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Rust/2024/16: add solution

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Felix Bargfeldt 2024-12-16 07:09:31 +01:00
parent eb05c7d6b1
commit 3dddba034a
Signed by: Defelo
GPG key ID: 2A05272471204DD3
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README.md
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@ -9,13 +9,13 @@
|[2021](https://adventofcode.com/2021/leaderboard)|**136**|438|13.41% (of 1014)|0.0532% (of ≥255548)|
|[2020](https://adventofcode.com/2020/leaderboard)|**621**|46|65.23% (of 952)|0.3146% (of ≥197402)|
## [2024](https://adventofcode.com/2024) ([<img height=18 src=".assets/rs.svg"> Rust](Rust/2024): 15/25 | [<img height=18 src=".assets/ua.png"> Uiua](Uiua/2024): 14/25 | [<img height=18 src=".assets/rb.svg"> Ruby](Ruby/2024): 5/25 | [<img height=18 src=".assets/hs.svg"> Haskell](Haskell/2024): 4/25 | [<img height=18 src=".assets/nix.svg"> Nix](Nix/2024): 1/25)
## [2024](https://adventofcode.com/2024) ([<img height=18 src=".assets/rs.svg"> Rust](Rust/2024): 16/25 | [<img height=18 src=".assets/ua.png"> Uiua](Uiua/2024): 14/25 | [<img height=18 src=".assets/rb.svg"> Ruby](Ruby/2024): 5/25 | [<img height=18 src=".assets/hs.svg"> Haskell](Haskell/2024): 4/25 | [<img height=18 src=".assets/nix.svg"> Nix](Nix/2024): 1/25)
|Mo|Tu|We|Th|Fr|Sa|Su|
|-|-|-|-|-|-|-|
|||||||[**1**](https://adventofcode.com/2024/day/1) [<img height=12 src=".assets/rs.svg">](Rust/2024/01.rs "Rust solution for 2024/01") [<img height=12 src=".assets/hs.svg">](Haskell/2024/01.hs "Haskell solution for 2024/01") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgrCsOKKn-KNieKKnOKKnOKLleKIqeKJoEBcbixAIC4K4oipLyviioMo4pmtw5fiip7iirg9fOKMtS3iiKnijYYpCg== "Uiua solution for 2024/01") [<img height=12 src=".assets/nix.svg">](Nix/2024/01.nix "Nix solution for 2024/01") [<img height=12 src=".assets/rb.svg">](Ruby/2024/01.rb "Ruby solution for 2024/01")|
|[**2**](https://adventofcode.com/2024/day/2) [<img height=12 src=".assets/rs.svg">](Rust/2024/02.rs "Rust solution for 2024/02") [<img height=12 src=".assets/hs.svg">](Haskell/2024/02.hs "Haskell solution for 2024/02") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriipwo4pah4oqc4ouVKeKIqeKJoEBcbixAIC4KCkNoZWNrIOKGkCDDl-KKgygvw5fiiaQz4oy1fOKJjcKkMeKMteKXtMKxKeKniC0K4oipLyviiaHil4fiioMoL-KGpeKJoShDaGVja-KWvSniip7iiaAu4oeh4qe74p-cwqR8Q2hlY2spCg== "Uiua solution for 2024/02") [<img height=12 src=".assets/rb.svg">](Ruby/2024/02.rb "Ruby solution for 2024/02")|[**3**](https://adventofcode.com/2024/day/3) [<img height=12 src=".assets/rs.svg">](Rust/2024/03.rs "Rust solution for 2024/03") [<img height=12 src=".assets/hs.svg">](Haskell/2024/03.hs "Haskell solution for 2024/03") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgrilr3irJoxXCjihqXihqfiipnCsOKKnynijYniip_CrOKIqeKMlSJkb24ndCgpIiwiZG8oKSIuLgriiKkoLysvw5fii5Xihpgx4o2JcmVnZXgibXVsXFwoKFxcZCspLChcXGQrKVxcKSIpCg== "Uiua solution for 2024/03") [<img height=12 src=".assets/rb.svg">](Ruby/2024/03.rb "Ruby solution for 2024/03")|[**4**](https://adventofcode.com/2024/day/4) [<img height=12 src=".assets/rs.svg">](Rust/2024/04.rs "Rust solution for 2024/04") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriipziiJjiiaBAXG4uCgripLAg4oaQIOKIqeKKleKWoeKKmSzijZzima3iipviip7iioMtK-KIqeKHocKw4oqf4oq44pazCgrin5woLyviiaHil4coLyvijJUiWE1BUyIp4oqC4p-c4o2a4oeM4oqC4oqDKOKKguKksHziioLiiKniiaHilqHin5zijYkpKQovK-KZreKniCjDl-KIqSgv4oal4omh4omN4pahIk1BUyLiioLin5zijZrih4wp4qSwKTNfMwo= "Uiua solution for 2024/04") [<img height=12 src=".assets/rb.svg">](Ruby/2024/04.rb "Ruby solution for 2024/04")|[**5**](https://adventofcode.com/2024/day/5) [<img