/input.txt new file mode 100644 index 0000000..6f4f357 --- /dev/null +++ b/day8/data/input.txt @@ -0,0 +1,200 @@ +ecdbfag deacfb acdgb cdg acdbf gdfb efacdg gd cagdbf beacg | cdg dcebgaf gbdf bdacg +fadecg gdbecaf agbfd fgdcb gab ebagdf feabcg deab gdefa ab | adfbg ab fcgdbae bfgecda +cgebad edfagcb fg fedg ebfca gcefb fcedgb dbagcf cgf cdbeg | cfg acfbe bcgdafe dgeafcb +bgcde cbefg gd dbeafc afbcgde bedgca gacd dbg cedba fbegda | agfcebd adgfbce dgb fgceb +gadcbe gcade debfac fdagce egdbf cfedg fbgcade gafc dcf fc | fcga eacfdg gfca fdcbea +dbgcae gdeaf cefga cfa dcbgfa cgfabe cefb cf ebfgcda acgbe | gebacdf fcgdeab bacdge cfeb +fgde efc dacgf cbdgfa fe abdcfe afdbecg gaefdc gcfae abceg | ef agdcbf bfdagec efdg +egfacd bfcdeg ac facbg acbe cfa fbgace fgecb gfdba fbdcgae | ac ca ca fgeacb +acefg dae dfbec abfcedg cfdea dgeafc ad dfag eacgbd bcagfe | dfag gfad dgfa beagfcd +gae cabfgd fbcag ecbgad gfec ge agbfe gdefbca bfeda cfbgea | geabf gecf efgc gafbc +efdgabc bda gceadb gafbec aedbf da cadf cbaef badfec gdfbe | efbda dba adcf da +dgbaec gcade feacd bcfgae fabcd edfg ef agdfcbe gdefca fea | gedf aegfcdb edagc cefdgba +cf adbfc bfagd gdaefc cgdefab gfbc gdacbf caf eacdb fdeagb | fgcb faedcg cbfg gcafbde +bg cabg cdfge efbacg cebadf dgeafb fcebg gbe cabef egdbfac | gb bge cgba ecbfa +dgfcabe geadfc gbadf cgd gbedcf acdgf dfbcea agce cg dfeac | cg agcfd aegc cdg +gcfdae bcgde bdf gfcaedb bafc abfdcg agdfc cbgdf bf beafdg | fbd bafc cafb dbfcga +fgab fbedca fgead fg bfgead efadb gefcdb defgcab fdg gadec | cbedfg abgf agfebd gabfcde +begda fgbdeac gecf cgd dgeac efadc fbecda cegadf cg fabgcd | adgfbec cgd gdc dgfcaeb +gcbfe gacdef eadbgc eabcf cbg dgfcbe bg dfeagcb dfgce bfdg | gbc bfgd bcg bafce +efcbd ecabgd cbdga cfaedbg fcabdg deg ebga eg gdceb aegfcd | acgdbe ge aecdfgb fagdec +gdeba afb cgdfab gfacebd gafe fa fbedc dfbega dbecag ebdaf | cagfdb eacdbgf bdefagc ecdfb +fcbgdae egfbc fdbac dgcaef fbcdag fgcbd aecfdb dcg bgda gd | dbag dg afcegd cgd +dgcea agbedcf ed agcef acgbd dagfbc gbed ecbgad dae bdaefc | begd ed dea ead +efdbac bedcgfa agcde cdgfea cg bgaed dcg efgc faced gdcfab | dafbec fdacgbe fgdace gadeb +bdgae acdegb adgfbe agc gbcaedf gc agdfec abecg ecfab cbgd | aebgd cg cg gdbc +abgcef ebgcf badgef cfgdbae cfagb eb gbe cfedg dbafgc baec | beac agbcf be ebg +dca cabedg acbf aedcf agcdebf daegf gefbcd efdcba ca debfc | cfba agcbefd ac cbeagd +bf gfbeca cbaef adfgbc bfc gbef aegbc gcafebd bagced acdef | fcb gefb bfeac ebgfac +gcbaefd fg cfagbd bafdc bceafg gfbcd fgb dafg dbafce ebgcd | 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ceagdbf dgbef afcde bdca cgeabf afbecd aeb aegcdf | cbda egafcb abe dfcea +acgbde bcag fcbged bec dfeab ebadc bc ceagbdf gdaecf aegdc | abcde gcba ebc ecb +bacgfed ecafgb gefbc agfedc fbeag fegdba fcg dcgbe fc bcaf | gebaf facb gbefca cegbfda +dfebgca daceg beadgc bcgda gebd bag fgcade gcfeab gb cadfb | dbge gdeac bag acdgb +cefg bfcda eacgbd bdfcg cgedfb geafdb cg cdg fegbd fceagbd | fcdgb gcdbf cdbfg cg +febc cgdaebf gedbf bf fgade fdcbeg bdagcf bgcade cgbed gfb | gfdbe fb cbegd ebdfg +ed bacdge dafgbce gaedb cbgafe fabgd deb cbgae gdec efbdca | deb ed degba acbgdef +gcfdba gbadf cb dbgcae cefda bgadecf efbagd abc fcgb afcbd | cb bfcg cdeabg cbfg +bfcedg bcedaf bfecgad efbad aefc ce degbaf bce aecbd cgbda | bafdce acefdbg dbfecg cbe +bf cdbef bef gcfb ecgadbf debfcg bgadef cbdea afecgd efcgd | gfedcba gedfbc edbca efgbda +becgaf fbedcg dgbef defcb gbf begda cfdgeba dfbace dgcf fg | degab fgcd gbade gdfeb +fbecdag edafc ebdfc aecb fabcgd bfc bc ebdacf cgeafd bgfde | bc fcb cb eabc 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dbgae dfe adfcb gcbfeda ef bgfdae gadecf gfbe dbgcea | bgfe ebdfcga beadcg badcf +eafbgcd bfdcae egfac dbaeg cafegd bfcgae