Day 3
This commit is contained in:
parent
180af41342
commit
400c357d88
224
day3.ts
Normal file
224
day3.ts
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@ -0,0 +1,224 @@
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const input =
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`.......................661.........................485..565.......344.......325.....................................841.....725.............
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....*609..131................512.......................*................536*..............462/..-...60..424.........@....$.*................
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.316.........*.......39..................@.630......377........919...........98................789..*..*..............788..2.......=..564...
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...........431...535...*...............622.-..../.................*..........*.......682...........108.116....@...-...............299.......
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.....................428.....378...844.........416...............586.537=..27..........*......$..............871...331..................492.
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...878....390....%..............*.*...................739.496=.................867......867..867.........................344......487.../...
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...../.....*...558........@..535...644..................+.........404..605.......*................................%.....*...................
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........................381............729..726....578........10...*..........818..............................929....934..........119......
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.53....31..........734-..........847*.................#.........*...........#............217............/..321....................*.........
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.......=.............................509.315.654.................60.........925.747*559..*.....430....226..*...................290...848=...
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..........=.......546......664..507......../....#.......337.............................94........=.........359....528*996..................
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.....351...638.......*.............*433............337.....................226...859........../............................378..............
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.......*..........648.........183.........126........*...........208.954......=....*.......626........499*..........803.../....642.235......
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.518*...813..990..............*..............*......699...133....+...............68...............79......838.447...*..........*...*........
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................+.696*.........586.6......243.............*..........$224.............392...275.....-.........*...699...#177..230.593.&.....
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...........$326.......683.-761.......491......./.........26...........................*.....=.........56.305.262.......................150..
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....=.......................................41.908.........................819.785.....276.....&.................%..........................
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.618......401$...............-......................599..124......34+.........*..............676..................342...........473.........
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....................889......888..454....723/.........*.................141*.....958.......................................416.....*94......
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....212.............-................%.........826=....552..................569....*............................728........=............143.
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...*......287...................=60.............................872.....886.......171....437......815..680.........*.............633....+...
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..234....*.....687..........432........203/.....*...275.65.........*341.@...........................*....%.246......272.....922*..../.......
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........967.........495.......*....161.......474.97...*..*..84.400.........*295....805......................@...................915.........
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...419.................*.979...932....*.............729.215.#....*.......81........*......554.263*567..........812..........................
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.....*..............458....$.........682......................179................348..906.................428.../............798............
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...668..................-.........................552............./..................=.......+...........@..........99........*..85.4.......
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........29......938..594......107........*171.98.....*..896....$..491...........+..........412..12.............326.*.....705..4....*........
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..........*....................+......332......@....949..*...750.......$..974....342.............*....558......#............*..........794..
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.......459....342*.........637...........................273.....658..601....*................735....*...............%....627....889...*....
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.697..............131....................718.................689.............450....390............994.............793.............*..241...
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..............991........89..........14.......*.................*912.............39.+...698.............................953*240...87........
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..324.............618.....*...328......*....538.%.....307.920.........515...............*...................................................
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.....*386...........*...780..*.......475.........719...*...*...................910...410................384.....999........*756.............
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....................268.......701.............72........63.43...193.....+..................674...670$....*........*......95.......893.......
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...16.........................................*....663........../....407.....................*........258....264=.298........202*..../......
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...&......574................187.......88...53.........931........@......&759....$..672....385..............................................
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.....938........192......297....*.723...*.................%......930...........692................283.....................=349.........&981.
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......*....................&.207....*...843.736.........................260..........677..389........*..............954..........&..........
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......603........713.............745..................411.359.922.......*.............*......*.......718..888..561..=.........182..206......
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............896....*.....173*383.......%...145...943...*.....*.........622..382*.......180.141............*...........................*.....
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.....89........*...238.............+.714....*........575../.........................@...............$.....539.......114*721.645........471..
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.......*307....968..............250......836.....498......59....909..601*..........117...........435../........944..........................
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............*...............56*.................+....498..........-......730.882..........975..........680........*...95......152....$517...
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...........150.......142.......473.713.+262...........=...577.266...736..........668..$.........70*111......811.165..@......................
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.......741.............*.97.......................=.........*.......*....-654..........428..157................................748*823......
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.........*............48...*.....772....892.....350....$.....760.148.............................440...........731*563......................
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........260..............227...............*..........795..................649.....27.107...219.@.....23@...............226......369........
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...41............&...................+...136.....546.......$.920...................+...*...&....../.........981...........@.......*.....454.
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...*......635%....782...............560............*....896...........854..+...........694......340...@.498*....................41..959*....
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...486..........................63..................810......641....+....*..532....642.......$.......90.....................76=.............
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..........325.....................@..............@...........-....539.407.............$......9...........550................................
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...787..$....*.$105.126.+810.........497.576...538.............................718.......................*...+....317..519..................