height=12 src=".assets/rs.svg">](Rust/2024/05.rs "Rust solution for 2024/05") [<img height=12 src=".assets/hs.svg">](Haskell/2024/05.hs "Haskell solution for 2024/05") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriioPihpjihpniiqLiiprijJUiXG5cbiIuCuKKmSjiipziipzii5XiiKniiaBAXG4sQHwuKQriipwo4pah4oqc4ouVKeKIqeKJoEBcbixALC4KCk1pbiAgICDihpAg4oqi4pa9wqziirjiiIo64p-cKOKJoeKKo-KWveKIiuKKmeKKuOKJoeKKoikKUmVtb3ZlIOKGkCDiioLiioMo4oaZfOKGmCsxKeKKouKKmuKKuD0KU29ydCAgIOKGkCDiipnii4Xil4zijaIo4oqD4oqC4ouFUmVtb3Zl4oqZ4pehTWlufOKJoDDip7vil4wpW10KTWlkICAgIOKGkCDiio_ijIrDtzLiirjip7sKCuKIqSgvK-KJoeKXh01pZOKWvSkgwqwsLOKKuOKJoeKJjSDin5zijZpTb3J04oqZwqQK "Uiua solution for 2024/05") [<img height=12 src=".assets/rb.svg">](Ruby/2024/05.rb "Ruby solution for 2024/05")|[**6**](https://adventofcode.com/2024/day/6) [<img height=12 src=".assets/rs.svg">](Rust/2024/06.rs "Rust solution for 2024/06") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriipziiJjiiaBAXG4uCgpJbml0ICDihpAgwq8xXzDiiqLiipo9QF4KU3RlcCAg4oaQIOKorCjin5wrfOKHjOKNnOKKosKvKT1AI-KXoSjirJpALuKKoSspClZhbGlkIOKGkCAvw5fDl-KIqT7CrzEu4oqZ4pazCgptYXAuW10g4oq4SW5pdAomcOKKuOKnuyDiipnii4Xil4zijaIo4oqDKGluc2VydOKKmTA64oqZ4peMfOKLhVN0ZXApfOKLheKLhVZhbGlkKQoKU2tpcEZvcndhcmQg4oaQIOKNoijin5wrfMOX4oqDKOKLhVZhbGlkfOKJoEAj4qyaQC7iiqErKSkKQ2hlY2tDeWNsZSDihpAgKAogIG1hcC5bXSDiirhJbml0CiAg4o2iKOKKgyhpbnNlcnTiipkwOuKKmeKKgnzih4zijZziiqLCr1NraXBGb3J3YXJk4peMKXzCrGhhc-KWoTriipniioIpCiAgVmFsaWTii4Xil4wKKQoK4pa9PUAu4peh4oqh4oqZ4peMwrBtYXAKJnAgLyviiaF3YWl04omhcG9vbChDaGVja0N5Y2xl4o2c4oqh4ouFQCMp4oqZwqQK "Uiua solution for 2024/06")|[**7**](https://adventofcode.com/2024/day/7) [<img height=12 src=".assets/rs.svg">](Rust/2024/07.rs "Rust solution for 2024/07") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=IyBFeHBlcmltZW50YWwhCgomc2MKCuKKnCjiipnilqHCsOKKguKKnOKLlSniiaBAXG4swqziirjiiIoiOiAiCgpDaGVjayEg4oaQIHwyIOKNoygKICA94oqZwrDCpAp8IOKNoyjijaQuLkNoZWNrIV4w4o2c4oipKOKHjMKw4ouVKeKMneKKgl4wfOKNpC4uQ2hlY2shXjDijaQuPTDiioPil7_Dt3xDaGVjayFeMC0pIDriipnijZzih4zCsOKKgikKCuKIqSgvK8OXKeKJoSjin5w64p-c4oqDQ2hlY2sh4oiYQ2hlY2shKOKNpC4wKeKKmcKw4pahKQo= "Uiua solution for 2024/07")|[**8**](https://adventofcode.com/2024/day/8) [<img height=12 src=".assets/rs.svg">](Rust/2024/08.rs "Rust solution for 2024/08") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriipziiJjiiaBAXG4uCgpWYWxpZCDihpAgL8OXw5fiiKk-wq8xLgpXYWxrICDihpAg4oqZ4ouF4ouF4peM4o2iKOKKgyjiioLiipnil4x84ouF4p-cKyl84ouF4ouFVmFsaWQp4oavMC7iirgtCgriiaEo4pah4qeFPDLiipo9KeKKmcKk4pa94oq44omgQC7il7Tiirjima3in5wowqTCpOKWsykKCkEg4oaQIOKNmuKJoSjilqHilr064p-c4omhVmFsaWTiip_iiKkoK-KKuC0p4pehOsKw4oqfKQpCIOKGkCDijZriiaEo4pah4oqC4oipV2FsayDil6EoOuKKmeKKmeKImCnCsOKKnykKCuKIqSjip7vil7Qv4peH4oqC4o2aL-KXh-KKgikg4oqDQiBBCg== "Uiua solution for 2024/08")|
|[**9**](https://adventofcode.com/2024/day/9) [<img height=12 src=".assets/rs.svg">](Rust/2024/09.rs "Rust solution for 2024/09")|[**10**](https://adventofcode.com/2024/day/10) [<img height=12 src=".assets/rs.svg">](Rust/2024/10.rs "Rust solution for 2024/10") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriipziiaHii5XiirjiiaBAXG4KCk5laWdoIOKGkCDilr09KzHiirjiiqI64p-c4qyaMOKKoSviioIwW-KXoeKIqcKv4p-c4oeM4oehMl3CpAriiKkvK-KJoSjiiKnip7vin5zil7TiiaHil4fiiqPiipnil4xwYXRoKE5laWdofD054oqhKSniipo9MOKfnMKkCg== "Uiua solution for 2024/10")|[**11**](https://adventofcode.com/2024/day/11) [<img height=12 src=".assets/rs.svg">](Rust/2024/11.rs "Rust solution for 2024/11") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriipzii5XiirjiiIorQDDih6ExMAoKTmV4dCAg4oaQIOKNoyjCpDHCsDB84omh4ouV4oavMl_iiJ7CsDDil78y4oq44qe7wrDii5V8wqTDlzIwMjQpCkJsaW5rIOKGkCDiiKco4oinKOKNnOKsmjBnZXQr4oqZOilOZXh0KcKwbWFw4oqZKG1hcC5bXSkKCi8r4o2lQmxpbms1MCDin5wvK-KNpUJsaW5rMjUgbWFw4oqV4oqD4oqi4qe74oq44oqbCg== "Uiua