Compare commits
2 commits
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dbd12f59f1
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2e0c80df80
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3 changed files with 260 additions and 0 deletions
140
inputs/day3.txt
Normal file
140
inputs/day3.txt
Normal file
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@ -0,0 +1,140 @@
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..975..95..................717..........................................747................................................622..............
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................/47...........@....701...610.........252.660*.............*..236.....323..........108........653............................
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.......69............313..............$...$...*....@.........640........81.....*................................*332..92....................
|
||||
........................*...210.............767...912...367.......505.......817..................*.........478.........=....223.....568.....
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..76...968............108...@.....556.....................=..........*...............412..313...575......../...........................*107.
|
||||
............773/..891............*....................744.....805...14................../..../................320&.567..#...................
|
||||
.962..708............&........399....146.....385.................*..........825.......................................-..655....485...-.....
|
||||
...*.........+..........................*76...+..................242....997..*......185..........207.390..870...883............*.......337..
|
||||
....929...299....................*.................249........-...........*.373.....*.............*.....*.*....*.............549............
|
||||
................196.745.996...364..............409...-.926.....273.....580.........31...........545..547...862......810.....................
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||||
................*.......*..............900+....*..........*........586.........936...................................*.........673..........
|
||||
.../..........864.683.215....*......%.........702..166..46..........&....341..........694..496.......528.%...........839...105..*...887.....
|
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....506...617.....*........51.807....942..424...............................*..........@..+............@.84...................*......=......
|
||||
...........@....594.........................*..........*675...........345..52...$..................-..............899.........804.$.........
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||||
.362*366.................487+.48&.......600..180....845........................535...18...........397.#908....432*........229......346......
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||||
.................*................835....................578......*502...............*..416.............................................391.
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||||
....610&...514...501......./........*....*71.........../.......674......925...............*.869.....966........393................/.687.*...
|
||||
............*...............786...248.104........92.633.....%..............*104...&466..138..@.........*.525...+......974......339..=...260.
|
||||
....372/.889..............................55.406........134..250.=228..609...........................69...............*.....................
|
||||
...........................................*........976...*...........=.......357...........................191.....150.....................
|
||||
...-...........595.634.........*396......592..594......*......411.856...760....../..................201.....#...709................168......
|
||||
.936..236.........*....@....436.....100....../......35...../.....*........*....................917%............*.....................*..#63.
|
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.......*..............542..........................*........689.........26....667.&...................738....831..$.............513.53......
|
||||
........10.....529........*250..........162.......390...........................*..70.............................701..........*............
|
||||
..355.........&........394......301@..........542..............................142..........%..............%..........*.....507.............
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.....*.........................................*.....%..283.....*.........997&.......@670....402..........808......308.459.......712...152..
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..291......246.@....+986.....336/.......976...468.264...*....739.187.............................................................*.....*....
|
||||
........../....46...................186.$..............674............................227......-............975...............436.......492.
|
||||
.491........................810.......*........................772*.........742........%....198.....*702.......*.596=....64.......=.........
|
||||
...................706......=......415..................=.199......235......*...47........................72.607...................443......
|
||||
.214..............*.....771.............302...........230..+..............810.....*219.606........912.....................=.................
|
||||
......277......320.............937.....*.....+....632...........&374..............................*....................898.....642%.........
|
||||
.........#....................*.......716....229./.........................$................934...233...............98............../.......
|
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.....*........-659..457.........964...................659....786....619.666........277...@.....*......930*460..618...........910..265.......
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..845.877.343......................*537.../120.......*.......*.....*.................&...175..631.............=.................#...........
|
||||
............*....................+................@...35.949..34.381......273...880......................451........326.....................
|
||||
............876..880......827..733.......645.......38......*.........402.....+..........902....459.775........837.....*.185.......813.......
|
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........578................/............*...............622..18.........*234..............+....%..........448.......935....#.............350
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..........*...468.....546................588....146=.........*..142.795..............*424................../.....................=..........
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........245............@...746.......362..................970......*..............593...............487.......+.............709..593........
|
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...990......&415..............*381......*.....................435.......214..908..................*....*.....351.....876.25....*............
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......*............293*.....%...........271.............135......*......=........540............177....604...........&.....-.46..........166
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...609.....................910.................@........$.......321..........141....+.45.....................750......................98....
