Compare commits
2 commits
b2802d8f0a
...
36400e5636
| Author | SHA1 | Date | |
|---|---|---|---|
 D. Scott Boggs
|
36400e5636 | ||
|
D. Scott Boggs
|
66728f862e |
1
day3/.gitignore
vendored
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1
day3/.gitignore
vendored
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@ -0,0 +1 @@
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target
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7
day3/Cargo.lock
generated
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7
day3/Cargo.lock
generated
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@ -0,0 +1,7 @@
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# This file is automatically @generated by Cargo.
|
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "day3"
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version = "0.1.0"
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8
day3/Cargo.toml
Normal file
8
day3/Cargo.toml
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|
@ -0,0 +1,8 @@
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[package]
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name = "day3"
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version = "0.1.0"
|
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edition = "2021"
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|
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
140
day3/input
Normal file
140
day3/input
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@ -0,0 +1,140 @@
|
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...733.......289..262.....520..................161.462..........450.........................183.............................................
|
||||
....*....................*.............707.352....*............/.....................801...@...............333..196........484.635......287.
|
||||
....42.........131....913..............*......&..........634..................440..&...............83.....@...........404$..=....*..423.*...
|
||||
618.......272....*.........&......547.344...............#............689.589.*....150......382=................................168......433.
|
||||
..........=...............253.102*.........#......78.......804..........*........................858.........................-..............
|
||||
...69.......*37...510.797...........596.946........#..................................602.175...............203..100..........681.......546.
|
||||
...*.....110.....*......*..........*..........396......858=.......381....................*.......246*637..........=..391+...................
|
||||
...973........274..551.............576.21@.......$..................*.......................................176............181.883......*...
|
||||
.......223............+............................649.701.936...17..482..........80...........210.......+...=.........563.......*...222....
|
||||
.373..*..................532....707.......956....@..+.....*......*...........+927.*......698......+....763.........275*.....27..498.........
|
||||
....*......................+......*.........*..719....540.........24...=...........39...*...................514.........126..#..............
|
||||
.....974.......952*308..@..........965....450............*4.343......772../..............437............=....*............./.....309........
|
||||
............58..........840.....34................877........$............189..................*186......657.670................&.......854.
|
||||
....22.406..*......883............*......880...........939...................................58.....387..................*..................
|
||||
......*....587.........564/......599.......*...........*......................831.891/...552..........$.534+.....%802.975.960.346*..........
|
||||
.792+..............828................-807.6...........326....324...722...334..*...........*................................................
|
||||
.....................*.......................895..764*.........=...*........*..611..........79.......461@..546*940...818.346..........247...
|
||||
....%....473......................288.......*....................932.....590...........918......791..................................*......
|
||||
.....621...*........................*....129....425.10.....*.....................419....*.........*...166......#11...................831....
|
||||
119........302.832.............159.506................*.229.....493....39...............587....523.......*..........610...805.559...........
|
||||
......971.......*..........229*..........961........139..................+....411..................554....26.90.....$........*....-.........
|
||||
...........463.615...................315....#...................................-...422.......109.-............*247................231.56...
|
||||
..279*159.*...........126...569...............906..20..........990..........27.........%.......*.............................960-......./...
|
||||
...........364....812*.......*..$.........812*....*.....369....&......176......................15.346#...#.....908...828..........-650......
|
||||
.842*771....................189..9...............42...............897*...............479.................99.....+.......*...................
|
||||
................842*356.849...............336.......201................412......./...@...........205....................956....*319.383*....
|
||||
...438....&................*......../.......*.../...*....&.......62...*........348..............*....................54.....302.........298.
|
||||
......$..318................264.....28...259..824..306...249.......&.392...444............889#..418....945...496..../.......................
|
||||
................610.160......................................................%.699...987......................*.............................
|
||||
..........@125.....*..............292..#....514..........................165....*...*....&.....*672.....551.194.426......53...500.599...278.