gcfb ebacg cab cb | aedfgbc bc ebdag bgcea +bdace abgdef dfc bdecf fc gbefcd cfegad fcgb degfb dgbafec | dfc dfc gcbf fgabecd +gbfdeca gca gcdb fgebac bcdfag bdface dcbfa agdcf gc afgde | cbadf fcgeab afgdc gbdc +daceg ceg eabg abefgcd ge gbcda gbcedf geabdc adecf fdagcb | fdbceag eg adceg gce +bd acdgb fdegca egadc edgfacb ceabgd gdafeb dgb cbde fcabg | cebd gbd ecbd ecdb +gdeca gcafbe gfecabd ecfd adbgc fdgea dfagbe ec cea gecfad | efgabdc dgabcef cea ce +adefcgb gbfd cbedf gf gefbdc cgfeb acbeg cfbeda fge fcgaed | dbcegf fge egdacf abgfdce +bfegca fdgb fdcga dga fbcga cfbgade dagbec gd caefd cdgbaf | dbceag dgfbeca dbfg cagdbfe +cbad cageb egbdaf cgdbaef da dea efgcd bgcade gaefbc dcage | dea ad ade gcdae +fgeab adecfgb beagcf debafc acbged fb cagbe gefad feb cbfg | badcge bfe fbe bgcf +cbfag bd fdaeg afdbg dba bagdec gbeafd abfegcd dfeb fadegc | abgdec gfbcdae bdgfaec fcgba +eabdgf fadbcg aedcfgb eg bge bagfce bgecf bfced fbgca cgae | ecfgb eagc eg ge +cgab bc abfdec cgefd adbeg ceb fabgde cadegb cbedg bgdeacf | gabc gacb cbag gefabd +bfecgd facdeg bcgfd fd fgcab bcegadf bdegc debagc dfg dbef | cgbdea dfg efbd gdf +bedf debcag abfcg afd acdbe fd dabfc deabcfg abedcf egfdac | efcgda bfde ebdf dabfec +gacbf gdebfc aedfb eg eacfdb egad febag aefgbdc egb gfabed | defba gbe eg eagd +fcdb cgadef bgfcad gabef eabdgc cgb gefbacd bc dagfc gbcaf | bgc bgacf cb dbfc +ebgfcad ebdga efdbac gefacb ge eafbd dgfe bagdfe gbe bgacd | bgedfa eadcgbf beg degf +gfabcd ba abedcfg bfae bca edafc bcade gcfeda efdacb egcdb | ba ba afbe dbgacf +ecdga deagcb gdbe ecgafd gabfced gfdcab gb cbg efcab ecgab | fagcbd dbagecf gbecad deacgf +fegbcd dg gfaedc egafc befgca eacdb edacg ged decbgaf agdf | fedacgb dge dg gecfad +cba abfeg gecabf cfdbae eacgbdf gfca ebdafg bcdeg ceagb ca | eabfg gcaf gafc acegb +dgefc fbgecd bafec da cdafeg fecad dca bfecadg dfga gcedba | egdcf aecdbfg aecfd acd +gdcf afcgbd cad gebda dfeacb fcabedg abgcd bfcag dc abefcg | cdgf cabfg gcfd adgbe +ef cafeb gbcfea agcbdf agbfc gfae bfe cgfbeda bdefcg dceab | eafg dgcbef cfgba bcagedf +eadgcf cadb ac cdbge bcaeg bcdfeg egabf ace fbgcead dbeacg | afgdecb egafcdb cdgefa ca +da bfacg bdfgace adfgbc badc fcdga gdaebf caebfg dga gecfd | fdbaecg ad cdgfaeb fbcdgea +cfd fc gfebacd bdcge cefgd afcged abdfcg acef adfge gdefab | bagfde gaebfd cf cf +dag bdfgac agbc fgbdc fdcgabe ga gbdfce gdafc ecfda bfdaeg | cbfdg bcag dag ga +gacfe aegfcdb fdgca dafcb cedgbf fgd ebacfg dega afdcge dg | gacfe gcebfd aedgbcf dg +cdafb cbfag ecfdba acgdefb daegbc fcgd dcafbg gbc gc aefbg | gbfea gbc cgfd cabefdg +bcdeg cfeabd fc afgc gecdf gdefab dgecaf efc bdaefcg egdaf | gbfaed efdcg bgecd dbagecf +cdeb cadgfb dagcb deacgf bgfae aebdfgc badeg eda aebgdc ed | ecbd fageb ebcd ed +cfde eacgfd gaefc agbdc gcdaf edgfba cebgaf gbcdefa gfd df | cfde fgd ecfd df +egfdb fgadc bgc cb cafdebg ecfgab cdab ceafgd bfgcda cfgdb | cabd ecdabgf adfgc egdcbaf +edcbagf fa gdcbea egcfd aecbd fadce adf ebafdc gbafed fabc | ebgdcfa daf acebd dcfge +bdfec cg dabegc cgbde fcegbad dcagef abcg cge dgfabe badeg | bcfed bacged gc cgadfbe +dagbf fbgdc fcbaed geaf ga ebadcg agd begafd cgedafb afbed | fgcdbea fdeab fdabe dga +fae dacfeg cade acdfbg ea dacefbg gcfabe cadfg degaf fbdge | bdafecg afdge fceadg fgbceda +becagdf gabfce gb bfdca agb dbgafe agfec egbc cegfda gcbfa | cgbe bga bdgeaf faegc diff --git a/day8/part1Instructions.txt b/day8/part1Instructions.txt new file mode 100644 index 0000000..655a920 --- /dev/null +++ b/day8/part1Instructions.txt @@ -0,0 +1,72 @@ +--- Day 8: Seven Segment Search --- + +You barely reach the safety of the cave when the whale smashes into the cave mouth, collapsing it. Sensors indicate another exit to this cave at a much greater depth, so you have no choice but to press