Day 3 complete.

This commit is contained in:
Drew Galbraith 2023-12-03 21:01:49 -08:00
parent 3cff3b6785
commit d5ac973448
2 changed files with 269 additions and 0 deletions

140
input/day03.txt Normal file
View File

@ -0,0 +1,140 @@
......124..................418.......587......770...........672.................564............................438..........512......653....
665/...*......................*599.....*.983......794*..140..*...........@..963*....................445........*......*.........709.....*...
.......246.....581......701..........108....%.532........../.73..699...927............................*....579.354.464..............298..86.
........................*.....@...............%........$............+.........167..................408............................$..*......
....914......335.......513..245....106=...............974................749.....*.702.......589........803........*176..386.....631..340...
....*.......*...........................48...203@.............767......*..../.362...$......................*159.381.........................
..620.....430.....612.507.........365.....................335../........938.................154.........@....................682............
.....................*...........*..................470.........................889...........*.....@.489.....453$.329..334............86...
..........324...............431..58..533-../..-...../......*405.................$.............47..474..............*......*.......930.*.....
............/.....*350....................400.502...............$...........168.......855.635....................258.......794...+.....846..
........................560...72.945..............866..........783..328....*....116......*...........179..904........682$..........333......
.....674...........152....*....*....*815.........*........$609.............737../................583*........*.84..............767*.........
..../......55@....+........645.914................987..................*..........972.........#.......80..750........588................=260
.....................349&...................../.................754.407..203*720./.......207...14...............=88...+...767...............
.........*824.............890.......269....893..271*139..645....*...................233...%................428...........*.........79.......
..........................#............*.................@.../...316...844.............*........@439...287*......*974.....182...............
....*.....50.......671+.................267........634*....417............-.598.....531....891................331................358.....341
.883.561..*....428.........../14...742...........@.....654.....809../716.......*456.....=....*........$..............................607....
...........835..*..796*............*..............321......612*.......................299..203....962..431..........277.......40......$.....
......+591.....916.....294.........446..111......................237*77.....&........................-................*...150*....*......873
....%..................................*.....................819............522.................922................738.........214.595..&...
...552.........*...............+545.....627...........601......*..801..............867.....954....*.984.....752..........*830...............
............276...939.............................979....*.........*........866*.....*.......*..963.-.................172...................
278................*......@..........52........51*....851..766@..515.949=.......736...456...107............796.@668..................#......
...*...431.................616..............................................79..................651.806.....%.............554.........740...
.969...-............................-..........721.......555.657....+.........*....#....704........*.................556...*....196.........
................*228..........312.201.....490...%.........*..#...815........896..417.....=....890.....274....884.683*.......327...*.........
......@......742.............*........393*....=........715..............535...................*.........................529.....741.....#...
.......386........244......196...............815...........869....+580...*...................71........654...454..346=.$.............909....
....................................................265...$.............738..401...984...........265.....*......*...............-...........
.......=.....184....148....14.........685...990..................80..=....../........$.......511....%.....424..400......184..551............
.....71......*.......@............812.........&..$.....573*613.....*.677.......#.......299..&.......................933.....................
...=.......142...917...-989....76*....230...*....105.............920.....+......371.......*............660..692.........553*........%.......
341................&.....................=.29.............643.82......*...714............222....934......*....@.............178..581..+.....
...............874...129.......................739*971.......*.......176.............3.@...........*..219..40..........#.............168....
.....179..............*...741.......524...................................757.=633..*...136......63........*..........399...................
.......*....315....307....*.....%..*.............718......371....=....654*..........89...................194........................+.23....
.....737.........&........540.253...80...273......*.........&...773............492.................722........113....970..=195....702.......
..............869..........................*.539...434...............393*933......*........679.874..%......=....*...........................
............................$....148......43...*............@....................67.876........=......./..388..920......423.........-.......
..118*773.142....%565.......397....*.........352..#..........217......................*....865......257..................*........421.415...
............&.........898.............607..........897...631.................787...840.......*..............684.........34.359.........*....
........995....235.....@.........#.......*.932*.............*73...940..997..#..........&.&...942...$.727..........115.........*122....380...
................-................131...........265...827...........*....*............797.490.....845..*..........#....+823..................