|
||||
.275.192.........................*....854..#..............190............$.....40..662.706..774.........$................../..*......*......
|
||||
....*.........*840....*638.....82...................520...*................................................../.190...719.......34....620....
|
||||
...........532.....521................................*...423..75..........+....-........#...29.......258.605.....*..-......................
|
||||
...........................37........../354.%453.....248.........*...561.481....727....437........969...*......243..........................
|
||||
..................................183.........................+..250...+...................312.....=....150............@...229..............
|
||||
...624...454*710..../..........=..*......../........%30....308..............................*................+...381..941........461.341....
|
||||
......=............19.........297.......213..........................%............*522......442............962...-............92..-.....*...
|
||||
.................................................324.663............775...290=.301...............=...15........=....780..................562
|
||||
747........................438...35...806*.......*......................................%396..508......*700...16..-..$..230....443..617.....
|
||||
.......$.........447......*...............336..424.........618........-..276......260............................452......#......*...*......
|
||||
....824..@916....%...488..145....%.....55..........821.....#.....620.773....*116..*.......384............156.972................974..872....
|
||||
...................=...........494.....*......609................*...............768..195..*......108/..........*......440..................
|
||||
...187...........135.=.....44.........860..........$.......+..923...........966..........#..136.................423.......#....185..........
|
||||
.....*....298........761.........................217....157..................*.....................292....268........#........./............
|
||||
..789........../.375.........919.......425.........................542.....691..69..........184......*.......*.....578............531.......
|
||||
.......740..619..*..............=........%....788.....+..324..........*..........*......531..*..=82....962.409.690..........981.............
|
||||
......*...........652..+.........................*....32.#...........53...........761...*...353.....43*.......................*....6....611.
|
||||
....589......../........190.362@....961...........917......*...........................165...............&..718...............633...*.......
|
||||
.............781...565...............*................&..324...............................339..........964..+..........%..........427..312.
|
||||
.........927.......*........#260......919.......828..469........585..........803............/...&.......................365.................
|
||||
....406..........190........................308.*.................*.............*2.803&.........417....=............................955..126
|
||||
.....#...61.75.......149....293.768....678#......675............449.....@...............%...............347......301.....-.490.....*........
|
||||
............*........*.........*.............751........................888..&..348..49.747.........................*.318..#....888.........
|
||||
..........160......335.................455....*.......761...................564..*............*926...654...../....907................857....
|
||||
.....446.....................@....915.....&....639...=...........285..............567......862................731..............9........*...
|
||||
..........513.............694..........$...............233..721.&................................806.....101.........729.......@.........292
|
||||
...........*.....565..................329................*..*........137......$849...=773...........=...*.............*..+..........32......
|
||||
...359.277..849.....*399..................274....535....348.950.....*...............................................553..607......../.......
|
||||
.....%.*.................*...146.564.818....*.....*................438..............343..945......85............162.........................
|
||||
...#...67.374..*593.....740......*......*..553...795..664...$................493#....*............-...............*...971...................
|
||||
...510.....+........843.......791..277.................*....958....................489..#.................*657.213.....*...610.....193......
|
||||
........*......#....#.................#.......$..&12....531......167......659*...........521...157*....896...........503......+.......*241..
|
||||
257..171.245....959........................109................+...............454..................239...../................................
|
||||
...*...............................................#..........203...%...&..............359.330.846........751...382.985&.........646$..#....
|
||||
..624........453..................870......890#...662.............371..311...739..........*.......*.............*............=.........817..
|
||||
..................................*....................250.....54............*......../..........182...........237.....261@.250.............
|
||||
................743.......946.....943.....414#...80....@.........*..751............159..448..............91.............................&529
|
||||
683....@....370..............*........569..........$........131...........@34..........*....736.........*...434*929.........127.............
|
||||
...*.110.....*....48..........644....*....467.................*...............92.....673.......*718.....697.............979.&...............
