├── .gitignore
├── Cargo.toml
├── AdventOfCode2025.code-workspace
├── src
    └── bin
    │   └── 1.rs
└── Cargo.lock


/.gitignore:
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1 | /target
2 | 


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/Cargo.toml:
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1 | [package]
2 | name = "aoc_2025"
3 | version = "0.1.0"
4 | edition = "2021"
5 | 
6 | [dependencies]
7 | aoc_2024 = { path = "../AdventOfCode2024", version = "0.1.0" }
8 | 


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/AdventOfCode2025.code-workspace:
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 1 | {
 2 | 	"folders": [
 3 | 		{
 4 | 			"path": "."
 5 | 		},
 6 | 		{
 7 | 			"path": "../AdventOfCode2024"
 8 | 		}
 9 | 	],
10 | 	"settings": {}
11 | }


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/src/bin/1.rs:
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 1 | use aoc_2024::*;
 2 | use std::error;
 3 | 
 4 | fn p1<I, S>(input: I) -> usize
 5 | where
 6 |     I: IntoIterator<Item = S>,
 7 |     S: AsRef<str>,
 8 | {
 9 |     input
10 |         .into_iter()
11 |         .scan(50, |acc, line| {
12 |             let line = line.as_ref();
13 |             let mut d = line[1..].parse::<i32>().unwrap();
14 |             if line.starts_with('L') {
15 |                 d = 100 - d;
16 |             }
17 |             *acc = (*acc + d) % 100;
18 |             Some(*acc)
19 |         })
20 |         .filter(|v| *v == 0)
21 |         .count()
22 | }
23 | 
24 | fn p2(input: &Vec<String>) -> usize {
25 |     let iter = input.iter().flat_map(|line| {
26 |         let line = line.as_str();
27 |         let d = line[1..].parse::<usize>().unwrap();
28 |         let dir = if line.starts_with('L') { "L1" } else { "R1" };
29 |         std::iter::repeat(dir).take(d).map(|s| s.to_string())
30 |     });
31 |     p1(iter)
32 | }
33 | 
34 | fn main() -> Result<(), Box<dyn error::Error>> {
35 |     let input = read_in()?;
36 |     write_out(p1(&input));
37 |     write_out(p2(&input));
38 |     Ok(())
39 | }
40 | 


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/Cargo.lock:
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 1 | # This file is automatically @generated by Cargo.
 2 | # It is not intended for manual editing.
 3 | version = 4
 4 | 
 5 | [[package]]
 6 | name = "aho-corasick"
 7 | version = "1.1.4"
 8 | source = "registry+https://github.com/rust-lang/crates.io-index"
 9 | checksum = "ddd31a130427c27518df266943a5308ed92d4b226cc639f5a8f1002816174301"
10 | dependencies = [
11 |  "memchr",
12 | ]
13 | 
14 | [[package]]
15 | name = "aoc_2024"
16 | version = "0.1.0"
17 | dependencies = [
18 |  "itertools",
19 |  "regex",
20 | ]
21 | 
22 | [[package]]
23 | name = "aoc_2025"
24 | version = "0.1.0"
25 | dependencies = [
26 |  "aoc_2024",
27 | ]
28 | 
29 | [[package]]
30 | name = "either"
31 | version = "1.15.0"
32 | source = "registry+https://github.com/rust-lang/crates.io-index"
33 | checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
34 | 
35 | [[package]]
36 | name = "itertools"
37 | version = "0.13.0"
38 | source = "registry+https://github.com/rust-lang/crates.io-index"
39 | checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
40 | dependencies = [
41 |  "either",
42 | ]
43 | 
44 | [[package]]
45 | name = "memchr"
46 | version = "2.7.6"
47 | source = "registry+https://github.com/rust-lang/crates.io-index"
48 | checksum = "f52b00d39961fc5b2736ea853c9cc86238e165017a493d1d5c8eac6bdc4cc273"
49 | 
50 | [[package]]
51 | name = "regex"
52 | version = "1.12.2"
53 | source = "registry+https://github.com/rust-lang/crates.io-index"
54 | checksum = "843bc0191f75f3e22651ae5f1e72939ab2f72a4bc30fa80a066bd66edefc24d4"
55 | dependencies = [
56 |  "aho-corasick",
57 |  "memchr",
58 |  "regex-automata",
59 |  "regex-syntax",
60 | ]
61 | 
62 | [[package]]
63 | name = "regex-automata"
64 | version = "0.4.13"
65 | source = "registry+https://github.com/rust-lang/crates.io-index"
66 | checksum = "5276caf25ac86c8d810222b3dbb938e512c55c6831a10f3e6ed1c93b84041f1c"
67 | dependencies = [
68 |  "aho-corasick",
69 |  "memchr",
70 |  "regex-syntax",
71 | ]
72 | 
73 | [[package]]
74 | name = "regex-syntax"
75 | version = "0.8.8"
76 | source = "registry+https://github.com/rust-lang/crates.io-index"
77 | checksum = "7a2d987857b319362043e95f5353c0535c1f58eec5336fdfcf626430af7def58"
78 | 


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