add 03
This commit is contained in:
timeshifter
Generated
+30
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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 = "aoc"
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version = "0.1.0"
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[[package]]
|
||||
name = "aoc2024-03"
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version = "0.1.0"
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dependencies = [
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"aoc",
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||||
"itertools",
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||||
]
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||||
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[[package]]
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||||
name = "either"
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version = "1.9.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
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||||
|
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[[package]]
|
||||
name = "itertools"
|
||||
version = "0.12.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ba291022dbbd398a455acf126c1e341954079855bc60dfdda641363bd6922569"
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dependencies = [
|
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"either",
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]
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@@ -0,0 +1,10 @@
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[package]
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||||
name = "aoc2024-03"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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aoc = {version = "*", path = "../lib/aoc"}
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itertools = "0.12.1"
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@@ -0,0 +1,10 @@
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467..114..
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...*......
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..35..633.
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......#...
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617*......
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.....+.58.
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..592.....
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......755.
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...$.*....
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.664.598..
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+140
@@ -0,0 +1,140 @@
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.......497...........................858...923...128..................227..801........487.....664...........................................
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436........765..............140.......+....................859.............*.........+.................960........668.......................
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...*982...........=..........=....203......266.263...375*....=...402....691..-....................*..........575....................13......
|
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|
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.....323........870.........+...........$.........466......453........................297...........*............*..........................
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......*3.........*.626.68...419...740...........................806...976.......875.........174..............735.............=488...........
|
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|
||||
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|
||||
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|
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|
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|
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|
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|
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........=........158.......$.....=...........200......409....982.....................46................126.....517....303.647.660...........
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...530....=......*..........704.69...................*.......*..................@879........589..131.................*........*.............
|
||||
......*..871...672....................611*........415.......283.569.21....842/........-109.&.......*.......157$...719.......679.$...........
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....664..............664......668.........203....................&...%............................14..................427.......833..484....
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|
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|
||||
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||||
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|
||||
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967...................................25....234...........................306....281..........=..36..918.432....../406........344...$.......
|
||||
.....700*610.......=...839......917......33......610@................537....=....@............................%........20.402.@.....926.....
|
||||
..............%.768...*....................*...@............93..161.%...............74$......%.........96..298..........%..+............+519
|
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...........925.......586...................264..85...721....*...*.............................371.................822.=.....................
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|
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.....666......*....844....515.......*..............+114..............977...............&...393........*.........$.800...........*...........
|
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|
||||
....691.....$.......756...165.....................596.32...%........#..280.259$..........398..............425.............*....719..796.....
|
||||
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|
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|
||||
...*927..........352.......148..........401....459...+....998......$783........@............444..$.......959..106.366.......................
|
||||
............190..........*......385.............*....846......................907.826..585.......447.441..*..*............7......871........
|
||||
.................142....944....$.................634.............587..@..930..........*......935.....*...819.29.....3......*35..............
|
||||
......967....415*......................=980.....................%....58.-......317..74......../.....922..............-.207........../.......
|
||||
.........................................................................................................175....................369.233.....
|
||||
.........................+....645.$........%.....620.+429....951......616.................................*............524$.................
|
||||
....799...551*602........920..+....503..654....-...*............*....=......395.........451....263.......897..................370...........
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
.........../........./...292...............#..........-....*....@307......661..........*.210......135....932%...........992..54..191..931...
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
.........................131.....*17......191.33.306...../.....144..503......491.............................................298...415......
|
||||
...................$...................................426.........*...............526.669.....&498..698...$............447.....+...........