|
||||
.745.......503.......288..827.....911.......+.......79..290.191..........$....*....................................230..........517.........
|
||||
.........%.....551..=.....#...........192.....917..&............597...479.....316.743...%.........#................*........122..*..........
|
||||
....529.461.../..............793.........*633..*.................%..................=.604.........320.......393..599.........*....717.......
|
||||
768...*...............=567.....-.144..............545................6....591..............216*.......73..*....*........215+.842............
|
||||
.....783....855............196......*.........909..*......537.......*......=....435............874.../...902.657........................@449
|
||||
.............*........%510........28..........*...605.....@.......468............#.....630........................418@..............701.....
|
||||
......397.....748........../...+........487..521......934...................&992.....-.....160.......477.....-.......................*......
|
||||
.916.................476.651..462..........%...........*...464......................425....*...........*..531...735....=..878.....853.......
|
||||
....*...............*.............*..................965...*.........754..3..657.......................92..........@..838...................
|
||||
.....116.....469...498........537..666....622&............237.......*..........*....204...........242.........&...............599=..........
|
||||
..............-................../.............283=...........283#.919.........638.*.........452.....*794......204.326...................168
|
||||
...........................541........................544.............../183........67..903+........................*....75.512..605........
|
||||
860..............*.........*.............455....730....*......................143................@....-.....=...366.......@......*...+59....
|
||||
...*..............447....916.....127........+.....*.....60................./....*...............572.658...891...+...300.....674.733.........
|
||||
.768................................*.-..........522.28.......870.....-....89./......764*...........................*........%..............
|
||||
............606....*...................798..............298...*......342......430........668.........485.270.265/..893..............=....524
|
||||
......#.880*.......88..907.........239..........509....=......406.+..........................264........*................829........991.%...
|
||||
....850.................%.....&913....*...........*...............302..&228.......%601....63*......414....*156.............&...310..........
|
||||
.............@....184.......=.......260..........748........................149................................895.....697.......*.66.......
|
||||
..........483.......*....500..970.......88..941...........25.....623...436...*.....................278..........=......*......522..*........
|
||||
................................*.........*.-.......885....*.......#....$..848........260.........-.....579.........950...........948.......
|
||||
...........270..........+....$..736.....245.........*....936.512........................*...@..........*.....$.&.........790................
|
||||
.....................634...764....................488.........#......454...............46.995........344...59..135..........#.@851...@949...
|
||||
808.......214.............................................610...................................185*........................................
|
||||
...........*.............+...........812........606..........*.................383..................218...355/................804.@687......
|
||||
.....751.476......145.....991.314.........................123.....917......434....*.634..&....@.................805....15......*............
|
||||
......#......25......*884......*..@......526*.................*20....*....*.....328.$....672.245....*392.423$...-.....*......83....484.581..
|
||||
..............................440.759............124*397...779.......752.303.....................764.................376.806......*....*....
|
||||
.401..976...75....765.......................%.......................................430...................................*......796....82..
|
||||
........*...&......*......474...2.-351....287.....=........@.......%....%....*731......$.......=....976.........960#.381..192...............
|
||||
........808........959.......#.....................322......243...534.134.828............*....95.........241...........*.......388...567....
|
||||
....$.........511......435.........825..................................................742...............&........%....888...#.............
|
||||
....53...........-....................$.......-...........................191.....933........454...................649..........=...........
|
||||
.....................993..430*....624........817.102.......660...............*.../.....157/...*...............................845...........
|
||||
.....&.....466..692.....*....../.....*.................987.........381....746..................744...........722.........340................
|
||||
..526.........*...*......74..810....257.........-....../............*...........941..898..................../......769...=...480..$...@.....
|
||||
........658...338.107..+.................563..550........388*....542.............+....&........112......572........&........*....553...588..
|
||||
631........#..........641..759......880.@....................740........247....................*...........*............$....310............