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.......#....779........944.....653...........797...........788.................*......+....164.724....475&...+.............-.471......&.....
|
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..794...487....&..81...........*...................@............666@.....*981.937.............*.....%..........888....+...81................
|
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.....*...........+......694.............748...104..859..............................675.434.......290.............*..352........353=..$.....
|
||||
...619.977.........859..#....235....230*......*..............429........335....-.......*......631.......=.......27...................192....
|
||||
.......*............=...........&.........121..680.195.959......*417.....*..938.............../..........739..#..............194.750........
|
||||
....309...439.............14...............*..........*...............723.........163..748...........853.....885.........175*........487....
|
||||
.............*707..-626..........464.....382................356...........868#....*...*.....13......*............450............#.....*.....
|
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........216......................*...619......$..270........*.....892............25.494.841*.....971.............*............157.+...119...
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...#40...../............343..559.425.......536........718....739...#.......284...............726.....985..136...597.621.173.......203.......
|
||||
................383............/......................*...................@....348............*.....*.......*........./...*...811.......*158
|
||||
...=..............$......@....................776.829.85...&........541.......*....*...&....700......341.995.....73......114....*....267....
|
||||
.700.203....591.*.....924..........$217.......@.....*.......590....*.........812.579....517.......................*.............730.........
|
||||
......#......*...586.........312..................806............435...259...........................573........453.282*132.243.............
|
||||
..........224.................#.......468@............-...%.............*..............453...................$.....................-........
|
||||
....................................................227.673....881......828..&.....632*...................589.....................284..-....
|
||||
.....680.........871....17+................117.................*.............506..................#...410...................616.........519.
|
||||
........*..386................78*762.........@........28..557.655.......359........-............124..#......&..........843./................
|
||||
......724...*..584.....552............................*...&.................209..857...633-..............602...932......*........132&.......
|
||||
..........41../.........*..........................#..427.............=370....*................................*...353...902...........529..
|
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.....................150.......868.......370....549.........779...................284...........431.....3.....889.............189..103.=....
|
||||
.......530..355..........442...*............*63............+.......852.....935.....*..............%.....*..................@....*.-.........
|
||||
..........*...*...976.....*...500....@...........572...........940....*990..*....627.790.................460..904..601-..821..930....699....
|
||||
..........643.824.......248........358...4.........&..301.........&........538.........*.%436....565..........*......................../....
|
||||
.768..$.....................186..........*...178........*.......................*.&520..............%........782..........497.-......*......
|
||||
......762..828*...972......*..............3.*.......................@....../..836...............278..............666......*...927.413.185...
|
||||
....&..........40.......86.122..........&....450....................1....202............42...51....*..............*.....215.................
|
||||
.353.................94*.................995.....655.....520...828....*...........612..........&.119...........486...............713........
|
||||
.........................255........................*.......+.....-..463..........*........235........836....................668............
|
||||
...................................................286........338........=.393....398........*....199./............631..........*631........
|
||||
................64%....704...928.........470...125............*....708.15...*.............193.......*........641....*......687..............
|
||||
........$..............*...................&.....*..........582......*....652.@358..643..........125.....458........168....$.......$194.....
|
||||
........293.........305......417...............117....................612............*......262.............*903............................
|
||||
.....$...................615*..........581.........335...139..505.419.............656.........+.......506................710.....956........
|
||||
776..110.....+............................-........#..........*....*...447......*......................*...*.....938.366*.......#....376....
|
||||
..........366............844....305..761......780......560........236........725.272.....450.............67.126.....................*.......
|
||||
.................669$.......$.......=............*220./.....+665........495................*.@103....992....................&........600....
|
||||
.......*......................812/.........................................$............940...........+...................146...975.........
|
||||
....410.650.282.....*...............696.833....957...............996...*......772.287...................921..935................%.....$.....
|
||||
............*....413.921...713....................%.....769.........@.390.216..#.....@..........................=...........*.......46......
|
||||
.....798.136..............%....150.....236..............*......31...........*..........@.64..17......616..........901......344..............
|
||||
..............................-........*.....402......873.......*......692...592....390...*.............*277................................
|
||||
......539.....799.../.....272....%.@....694.#.............667...318.......=...............762.......71%.......-153......................531.
|
||||
..........556*......573.......465...916...................*..........602.........................=.......145...........................*....
|
||||
........................451.............../....%.....625.401.........*........428-.....493......479.427....$.........60......951......281...
|
||||
..947+....36....270....*............517....521..258.*............108..812.............*................*........................*372........
|
||||
...........*....*....957.823...290.....*.............415..........*...............908..730..........589......+..............................
|
||||
857.........843............*........794......................677..27........................121...........670.........548.837*....&.....664.