on. + +As your submarine slowly makes its way through the cave system, you notice that the four-digit seven-segment displays in your submarine are malfunctioning; they must have been damaged during the escape. You'll be in a lot of trouble without them, so you'd better figure out what's wrong. + +Each digit of a seven-segment display is rendered by turning on or off any of seven segments named a through g: + + 0: 1: 2: 3: 4: + aaaa .... aaaa aaaa .... +b c . c . c . c b c +b c . c . c . c b c + .... .... dddd dddd dddd +e f . f e . . f . f +e f . f e . . f . f + gggg .... gggg gggg .... + + 5: 6: 7: 8: 9: + aaaa aaaa aaaa aaaa aaaa +b . b . . c b c b c +b . b . . c b c b c + dddd dddd .... dddd dddd +. f e f . f e f . f +. f e f . f e f . f + gggg gggg .... gggg gggg + +So, to render a 1, only segments c and f would be turned on; the rest would be off. To render a 7, only segments a, c, and f would be turned on. + +The problem is that the signals which control the segments have been mixed up on each display. The submarine is still trying to display numbers by producing output on signal wires a through g, but those wires are connected to segments randomly. Worse, the wire/segment connections are mixed up separately for each four-digit display! (All of the digits within a display use the same connections, though.) + +So, you might know that only signal wires b and g are turned on, but that doesn't mean segments b and g are turned on: the only digit that uses two segments is 1, so it must mean segments c and f are meant to be on. With just that information, you still can't tell which wire (b/g) goes to which segment (c/f). For that, you'll need to collect more information. + +For each display, you watch the changing signals for a while, make a note of all ten unique signal patterns you see, and then write down a single four digit output value (your puzzle input). Using the signal patterns, you should be able to work out which pattern corresponds to which digit. + +For example, here is what you might see in a single entry in your notes: + +acedgfb cdfbe gcdfa fbcad dab cefabd cdfgeb eafb cagedb ab | +cdfeb fcadb cdfeb cdbaf + +(The entry is wrapped here to two lines so it fits; in your notes, it will all be on a single line.) + +Each entry consists of ten unique signal patterns, a | delimiter, and finally the four digit output value. Within an entry, the same wire/segment connections are used (but you don't know what the connections actually are). The unique signal patterns correspond to the ten different ways the submarine tries to render a digit using the current wire/segment connections. Because 7 is the only digit that uses three segments, dab in the above example means that to render a 7, signal lines d, a, and b are on. Because 4 is the only digit that uses four segments, eafb means that to render a 4, signal lines e, a, f, and b are on. + +Using this information, you should be able to work out which combination of signal wires corresponds to each of the ten digits. Then, you can decode the four digit output value. Unfortunately, in the above example, all of the digits in the output value (cdfeb fcadb cdfeb cdbaf) use five segments and are more difficult to deduce. + +For now, focus on the easy digits. Consider this larger example: + +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 + +Because the digits 1, 4, 7, and 8 each use a unique number of segments, you should be able to tell which combinations of signals correspond to those digits. Counting only digits in the output values (the part after | on each line), in the above example, there are 26 instances of digits that use a unique number of segments (highlighted above). + +In the output values, how many times do digits 1, 4, 7, or 8 appear? +