............96.......................383.......................53.292....19...536......................42..668..................579......666
...-..487............680..&...*45...&........801.............*.*.................-........374.....................128..109.......%....*.....
.611.+..............*.....151................=......739....622..572................103...........683.....245..748*....*............298.67...
........*735......911...................562........@.........................458.....*...753........................275.362*................
.....683......702.....736.230.....457.........................13................*..126...........458........................890.........992.
...............*......*..........*.......499........10.........+...227.227...542..........................167....661....................*...
.............691.7....135.62..157..570..*....304......*...........*......*................$589....#946....*.........*............132....190.
........687.......*.........*............768..-...453..643.........844....706...%......................509........767......*................
...........*....485......859...........*.........................................92...268.........193.....................385.....991*722...
...-.....18..................217......853................................28..............*........@.......+......302........................
...103......60=..*352...........*916........351.....347..=..452.810....................304..........539.346.......*....................*....
......................610..........................=....990.....=...819....*496..797.................*........946..44..................261..
.......630.............*........882.........................173....*...............*....903....44.....318.212.@.......-.....................
.......-......-...........@..=.....*841.....812.......515......*....713....+.....566....*...................*......344..297....356.430..%...
.........*482..453.......279.554./............#..320..*.....................671......873........&...637$.....413........@.........*.....906.
....263...........................861......*....*.....908......365....123.......494.............134.................808.......*.....*.......
..........465.....520%.....................432.76..........160........*......................26.......218....14.......*......598.874.844....
...417......%.............138.....................$..............84..............272...573.....*.296.*................585...................
...*................596...&......................783.....992..........*....982.....*.........857..*...314...797..265........*....*..547.#...
....260........75....*...........389....616=.........5.....*.....695..427..*....780....-425......872..........*...*.......49....599.....19..
..............+.......389...........*33.........596.......600......*......67......................................567.......................
...802............................$.....302....*.....-93........434............$........554../339..............................277..........
.....*....................$.....822.....*.....89...........233..........602.....911.....#..........958............475......773*.........%989
..849.............228..868..217......679.......................99*...../............................*.......................................
.........253.........*......*....................643..............796......-200...355..469.........174......=........174....279.638.........
295*22..*............664...462.-238...................&765.........................*........................241..............$.......%......
.......937.....25....................422.264.................244...........628...340..................106.........................551.....82
897*.........../..60.......361.......*......#.....164.........*.......804*....%..........670*194........#.......#..........83...............
....754............*.................51..47.......*.........487...585.....202........838..................28...734...*457..............427..
............155...705......................*....912.....887..........................*....*875...........*........................&.........
..952.621......*.............+983...........832.....783....@.......432#...+........530.223.............456......462...257*100......763......
..........=..905........................892...............................262..85..........#..................-../.....................671..
.........994...............476.............%.665...524...53*........939*........*..........703..497.........186............=.567........*...
154...............$412......&..........-.....&.....-........41.109......282......676...........%....&80.@...............439...*.....@...997.
........+130..................296.....308................@.....*...902..................................77....833.....%.....932.102.48......
................407%.%685......*..........927.=222........426.450...*........12.....82...../..570................*...798..........*.........
..825.....................923.429......#..*........#630...........409..314*..........*...569.....*....273..648...961.............279........
...=..827=..........293.....#.........875.401.............457.433..........690.....600............929......*..............*245.......93..94.
.............557.......*.......................52........@..........284.......................450......................986..........*.......
........................463.....583..708...........................+........101....834.445.......*.....336...................694...333......
....556....923................./......*..433.....182....181.........................*..*......492..598.*............260.....*...............
......*.....*....430...............960....*...+..&.......*..=96.....628.282...@355.833.883...........*..468...420...........288.............
...140...682......*..945...150............7.654....+83.941...........*......@................#....7.780.......*......922.........334........
.............365..49.......$...590............................608.........503......./......36.....*.......74...340.....*....................
..........@..*.......870.-.....*...284*556................288..*...@.............$.526............587....*...........387....................
.......188....626.$......372.733.............................*..97.466.....776.541......................413.950..........696.162............
...../.............755...........62......99...............224...............-.........333......................*..337.....*....#......%233..