|
||||
......175..........-.....=........................422.......*..................226-..344.......*...................2....%..........474......
|
||||
...................283..190..@...........458........*.162@.666.517....202...............*..@...545.%.........705.............*..............
|
||||
...............*............296.466.....#.........................*..*.....852..208...999.475......256..........=....642..188.386...........
|
||||
............504.888..................52....416......394...349.....53.953...*......*...........@521.........213........*.....................
|
||||
......225...............272*32........*.....*..........*...%..............728.........827.513..........287*.........924..388%.........&.....
|
||||
..453...*..................................71.....*..437.......501...869.......928....%...#....................%225.............734@..157...
|
||||
....*..400...........810=.300@...13.15.537.....997........./......*.....*.........+.........407.758...674............604....500.............
|
||||
..970..........409...............*...*...*................159...788....338..............636*...../....#.......#895....*......./.............
|
||||
..................................52.....872........+...........................-........................524.........297............314.....
|
||||
...........=...469.....408.............&.........641......364%.780...526.........540.865....742............*..............549..505...*......
|
||||
........404.......*...-....58..%....577...............655......*.............613......*.............343..779./854............*....*...567...
|
||||
...103............284......./...999....................=.....640.....284..............566.982..........$...........476...478.793..556.......
|
||||
......*.....436........916.................941.............@.........&...........284.........*183.........857.953...........................
|
||||
...............*.404=.....*910..703@...20......266......815.....201.....54.332...........................@......*...........95..............
|
||||
.............898........................*........*..........13.....*806...*.......280.........................905........63*................
|
||||
........&.........642..271.627..920.+....534...96..780......@....=...........246../......99........................................../......
|
||||
....$....518.......@......*......*..323..............-............477....*4...*...........*....979......810.................366....697......
|
||||
.....439........................364.........161..594.....647..................802.........234..............*17......125..82....*............
|
||||
................187....667....................*..#.......*.......*................604..................946.............*....414.............
|
||||
....585...218.....*...*.............-....536.396........950...200......296*935...*..........#...382..........883......182.......326....*....
|
||||
.....+......-...557.349...........217............................./105..........527..387....394...*...........#..430*.....501.......393.190.
|
||||
.......*474.............16....................675.....999..............362..............*..........576...................*..................
|
||||
....449.....+.296*468.....................607....*...........-..#.................619....177...............31...........194..198..187.......
|
||||
.........156......................330.......+..332...631...936...477................*...........658..........%..845..........*..............
|
||||
....*262.........$......362......*.....429=..............................*324....296...........+.......161.....*....57.....309..............
|
||||
.403............492..97.@.....695..696......$.840..&.................21.....................@.........*.......178...+....$.............364..
|
||||
......178..692*.....%.....82..........=...176.......456.....517........+...238.704.......682......266.................&..222..........*.....
|
||||
......*........993........*....931*...........445..............*.................=...........@...*.......448.......251................222...
|
||||
.......824............467..232.......664..299*.......322*512..850..............@..........585....259........$..................&............
|
||||
...458.....572.................379....*........123.....................-........298..................-................336...908....*........
|
||||
....&......*....&..732...701/....*....440.....$...........739..636.....65..../.......%151.............823.455............&..........119.....
|
||||
........550....391..%.............259....................#....*............834............232.179............*.........4...795.784..........
|
||||
.............%...............729...............568.............936...............952........*..*..............726..........*.........-......
|
||||
...627.....87....@...........-...........6.....%...106.......................458*.....281..811..282..500..............=....833....214..780..
|
||||
..............320................665..............*........584.........................*............................343...............*.....
|
||||
..................997....84.590.....*795.90*487.842..%431....*.......233..692....259....391.113*........*338............./..391.............
|
||||
.....62.....#689.*.........*.................................444.......*...*......*.............445..861...........498/.857..*.....505*.....
|
||||
......*...........436.869.....634@..663...599..901*678.100..........666....301..493.986....174.............838*492..........454........313..
|
||||
.....362.....983....../................+..*.............=.............................*....*.......259.............+....464.........27......
|
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...%........................580....68.....45.........................................21..768...267....*.+....661..879..@....&......$........
|
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.643....545......./435.....*.........+.............................823....919.......................20..102.*..............267.690.....55...
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.........*...............557....247.......653....584.5*....430....*........../...529+...........856..........305.254..212.............*.....
|
||||
........945...528................/...775..+............204...-.537....$..528................276*...................%....*....863......612...