solution for 2024/11")|[**12**](https://adventofcode.com/2024/day/12) [<img height=12 src=".assets/rs.svg">](Rust/2024/12.rs "Rust solution for 2024/12") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriipziiJjiirjiiaBAXG4KCuKKnOKWoSsx4oqD4o2c4pmt4oqbKOKHoeKWsykKCkEg4oaQIC8r4omhKC8rwqziiIo6K-KKguKfnMKv4ouvMV8ywqQp4p-cwqQKQiDihpAgKAogIOKXtOKZreKCguKKnistMcOXMuKLr-KHoTTin5zCpMOXMgogIC8r4omhKOKGpeKKgyjil78yLyt8w5cyL8OX4qeI4omgKeKIijorLTHDlzLijZzihpjigoLih4zii6_ih6E0wqQpCikKCuKIqSgvK8OXKeKKmSziiaHil4fiioNCIEEg4p-c4omh4peH4qe7Cg== "Uiua solution for 2024/12")|[**13**](https://adventofcode.com/2024/day/13) [<img height=12 src=".assets/rs.svg">](Rust/2024/13.rs "Rust solution for 2024/13") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgrihq_iiJ5fM18y4oqc4ouV4oq44oiKK0Aw4oehMTAKCivCpFsuMCAxMDAwMDAwMDAwMDAwMF0uCuKIqSgvK-KJoeKNoygvK8OXM18x4omhKMKvwrAw4oqDL-KXvy_Dt-KniCgvLcOX4oeMKSniip_in5zijZzihpnigoLih4x8MCkpCg== "Uiua solution for 2024/13")|[**14**](https://adventofcode.com/2024/day/14) [<img height=12 src=".assets/rs.svg">](Rust/2024/14.rs "Rust solution for 2024/14") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgriipzii5XiirjiiIriioJALStAMOKHoTEwCuKGmTLiioLiipkxMDFfMTAz4oqD4oaY4oaZwq_ijZwo4pe_NCnii4Uw4oq44qe7CuKGr-KInl8yXzI6CgpTaW0g4oaQIOKXvzorw5fiipkoOsKw4oqf4qS4wq8yfMKkKQoKQSDihpAgL8OX4oqV4qe7LuKKm-KWveKJoDAvw5fiirjijYnCsS0rMcOXMuKKmcKk4oq4U2ltMTAwCkIg4oaQIOKKouKKmj3iirgv4oan4oy1L-KEguKNieKNnOKMhSjDt-KKg-Knuy8rKSjCsOKImi3CpCku4qS4MVNpbeKHoS_Dl-KkmeKIqcKkCgriioNCIEEK "Uiua solution for 2024/14")|[**15**](https://adventofcode.com/2024/day/15) [<img height=12 src=".assets/rs.svg">](Rust/2024/15.rs "Rust solution for 2024/15") [<img height=12 src=".assets/ua.png">](https://uiua.org/pad?src=JnNjCgrCsCQiX1xuXG5fIgriipziiJjiirjiiaBAXG4K4oqP4oqX4oqZKCJ2Pl48IuKKguKfnMKv4ouvMV8yKSDilr3iirjiiIoiPD5ediI6CgpOZXh0IOKGkCAoCiAgOuKGr-KKmSgr4peh4ouF4oqZ4ouF4ouF4oiYKeKKuOKIiiJAT1tdIiDiiqHil6Hiipnii4Xii4Xii4XiiJgg4oqZ4oqZ4o2c4oqh4ouFMeKfnDoKICDiioLiqKwo4oqCKzBfMXziioItMF8xfOKXjCniipfiipkoIltdIjopCikKVGFyZ2V0cyDihpAg4oqa4ouF4oqZ4ouF4peM4o2iKOKorChOZXh0fOKXjCniiqHil6Hiipnii4XiiJjCsOKKgnziiaAw4qe7KSDCpOKKmSjiiLXii4UwLCk6Ck1vdmUg4oaQICgKICDCsDAv4oalPUAj4oqh4peh4ouF4oqZ4oiYIOKfnOKKuFRhcmdldHMKICDijZziiqHil4wrwqTiipko4p-c4o2c4oqh4omhKEAu4oiYKSDilr3iiaBALuKXoeKKoSkKKQpTb2x2ZSAg4oaQIC8r4pmtw5fCpDEwMF8x4oqa4oiKIk9bIiDil4ziiKfijaMo4oqDK01vdmV84peMKSDiipko4oqi4oqa4oq4PUBAKQpFeHBhbmQg4oaQIOKNnOKNieKZreKCguKorCgiLi4ifCIjIyJ8IkAuInwiW10iKeKItSjiipfiipkiLiNATyIpCgriiKlTb2x2ZSAsRXhwYW5kLAo= "Uiua solution for 2024/15")|
|[**16**](https://adventofcode.com/2024/day/16)|[**17**](https://adventofcode.com/2024/day/17)|[**18**](https://adventofcode.com/2024/day/18)|[**19**](https://adventofcode.com/2024/day/19)|[**20**](https://adventofcode.com/2024/day/20)|[**21**](https://adventofcode.com/2024/day/21)|[**22**](https://adventofcode.com/2024/day/22)|
|[**16**](https://adventofcode.com/2024/day/16) [<img height=12 src=".assets/rs.svg">](Rust/2024/16.rs "Rust solution for 2024/16")|[**17**](https://adventofcode.com/2024/day/17)|[**18**](https://adventofcode.com/2024/day/18)|[**19**](https://adventofcode.com/2024/day/19)|[**20**](https://adventofcode.com/2024/day/20)|[**21**](https://adventofcode.com/2024/day/21)|[**22**](https://adventofcode.com/2024/day/22)|
|[**23**](https://adventofcode.com/2024/day/23)|[**24**](https://adventofcode.com/2024/day/24)|[**25**](https://adventofcode.com/2024/day/25)|26|27|28|29|
|30|31||||||

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Rust/2024/16.rs Normal file
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@ -0,0 +1,143 @@
#![feature(test)]
use std::{cmp::Reverse, collections::BinaryHeap};
use aoc::grid::Direction;
use rustc_hash::{FxHashMap, FxHashSet};
struct Input {
start: (usize, usize),
end: (usize, usize),
grid: Vec<Vec<bool>>,
}
fn setup(input: &str) -> Input {
let mut start = None;
let mut end = None;
let grid = input
.trim()
.lines()
.enumerate()
.map(|(y, l)| {
l.bytes()
.enumerate()
.map(|(x, b)| match b {
b'.' => true,
b'#' => false,
b'S' => {
start = Some((x, y));
true
}
b'E' => {
end = Some((x, y));
true
}
_ => panic!(),
})
.collect()
})
.collect();
Input {
start: start.unwrap(),
end: end.unwrap(),
grid,
}
}
fn part1(input: &Input) -> usize {
let mut pq = BinaryHeap::from([Reverse((0, input.start, Direction::East))]);
let mut visited = FxHashSet::default();
while let Some(Reverse((d, p @ (x, y), dir))) = pq.pop() {
if !visited.insert((p, dir)) {
continue;
}
if p == input.end {
return d;
}
pq.push(Reverse((d + 1000, p, dir.rotate_left())));
pq.push(Reverse((d + 1000, p, dir.rotate_right())));
pq.extend(
dir.step(x, y, input.grid[0].len(), input.grid.len())
.filter(|&(qx, qy)| input.grid[qy][qx])
.map(|q| Reverse((d + 1, q, dir))),
);
}
panic!()
}
fn part2(input: &Input) -> usize {
let mut pq = BinaryHeap::from([Reverse((0usize, input.start, Direction::East))]);
let mut costs = FxHashMap::default();
while let Some(Reverse((d, p @ (x, y), dir))) = pq.pop() {
if costs.contains_key(&(p, dir)) {
continue;
}
costs.insert((p, dir), d);
if p == input.end {
continue;
}
pq.push(Reverse((d + 1000, p, dir.rotate_left())));
pq.push(Reverse((d + 1000, p, dir.rotate_right())));
pq.extend(
dir.step(x, y, input.grid[0].len(), input.grid.len())
.filter(|&(qx, qy)| input.grid[qy][qx])
.map(|q| Reverse((d + 1, q, dir))),
);
}
let total_cost = Direction::iter()
.flat_map(|d| costs.get(&(input.end, d)))
.copied()
.min()
.unwrap();
let mut stack = Direction::iter()
.filter(|&dir| costs.get(&(input.end, dir)) == Some(&total_cost))
.map(|dir| (input.end, dir))
.collect::<Vec<_>>();
let mut visited = FxHashSet::default();
let mut tiles = FxHashSet::default();
while let Some((p @ (x, y), dir)) = stack.pop() {
tiles.insert(p);
if !visited.insert((p, dir)) {
continue;
}
if p == input.start {
continue;
}
let d = costs[&(p, dir)];
stack.extend(
[
(
1,
dir.invert()
.step(x, y, input.grid[0].len(), input.grid.len())
.filter(|&(qx, qy)| input.grid[qy][qx]),
dir,
),
(1000, Some(p), dir.rotate_left()),
(1000, Some(p), dir.rotate_right()),
]
.into_iter()
.flat_map(|(c, p, dir)| {
let p = p?;
costs
.get(&(p, dir))
.is_some_and(|&pc| pc + c == d)
.then_some((p, dir))
}),
);
}
tiles.len()
}
aoc::main!(2024, 16, ex: 1, 2);

2
Rust/2024/main.rs
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@ -14,7 +14,7 @@ aoc::year! {
"13.rs",
"14.rs",
"15.rs",
// "16.rs",
"16.rs",
// "17.rs",
// "18.rs",
// "19.rs",

3
Rust/Cargo.toml
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@ -405,3 +405,6 @@ path = "2024/14.rs"
[[bin]]
name = "2024_15"
path = "2024/15.rs"
[[bin]]
name = "2024_16"
path = "2024/16.rs"

15
examples/2024/16/1 Normal file
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@ -0,0 +1,15 @@
###############
#.......#....E#
#.#.###.#.###.#
#.....#.#...#.#
#.###.#####.#.#
#.#.#.......#.#
#.#.#####.###.#
#...........#.#
###.#.#####.#.#
#...#.....#.#.#
#.#.#.###.#.#.#
#.....#...#.#.#
#.###.#.#.#.#.#
#S..#.....#...#
###############

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@ -0,0 +1 @@
7036

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@ -0,0 +1 @@
45

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@ -0,0 +1,17 @@
#################
#...#...#...#..E#
#.#.#.#.#.#.#.#.#
#.#.#.#...#...#.#
#.#.#.#.###.#.#.#
#...#.#.#.....#.#
#.#.#.#.#.#####.#
#.#...#.#.#.....#
#.#.#####.#.###.#
#.#.#.......#...#
#.#.###.#####.###
#.#.#...#.....#.#
#.#.#.#####.###.#
#.#.#.........#.#
#.#.#.#########.#
#S#.............#
#################

1
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11048

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@ -0,0 +1 @@
64