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.......303.493...........................................-...........462..647..*...........%..+875....641..644.....*......*.....154.588.....
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................./.....-......44.........%...@140.......228...43......*....*..132.794...628.......................669....110....*.....*.....
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....579...........348..32.491*.......#...646.......506..........*708......74........#........117..............24*............698....532.....
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......*.........................902.722............=....=........................................700....610......878....*...................
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.../..885.../..351.............*.........................799.....814*238......*339....428*825......./................965.862......125.......
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.723......243.@........852..........757...784.472..814.......603...........151........................279.617....849........................
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........................*......./............*.......*.........*....#.............91.......246...384.....*........%.........................
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.218.659....113+........128....691...................972......571....934............*......*...................................442..236.....
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....*...............455.............868......&379.........................594.......80....654.....................421.456...................
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............2*535......*410...553........409......235.173..779......116.....*.................&........*646.418*.....*.................596..
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.70#.361......................./....493....$..........*...-.....440.........317...865...323....696..202..........952.......187.....%....#...
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..........%...767......318............*................1.............../...........*......*................241......@.147...*.....389.......
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..921.....301..*........*............67.540.../....149.........=........827.....=.347....956..........980...............$...204.............
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...*............341......154.............*..695.....$.....20.183..............177..................$...$...66......699..........495......296
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.460........&.......+............%.......4......+........*.......................................347.........*36...*....912.......*..765....
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............142..163......885..480...............805.%...587...........289.310*389........$843..........-..........417....*.....628....*....
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.............................*............434........803........482......-.........556.........&.........294...33$.........79........358....
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.......................407@...873...............+..................*542....../.41....$./758....176.................*........................
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.........842......................442*766.......284.........842...........856...*......................647......422.94..............@.......
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....$........799............................&.......433.318*.....576..........111....................................................788....
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.720...168.....%........840..............989....................*.......=............468..419...........198.................................
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......*..................+..392..............282.......&...............591..........&....*....101.340....-.....187.....-....................
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.....746...........................499...779...*....456...........@....................346....*......%...........*..693.......94..72........
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.........970..671..696./....................&..999......124..246.434...........................173........@.....165.......925*.../..........
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..628.............*....608.....827-.......*..............#....*........634...../418......185.......311...808.........372*............824....
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..........694...360.....................43.645.................935........*516...........*....555.....*..................33.........-.......
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............*............+........576#.........810*592..740.....................#665..968........*499.775..882+..............998............
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....=303.....433.280......147..82.........................*..............................................................751*...............
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.................$......................608...560..827...227....................448*..@......................@529.376...........@...........
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...........465.....#.............554.....#.......#..#.......................401.......714...../.192.999..................466...28.161....351
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..............&....706..157.679.@..........741..............818.811=..............412.......376...&..*.......=..............................
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.441.....955....63.........*........=........+.............*..............#..........*..............399.......613.......444........*972.....
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........@......*..................697..........600.&965...354.#.....392...827..665....326.................323...........&.......483.........
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................381........972..........373*..*................9...&...........................289.........*................................
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...........................*....+.............239......................863....................*..........341.....*329...................$...
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801..+...638.659........358...29..695.....@........241...680.....863..........................310.#...........941........@216........311....
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...*.358.*...*....................@....786....*330................&.........842........11..........279...................................686
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.932..........666....533..712..............801.............64.544.....*972.....*353....-..809...........524...........397...............*...
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.........795+.......*.......*......394=................586......*.........................................&...........................562...
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...................629.......184........796..............=................-946.348.../670............63.........%...........................
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.....428-................918.........@..............#.............850.889.........*..............673..#..110.221..........337.560...-.......
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.....................926*.........809.........=......627.............*..........344..........343.*........*.......832.......*....*...216....
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.....624.....+................................78............915..701.....876.........734.402.....181.193.460.639.....*...558...138..........
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.../...*...91....804..324..985......#429......................*..*.............892....................*......*...321.727...........134......
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...991............*.........*.............39...........%.633.213.623..........&...........601.919.....378.318...*............@34............
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........183.....#.399...+..297..973...622..*........855../......................+684../......*................335.................733.......
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..........@..576......597........*.....*....686....................371..98..23$......119................................=.777......*........
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.................901%......*...412......102...........754...332.47*......*......861+......539................495@....801...*..404...777.....
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.........577..........577..978.................990......*...#............236.............@..............339............../......*........534
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..169.....*..687........*..........598..........*..349@.723.....864..........972............196.....491*........$........335.372............
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.........339..=......633........29...*.........4............251*.....$..........*.250.........$.908..............356.230...........324.386..
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.................943.............-.....=............................325...726.690.*................/.......646........*...214.......=.......
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.........&468.......*..................999.......944.........751..........*.......219.837.107..............*...=....271..*..............283.
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......*..........210.....*390.....917*.....996*.....+..790...-.........128...............*................905.277.......320....936..835.....
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...640.581....*.......167.............392......29......*..........885............................369..................&...........*.$...#...