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....572.......*.........614.........+................................810...............842........438.....26...&.....%.........*............
|
||||
.......*....201.@......*....671..$........................../.............................*...832*.......*....214.899..........795.421+.....
|
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994..797.........684.390....*....452../..................989..728............685....23+.856...........498.............443...................
|
||||
.....................................424.......%...............@.......228.....+..............+.......................$.....................
|
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.....2...812.517.........602*967.........262....953...*.....*....67...*...........+......1.431.....721.....402%..&.......*.....504..........
|
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.............*....%..................963*...........96...287.255.*...548.........534....*.............*..........896..531.789.=.......855...
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...........579....595...........8................................781...............................547......................................
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110
src/bin/day3.rs
Normal file
110
src/bin/day3.rs
Normal file
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@ -0,0 +1,110 @@
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#![forbid(elided_lifetimes_in_paths, unsafe_code)]
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use aoc23::read;
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use chumsky::{prelude::*, text::int};
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use std::collections::HashMap;
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enum Entity {
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Void,
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Symbol(char),
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Number { num: usize, len: usize }
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}
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impl Entity {
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fn len(&self) -> usize {
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match self {
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Self::Void | Self::Symbol(_) => 1,
|
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Self::Number { len, .. } => *len
|
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}
|
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}
|
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|
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fn parser() -> impl Parser<char, Self, Error = Simple<char>> {
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choice((
|
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just('.').map(|_| Self::Void),
|
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int(10).map(|num: String| Self::Number {
|
||||
num: num.parse().unwrap(),
|
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len: num.len()
|
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}),
|
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none_of(['\n']).map(Self::Symbol)
|
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))
|
||||
}
|
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}
|
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|
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struct Line {
|
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entities: HashMap<usize, Entity>
|
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}
|
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|
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impl Line {
|
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fn parser() -> impl Parser<char, Self, Error = Simple<char>> {
|
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Entity::parser().repeated().map(|line| {
|
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let mut col = 0;
|
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let mut entities = HashMap::new();
|
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for ent in line {
|
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let len = ent.len();
|
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entities.insert(col, ent);
|
||||
col += len;
|
||||
}
|
||||
Line { entities }
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
fn parser() -> impl Parser<char, Vec<Line>, Error = Simple<char>> {
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||||
Line::parser()
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.then_ignore(just("\n"))
|
||||
.repeated()
|
||||
.then_ignore(end())
|
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}
|
||||
|
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fn main() -> anyhow::Result<()> {
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let grid = read("inputs/day3.txt", parser())?;
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|
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let mut sum = 0;
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let mut possible_gears: HashMap<(usize, usize), Vec<usize>> = HashMap::new();
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for (i, line) in grid.iter().enumerate() {
|
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for (col, ent) in &line.entities {
|
||||
let Entity::Number { num, len } = ent else {
|
||||
continue;
|
||||
};
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|
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let mut adjacent = false;
|
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for search_row in i.saturating_sub(1) ..= i + 1 {
|
||||
let Some(row) = grid.get(search_row) else {
|
||||
continue;
|
||||
};
|
||||
for search_col in col.saturating_sub(1) ..= col + len {
|
||||
if let Some(Entity::Symbol(symbol)) = row.entities.get(&search_col) {
|
||||
adjacent = true;
|
||||
if *symbol == '*' {
|
||||
possible_gears
|
||||
.entry((search_row, search_col))
|
||||
.or_default()
|
||||
.push(*num);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if adjacent {
|
||||
sum += num;
|
||||
}
|
||||
}
|
||||
}
|
||||
println!("{sum}");
|
||||
println!(
|
||||
"{}",
|
||||
possible_gears
|
||||
.values()
|
||||
.filter_map(|nums| {
|
||||
let mut nums = nums.iter();
|
||||
let ratio = nums.next()? * nums.next()?;
|
||||
let None = nums.next() else {
|
||||
return None;
|
||||
};
|
||||
Some(ratio)
|
||||
})
|
||||
.sum::<usize>()
|
||||
);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
10
src/lib.rs
10
src/lib.rs
|
|
@ -70,3 +70,13 @@ where
|
|||
anyhow!("Failed to parse input")
|
||||
})
|
||||
}
|
||||
|
||||
pub fn read_from_str<C, T>(from: &str, parser: C) -> anyhow::Result<T>
|
||||
where
|
||||
C: Parser<char, T, Error = Simple<char>>
|
||||
{
|
||||
parser.parse(from).map_err(|errors| {
|
||||
report_err(from, "<input>", errors);
|
||||
anyhow!("Failed to parse input")
|
||||
})
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue