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authorSanto Cariotti <santo@dcariotti.me>2024-02-09 11:42:04 +0100
committerSanto Cariotti <santo@dcariotti.me>2024-02-09 11:42:04 +0100
commitdb2686c798378738020a0951a521358586e21aa0 (patch)
tree8d585ceb9bdc302ae10a2458cc343be40d60acb7 /2023/day11/src
parent67dff579e91c13ef40ecb17d14497d145861c5e7 (diff)
Add day2 in OCaml
Diffstat (limited to '2023/day11/src')
-rw-r--r--2023/day11/src/lib.rs130
1 files changed, 0 insertions, 130 deletions
diff --git a/2023/day11/src/lib.rs b/2023/day11/src/lib.rs
deleted file mode 100644
index 66c95c4..0000000
--- a/2023/day11/src/lib.rs
+++ /dev/null
@@ -1,130 +0,0 @@
-fn expand(m: &mut Vec<Vec<i16>>, ch: i16) {
- let rows = m.len();
- let mut cols = m[0].len();
-
- let mut i = 0;
- while i < rows {
- if m[i].iter().filter(|&x| *x != 0).count() == 0 {
- m.insert(i, vec![ch; cols]);
- i += 1;
- }
- i += 1;
- }
- let rows = m.len();
- i = 0;
-
- while i < cols {
- let mut c = 0;
- for j in 0..rows {
- if m[j][i] != 0 {
- c += 1;
- }
- }
-
- if c == 0 {
- for j in 0..rows {
- m[j].insert(i, ch);
- }
- cols += 1;
- i += 1;
- }
- i += 1;
- }
-}
-
-pub fn part1(input: &str) -> u32 {
- let mut res: u32 = 0;
-
- let mut m: Vec<Vec<i16>> = input
- .trim_end()
- .split('\n')
- .map(|y| y.chars().map(|x| if x == '#' { 1 } else { 0 }).collect())
- .collect();
-
- expand(&mut m, 0);
- let mut hs: Vec<(usize, usize)> = vec![];
- let rows = m.len();
- let cols = m[0].len();
- for i in 0..rows {
- for j in 0..cols {
- if m[i][j] != 0 {
- hs.push((i, j));
- }
- }
- }
-
- let n = hs.len();
- for i in 0..n {
- for j in i + 1..n {
- res += ((hs[j].1 as i16 - hs[i].1 as i16).abs()
- + (hs[j].0 as i16 - hs[i].0 as i16).abs()) as u32;
- }
- }
-
- res
-}
-
-pub fn part2(input: &str) -> u32 {
- let mut res: u32 = 0;
-
- let mut m: Vec<Vec<i16>> = input
- .trim_end()
- .split('\n')
- .map(|y| y.chars().map(|x| if x == '#' { 1 } else { 0 }).collect())
- .collect();
-
- expand(&mut m, 1);
- let mut hs: Vec<(usize, usize)> = vec![];
- let rows = m.len();
- let cols = m[0].len();
- for i in 0..rows {
- for j in 0..cols {
- if m[i][j] > 0 {
- hs.push((i, j));
- }
- }
- }
-
- let n = hs.len();
- for i in 0..n {
- for j in i + 1..n {
- res += ((hs[j].1 as i16 - hs[i].1 as i16).abs()
- + (hs[j].0 as i16 - hs[i].0 as i16).abs()) as u32;
- }
- }
-
- res
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
-
- #[test]
- fn example_part1() {
- let input = include_str!("../example.txt");
- let result = part1(input);
- assert_eq!(result, 374);
- }
-
- #[test]
- fn input_part1() {
- let input = include_str!("../input.txt");
- let result = part1(input);
- assert_eq!(result, 9623138);
- }
-
- #[test]
- fn example_part2() {
- let input = include_str!("../example.txt");
- let result = part2(input);
- assert_eq!(result, 1030);
- }
- //
- // #[test]
- // fn input_part2() {
- // let input = include_str!("../input.txt");
- // let result = part2(input);
- // assert_eq!(result, 71585);
- // }
-}