442..7.......=...................#...........875*705.548..............963...............*......180.....581...350.....*....513...............
..............377....................................*.........#......*.........291......981..*...........*..........74..............&......
......895.........644...................613.......540...........756.............%............390.263....754........#.....713-.....450.......
...85*....$.............297......%.........*..........156............974./870....................*...........12....426.................483..
.......774............#..*.....872.............361......-...196..................849...........419............*.........221....667..........
...................961....604...........644....*...............*........../927......*......503................124........-......../...238...
....370.............................531*......174.693.........349..................495.......*....925.......................................
.....+...104....582...602*604...123..................*..896..........71@.....................767...............573@....656......%...........
140........*...@...............*.........-........592..*....................806..692.....511...............755..........*......917...636....
..........905.......462.....+...655......860..150.....800..903.......8*920..........*867.@...................=..........269.................
....582..................217........842.........*...........*..................912...............551...615.......-..........343*129....+....
....*........................./.....................752..347...275...127.@........*.....804.....#....+.#.........252...845............671...
..862..........38..........293....429...@............*.......*...#.....*..245....330.......*18.....182.....$538..........&..725.............
.................=.............46*....696.............581.664.........608...........................................%.......=...............
...*724.....977.............................../................565...............#15...............................782.........359....$.....
529.....373.*............198.983.....980..559..592...100.579......*889..145..839..............790.....496....193......................545...
.........*..560..769.......*.....775...*.............*....@..104................*...%..820.....*......*.....*.............245...160.........
.....338............@......28.......*...725.687....761......%...............%..423.773..*.....315....765..69.................*...*..........
.851*.....619...333..............907..........*.........512....536..........98.........434....................48.613.973..941...554..751....
....................*564....122.............608........$.........-.........................48.........435.......*.......*............&......
...........165*967...........-..799.186.938......@.615...317........................630...........551*................345...................
....968............281.546.......*.....*.......225.......*...162....372.........&85...+...177@...........719..55................360*........
.......*.......%.......#.......226....................341.....*......*.............................341.........*...........989&.....321..618
....884..554.163...%...............*423.233.................653...557....$....910...................*...........109....772..................
..................854......167..560......@.....311...958..............492.....*.....*877.........@...911..797%...........*..................
....852.815.....9.................................*....#...../..941.........960..494........56.375.....................50..+......=...106...
....*......*461.&.......739....$..........=.$562.276.......408.....=.....................=...%.................769.........893..463..*......
.133..................-........797.....313...........................................20.214.....357..776.471......*687.@.............527....
.......14........899...845..........*..........+.....46........634........914.....84../...............*.....*780.......878..%36.435.........
542.....*...........$........*833...257..329-.147...........+........150..*......*.......907...........429.........................*....#...
.....517..799.44@.........230..........................477.579...........836......839.....-.....................964.704.............194..310
298.......*....................307..800......346.65.....*..........414........@.......619........&442.............*..*......................
...........510...+.....837.237*.........../.....*.....270.....818$..+..........27....*.................163.....140....647....764.163........
................181...*..........536#....335......................................610..170...............*.-....................*.......&...
.......................832........................#........&........611.........................&55...428..472....586......111........768...
.......763.....................................461.........381......-............566..814.....*.....................*........./............8
.............+.......................318............695............................=..%....323.756............711..663............827.......
...........526....=....675...353&.....@..982#......*..................+.62...880+..................631.......$......................-.118...
..................655....*....................795..30...922*.......978...+.&.........539...........-....719.................599.............
......2...574%..................#.698...475.....*...........652./...........464.163$...*..338*966.........................../.....534..386..
......*.......................404..#............747...703........231...-...............................................................*....
.......906.................................&575.........&....457.......633...395..761...355.#780....3+......799+...............496...264....
311............967.682............%.838...........253..........@..551.......@....*.....*.............................487.........*..........
..........@.......*......925....376....&...419......=.............*..............20..952.111/....648.&........748................834..706...
..443....940.............*....................*..........................820.684...................@.755........*........106.283............
..............397.........803...84............627..........704.983..........*................522............................*....541........
.....32....$.....#...643*..............116........./905......*..../...........311......811$.*........*890..........924..670........=....882.