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
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|
||||
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||||
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|
||||
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||||
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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||||
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|
||||
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|
||||
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|
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|
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|
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
.....+....234...904.323..=..............&.894..........439.@838............*.....*........47........555........*............*........932....
|
||||
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|
||||
..................620............806......866.................559......440...........................310...........................590..547.
|
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+229
@@ -0,0 +1,229 @@
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use itertools::Itertools;
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use aoc::read_grid;
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||||
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||||
const WIDTH: usize = 140;
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const HEIGHT: usize = 140;
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fn main() {
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||||
let content = read_grid("input.txt");
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||||
println!("{} x {}", content[0].len(), content.len());
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||||
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||||
part_a(&content);
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part_b(&content);
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||||
}
|
||||
|
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fn part_a(grid: &[Vec<char>]) {
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// let mut sum = 0;
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let coordinates: Vec<_> = find_symbol_coordinates(grid)
|
||||
.into_iter()
|
||||
.flat_map(get_adjacent_coordinates)
|
||||
.unique()
|
||||
.collect();
|
||||
|
||||
let numbers = find_numbers_with_coordinates(grid);
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||||
|
||||
let mut sum = 0;
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||||
|
||||
for number in numbers {
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||||
'inner: for coordinate in &coordinates {
|
||||
if number.contains(*coordinate) {
|
||||
sum += number.value;
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||||
break 'inner;
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||||
}
|
||||
}
|
||||
}
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||||
|
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println!("{sum}");
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||||
}
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fn part_b(grid: &[Vec<char>]) {
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||||
let coordinates = find_star_coordinates(grid);
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||||
|
||||
let numbers = find_numbers_with_coordinates(grid);
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||||
|
||||
let mut result = 0;
|
||||
let mut adjacent_numbers = vec![];
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||||
|
||||
for coordinate in coordinates {
|
||||
adjacent_numbers.clear();
|
||||
|
||||
let adjacent = get_adjacent_coordinates(coordinate);
|
||||
for number in &numbers {
|
||||
'outer: for coordinate in &adjacent {
|
||||
if number.contains(*coordinate) {
|
||||
adjacent_numbers.push(number);
|
||||
break 'outer;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if adjacent_numbers.len() == 2 {
|
||||
result += adjacent_numbers[0].value * adjacent_numbers[1].value;
|
||||
}
|
||||
}
|
||||
|
||||
println!("{result}");
|
||||
}
|
||||
|
||||