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..............708..........106.223...................817.........*............277.........&.........@..795.-296....172..........633......229
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.......82..........@679.......*....*806.................../....10.............*.........456...........*.................95...........3......
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..........536....................12........=914..458.......214..........995..97.-735........370.......334..876=.........*.......950#........
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......414..=.........794.............=................*...................813.394...815.718....759........403...............738.............
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............463...........-..238.419............810.41...........452..2=..................&..............&........435.................468...
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........................103....*..........................+...11.&....................927...........%.......282...*...234.....229......*....
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............67...312..865+.............910.....*...382.......516....973....*..874.500..153.....*............................................
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..........828.....669......=.....*...........................................284.189...$..371......*168..............%.......762............
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..........................4..565.226........562@....190......281....257.......*.......889./......57........./...#.......210..*..............
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......47.......120.............#...................*...........&....*.....169.549............%............414..744......%....503.#208.......
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........*.................643.........397...........350..........289....&...*........&.....323.....+..................................856...
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.....*...............458....#........................................104.....931..855..............89..469.....882...........=.........*....
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..594.777......390...*...........422........355..............654............................81........*...........*......282..630....195....
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..................*.568.912........*........*.....377..........*......*877.............419..*.....148.768.......471....+....*...............
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.......393......163..........298.820............@..................582.......823......=...........*....................952..................
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..........*268.......*733.59...@.............403..........................................14&...502...............481.........$.....231.....
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........#.........970.....*......#....981...........711.261=.................=.......................701..244................323.....*......
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.396....993.............557.......46.....*...........+..........714*659.....134........623..........*............677.730..............846...
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......#......91...405........296..........295..............@..*.......................#..............740............*........%..............
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.......345..=........-.792....*..834................100.891....764...697........570......*....620*.@.....................508..295...........
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...*13................../...340...#..134..............#................*..........*.......247......660....607....705.....=...........165....
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.........521..824...222.............*......372..290.....844.825-.......867..820...627...........................*............128...../...777
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...629...*....#..................788...535....*..-.......*.........361......................*......805.......732....914....../...-......@...
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...*.....743...........853..................637.......880...-..849*........425............946..590....*302...........*.........748..........
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...120.%.......271..............862.....70................207................=......233.......*..................443..263...................
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........680....../.825.....&793...........*....................-720.............555........184..509.......22......*.............811.........
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..........................................772.272......................134.........*..374.........*............573........*.......*.........
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934..231.....*....821...230.....981..............%........707..370....*.....634%..787..*..........93..909..70..........199.59...490.........
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.......*....525.........-........*...747...676=..../.......*..........829...............324..952.........%...*..........................%...
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.....189.........................791.............236........687.868........................................505..............713......777....
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`.split("\n");
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function isNum(c: string) {
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return !isNaN(parseInt(c));
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}
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console.log("");
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console.log("Advent of Code 2023 - Day 3");
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console.log("");
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let sum1 = 0;
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let sum2 = 0;
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let gears = [];
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let nums = [];
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for (const [i, line] of input.entries()) {
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// Regex to extract asterisks and their position from string
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const regexGears = /(\*)/g;
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let matchGears;
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while ((matchGears = regexGears.exec(line))) {
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const gear = {
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x: matchGears.index,
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y: i,
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};
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gears.push(gear);
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}
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// regex to extract numbers + their position from string
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const regexNum = /(\d+)/g;
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let matchNum;
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while ((matchNum = regexNum.exec(line))) {
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const num = {
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value: parseInt(matchNum[0]),
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x1: matchNum.index - 1,
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x2: matchNum.index + matchNum[0].length,
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y1: i - 1,
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y2: i + 1,
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};
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// Check if the number is adjacent to a symbol
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loop: for (let y = num.y1; y <= num.y2; y++) {
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for (let x = num.x1; x <= num.x2; x++) {
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const symbol = input[y]?.[x];
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if (symbol && symbol !== "." && !isNum(symbol)) {
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nums.push(num);
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sum1 += num.value;
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break loop;
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}
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}
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}
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}
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}
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// Iterate gears to find ones that are adjacent to 2 numbers
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for (const gear of gears) {
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let count = 0;
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let matches = [];
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for (const num of nums) {
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if (
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gear.x >= num.x1 &&
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gear.y >= num.y1 &&
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gear.x >= num.x1 &&
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gear.y <= num.y2 &&
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gear.x <= num.x2 &&
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gear.y >= num.y1 &&
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gear.x <= num.x2 &&
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gear.y <= num.y2
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) {
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matches.push(num);
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count++;
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}
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}
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if (count === 2) {
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sum2 += matches[0].value * matches[1].value;
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}
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}
|
||||||
|
|
||||||
|
console.log("Part 1: " + sum1);
|
||||||
|
console.log("Part 2: " + sum2);
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
Loading…
Reference in New Issue
Block a user