|
||||
..........................@.........*.............888....&........-.....*....3....154....790..24..847/......767......933..............#.....
|
||||
.....790...684....669............626....324....@.......862......77..+....627..*......*....*.....................809*.............922..913...
|
||||
......*.............*.....*243..................372..........+.......878.......155.36...656....%..........917.............#.....*...........
|
||||
....935....184/....888.357.....917..797....293...............427............................665..766.........*.........986.......671........
|
||||
................................*..................................93.247................$..........*641....598..........................459
|
||||
........................922*295..664....&..........188%.481..............*.............35.............................806.......107*32..*...
|
||||
..........261.$113.....................456...................916..480....942.848.....................781*3.146..168....*......=..........222
|
||||
137.......*.................243..............783*......940......*....*........*......155......*25...........*...$...902........217..........
|
||||
.../....460.....140..170.........................283..*......647...501...-.359...365.......491.........869..103.............................
|
||||
...............*......$.........941..................75................282....../...............786*.....*......741.686......24.............
|
||||
527........................*109.*...522..................*79.....#575...............................810...373..*......*..444*...............
|
||||
...*..&37...............331.................714*..............................62$...43..%.......................983.446.............79......
|
||||
886.............................................40.................506.421..............726............171...............676*964.....*......
|
||||
................651#...301..500..497.......601*......%...263*675......*.......136*56..................*.............836...............264...
|
||||
........229....................#...&...156.....495..769......................................597.......355.............#..365...379.........
|
||||
....539.......%...933...................*..138..................402...730.......................*718.......12................$.*............
|
||||
....*........63...*....................368.....691....................*..............................#...../.....772............116.........
|
||||
....501............777.......673..728......613.&...467....688.../..526...387...726.......@568.260..456..............*.......64..............
|
||||
403...........................*.....................*.....*...311.......&.....*....387.........*.......437..$901...744.929..................
|
||||
...*.......................825.........&...........867.........................994...@........346.......................*.............285...
|
||||
....260........892*.................294..................................#............................................172.....730...........
|
||||
........743........610.........954......44@.46....606$..................718......963.970.........863.....772..............*......*..........
|
||||
284.......*............950.....*..............@..................=.............*......%.............*425.../..=625.....479.305.331...-......
|
||||
...*...139................*...976........32........-.............655..........233.373.....870..431..................................17......
|
||||
399...........820........844.........%....../744.353.&...................370........*......*...........@...135..700............*............
|
||||
....*364.#....../....266...........295................486..........932..........98.311....319..........599....*.&.......98.#....202.........
|
||||
.........768.........*.........982...........................413....*....185.....+................637.......48...........*.132..............
|
||||
.....................239........*.....................551.......*38.111....*.@.....778...856*25........605...../....355.........230.........
|
||||
...105..........*.............879........264....177.....*.783............839.682......*..............*.....-....756....*...415.*.....589-...
|
||||
.............438....................428....*.........465.....*194....................803....100...955.238..836.........767.%...555..........
|
||||
.....86....&........702........./..*.......363.........................=630.737#............%...........................................259.
|
||||
......*....256.......*.......+..57..806.......................591*............................*348....829...................+460............
|
||||
.....................244....6.....................................789......................687..............................................