......*.....81.....*.....636.......317...*...................899.............*....*698............626....................-..+..@.......*....
.......877......256.714...................825.........458....................869..............................54............28.823..110.....

View File

@ -1,3 +1,4 @@
use std::collections::HashMap;
use std::env;
use std::io;
@ -152,6 +153,132 @@ fn get_possible_games() -> (u32, u32) {
(sum, power_sum)
}
fn record_gear(num: u32, gear: usize, gears: &mut HashMap<usize, Vec<u32>>) {
println!("Gear {}", gear);
match gears.get_mut(&gear) {
None => {
let mut vec: Vec<u32> = Vec::new();
vec.push(num);
gears.insert(gear, vec);
}
Some(v) => v.push(num),
}
}
fn is_part_number(
r: usize,
c: usize,
s: usize,
part_table: &Vec<String>,
n: u32,
mut gears: &mut HashMap<usize, Vec<u32>>,
) -> bool {
let is_symbol = |c: char| c != '.' && !c.is_numeric();
// Check above.
if r > 0 {
let mut c_: usize = if c > 0 { c - 1 } else { c };
let row: &Vec<char> = &part_table[r - 1].chars().collect();
while c_ <= c + s && c_ < row.len() {
if is_symbol(row[c_]) {
if row[c_] == '*' {
let index = (r - 1) * row.len() + c_;
record_gear(n, index, &mut gears);
}
return true;
}
c_ += 1;
}
}
// Check Adjacent.
let adj_row: &Vec<char> = &part_table[r].chars().collect();
if c > 0 {
if is_symbol(adj_row[c - 1]) {
if adj_row[c - 1] == '*' {
let index = r * adj_row.len() + c - 1;
record_gear(n, index, &mut gears);
}
return true;
}
}
if c + s < adj_row.len() {
if is_symbol(adj_row[c + s]) {
if adj_row[c + s] == '*' {
let index = r * adj_row.len() + c + s;
record_gear(n, index, &mut gears);
}
return true;
}
}
// Check below.
if r + 1 < part_table.len() {
let mut c_: usize = if c > 0 { c - 1 } else { c };
let row: &Vec<char> = &part_table[r + 1].chars().collect();
while c_ <= c + s && c_ < row.len() {
if is_symbol(row[c_]) {
if row[c_] == '*' {
let index = (r + 1) * row.len() + c_;
record_gear(n, index, &mut gears);
}
return true;
}
c_ += 1;
}
}
false
}
fn sum_part_numbers() -> (u32, u32) {
let mut part_table: Vec<String> = Vec::new();
let mut buffer: String = String::new();
while io::stdin().read_line(&mut buffer).unwrap() > 0 {
part_table.push(buffer.trim_end().to_string());
buffer = String::new();
}
let mut sum = 0;
let mut gear_table = HashMap::new();
for r in 0..part_table.len() {
let mut c = 0;
let mut part_rem = &part_table[r][..];
loop {
match part_rem.find(char::is_numeric) {
None => {
break;
}
Some(ind) => {
part_rem = &part_rem[ind..];
c += ind;
let is_non_num = |c: char| !c.is_numeric();
let end = match part_rem.find(is_non_num) {
None => part_rem.len(),
Some(i) => i,
};
let num: u32 = part_rem[..end].parse().expect("Couldn't parse number");
if is_part_number(r, c, end, &part_table, num, &mut gear_table) {
sum += num;
println!("{} {}", num, gear_table.len());
}
part_rem = &part_rem[end..];
c += end;
}
}
}
}
let mut gear_sum = 0;
for (_, vec) in gear_table {
if vec.len() == 2 {
gear_sum += vec[0] * vec[1];
}
}
(sum, gear_sum)
}
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() < 2 {
@ -163,6 +290,8 @@ fn main() {
"day1b" => println!("Sum: {}", get_calibration_digits_alnum()),
"day2a" => println!("Sum: {}", get_possible_games().0),
"day2b" => println!("Sum: {}", get_possible_games().1),
"day3a" => println!("Sum: {}", sum_part_numbers().0),
"day3b" => println!("Sum: {}", sum_part_numbers().1),
_ => println!("Unrecognized day: {}", args[1]),
}
}