fn is_symbol(c: char) -> bool {
|
||||
!(c.is_ascii_digit() || c == '.')
|
||||
}
|
||||
|
||||
fn find_symbol_coordinates(grid: &[Vec<char>]) -> Vec<(usize, usize)> {
|
||||
let mut result = vec![];
|
||||
for (y, line) in grid.iter().enumerate() {
|
||||
for (x, character) in line.iter().enumerate() {
|
||||
if is_symbol(*character) {
|
||||
result.push((x, y));
|
||||
}
|
||||
}
|
||||
}
|
||||
result
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct Number {
|
||||
value: usize,
|
||||
x_min: usize,
|
||||
x_max: usize,
|
||||
y: usize,
|
||||
}
|
||||
|
||||
impl Number {
|
||||
fn new(value: usize, x_min: usize, x_max: usize, y: usize) -> Self {
|
||||
Self {
|
||||
value,
|
||||
x_min,
|
||||
x_max,
|
||||
y,
|
||||
}
|
||||
}
|
||||
|
||||
fn contains(&self, (x, y): (usize, usize)) -> bool {
|
||||
self.y == y && self.x_min <= x && self.x_max + 1 > x
|
||||
}
|
||||
}
|
||||
|
||||
fn find_numbers_with_coordinates(grid: &[Vec<char>]) -> Vec<Number> {
|
||||
let mut result = vec![];
|
||||
let mut in_number;
|
||||
let mut accum = vec![];
|
||||
for (y, line) in grid.iter().enumerate() {
|
||||
in_number = false;
|
||||
accum.clear();
|
||||
for (x, character) in line.iter().enumerate() {
|
||||
if character.is_ascii_digit() {
|
||||
in_number = true;
|
||||
accum.push(character);
|
||||
if last_digit_in_line(x) {
|
||||
let number = build_number(&accum, x, y);
|
||||
result.push(number);
|
||||
}
|
||||
} else if in_number {
|
||||
in_number = false;
|
||||
let number = build_number(&accum, x, y);
|
||||
result.push(number);
|
||||
accum.clear();
|
||||
}
|
||||
}
|
||||
}
|
||||
result
|
||||
}
|
||||
|
||||
fn last_digit_in_line(x: usize) -> bool {
|
||||
x == WIDTH - 1
|
||||
}
|
||||
|
||||
fn build_number(accum: &Vec<&char>, x: usize, y: usize) -> Number {
|
||||
Number::new(
|
||||
accum.iter().cloned().collect::<String>().parse().unwrap(),
|
||||
x - (accum.len()),
|
||||
x - 1,
|
||||
y,
|
||||
)
|
||||
}
|
||||
|
||||
#[rustfmt::skip]
|
||||
fn get_adjacent_coordinates((x, y): (usize, usize)) -> Vec<(usize, usize)> {
|
||||
if x == 0 {
|
||||
vec![
|
||||
(x , y - 1),
|
||||
(x + 1, y - 1),
|
||||
(x + 1, y ),
|
||||
(x , y + 1),
|
||||
(x + 1, y + 1),
|
||||
]
|
||||
} else if y == 0 {
|
||||
vec![
|
||||
(x - 1, y ),
|
||||
(x + 1, y ),
|
||||
(x - 1, y + 1),
|
||||
(x , y + 1),
|
||||
(x + 1, y + 1),
|
||||
]
|
||||
} else if x == 0 && y == 0 {
|
||||
vec![
|
||||
(x + 1, y ),
|
||||
(x , y + 1),
|
||||
(x + 1, y + 1),
|
||||
]
|
||||
} else if x == 0 && y-1 == HEIGHT {
|
||||
vec![
|
||||
(x , y - 1),
|
||||
(x + 1, y - 1),
|
||||
(x + 1, y ),
|
||||
]
|
||||
} else if x - 1 == WIDTH {
|
||||
vec![
|
||||
(x - 1, y - 1),
|
||||
(x , y - 1),
|
||||
(x - 1, y ),
|
||||
(x - 1, y + 1),
|
||||
(x , y + 1),
|
||||
]
|
||||
} else if x - 1 == WIDTH && y == 0 {
|
||||
vec![
|
||||
(x - 1, y ),
|
||||
(x - 1, y + 1),
|
||||
(x , y + 1),
|
||||
]
|
||||
} else if x - 1 == WIDTH && y - 1 == HEIGHT {
|
||||
vec![
|
||||
(x - 1, y - 1),
|
||||
(x , y - 1),
|
||||
(x - 1, y ),
|
||||
]
|
||||
} else if y - 1 == HEIGHT {
|
||||
vec![
|
||||
(x - 1, y - 1),
|
||||
(x , y - 1),
|
||||
(x + 1, y - 1),
|
||||
(x - 1, y ),
|
||||
(x + 1, y ),
|
||||
]
|
||||
} else {
|
||||
vec![
|
||||
(x - 1, y - 1),
|
||||
(x , y - 1),
|
||||
(x + 1, y - 1),
|
||||
(x - 1, y ),
|
||||
(x + 1, y ),
|
||||
(x - 1, y + 1),
|
||||
(x , y + 1),
|
||||
(x + 1, y + 1),
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
fn find_star_coordinates(grid: &[Vec<char>]) -> Vec<(usize, usize)> {
|
||||
let mut result = vec![];
|
||||
for (y, line) in grid.iter().enumerate() {
|
||||
for (x, character) in line.iter().enumerate() {
|
||||
if *character == '*' {
|
||||
result.push((x, y));
|
||||
}
|
||||
}
|
||||
}
|
||||
result
|
||||
}
|
||||
@@ -6,3 +6,12 @@ pub fn read_file(filename: &str) -> Vec<String> {
|
||||
f.read_to_string(&mut buffer).unwrap();
|
||||
buffer.lines().map(|s| s.to_owned()).collect()
|
||||
}
|
||||
|
||||
pub fn read_grid(filename: &str) -> Vec<Vec<char>> {
|
||||
let result = read_file(filename)
|
||||
.into_iter()
|
||||
.map(|line| line.chars().collect())
|
||||
.collect();
|
||||
|
||||
result
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user