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112
day3/src/main.rs
Normal file
112
day3/src/main.rs
Normal file
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@ -0,0 +1,112 @@
|
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use std::{
|
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fs::File,
|
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io::{BufRead, BufReader},
|
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ops::Range,
|
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};
|
||||
|
||||
fn main() {
|
||||
let grid = read_grid();
|
||||
let grid_ref: Vec<_> = grid.iter().map(AsRef::as_ref).collect();
|
||||
let numbers = Number::discover(&grid_ref);
|
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let part1_result = part1(&numbers, &grid_ref);
|
||||
let part2_result = part2(&numbers, &grid_ref);
|
||||
println!("part 1: {part1_result}\npart 2: {part2_result}");
|
||||
}
|
||||
|
||||
fn part1(numbers: &[Number], grid: Grid) -> i32 {
|
||||
let mut total = 0;
|
||||
for number in numbers {
|
||||
if number.is_part(grid) {
|
||||
total += number.value;
|
||||
}
|
||||
}
|
||||
total
|
||||
}
|
||||
fn part2(numbers: &[Number], grid: Grid) -> &'static str {
|
||||
"unsolved"
|
||||
}
|
||||
|
||||
type Grid<'a> = &'a [&'a [char]];
|
||||
|
||||
fn read_grid() -> Vec<Vec<char>> {
|
||||
BufReader::new(File::open("input").expect("input"))
|
||||
.lines()
|
||||
.map(|line| line.expect("read").chars().collect::<Vec<_>>())
|
||||
.collect()
|
||||
}
|
||||
|
||||
#[derive(Debug, Default, Clone, PartialEq, Eq)]
|
||||
struct Number {
|
||||
value: i32,
|
||||
line_number: usize,
|
||||
location: Range<usize>,
|
||||
}
|
||||
|
||||
impl Number {
|
||||
fn discover(grid: Grid) -> Vec<Number> {
|
||||
let mut numbers = vec![];
|
||||
for (line_number, line) in grid.iter().enumerate() {
|
||||
let mut i = 0;
|
||||
while i < line.len() {
|
||||
let mut chr = &line[i];
|
||||
if chr.is_ascii_digit() {
|
||||
let start = i;
|
||||
let mut text_of_number = String::new();
|
||||
while i < line.len() && line[i].is_ascii_digit() {
|
||||
text_of_number.push(*chr);
|
||||
i += 1;
|
||||
if i == line.len() {
|
||||
break;
|
||||
}
|
||||
chr = &line[i];
|
||||
}
|
||||
numbers.push(Number {
|
||||
value: text_of_number.parse().expect("parse number"),
|
||||
line_number,
|
||||
location: start..i,
|
||||
});
|
||||
}
|
||||
i += 1;
|
||||
}
|
||||
}
|
||||
numbers
|
||||
}
|
||||
fn proximity_check(&self, grid: Grid, check: impl Fn(char, (usize, usize)) -> bool) -> bool {
|
||||
for digit_index in self.location.clone() {
|
||||
for xoff in [-1_i32, 0, 1] {
|
||||
for yoff in [-1_i32, 0, 1] {
|
||||
if xoff == 0 && yoff == 0 {
|
||||
// skip the actual number
|
||||
continue;
|
||||
}
|
||||
let line_number: i32 = self
|
||||
.line_number
|
||||
.try_into()
|
||||
.unwrap_or_else(|_| panic!("invalid line number {}", self.line_number));
|
||||
let line_number: usize =
|
||||
(line_number + yoff).max(0).try_into().unwrap_or_else(|_| {
|
||||
panic!("bad yoff {yoff} at line_number {line_number})")
|
||||
});
|
||||
let y = line_number.min(grid.len() - 1);
|
||||
let line = grid[y];
|
||||
let digit_index: i32 = digit_index
|
||||
.try_into()
|
||||
.unwrap_or_else(|_| panic!("invalid digit {}", self.line_number));
|
||||
let digit_index: usize = (digit_index + xoff)
|
||||
.max(0)
|
||||
.try_into()
|
||||
.unwrap_or_else(|_| panic!("bad xoff {xoff} at digit index {digit_index}"));
|
||||
let x = digit_index.min(line.len() - 1);
|
||||
let chr = line[x];
|
||||
if check(chr, (x, y)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
false
|
||||
}
|
||||
fn is_part(&self, grid: Grid) -> bool {
|
||||
self.proximity_check(grid, |chr, _| chr != '.' && !chr.is_ascii_digit())
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue