update day10
This commit is contained in:
parent
0645f39e51
commit
4e494e5596
33
Cargo.lock
generated
33
Cargo.lock
generated
@ -11,6 +11,8 @@ dependencies = [
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"array2d",
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"array2d",
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"itertools",
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"itertools",
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"rust-crypto",
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"rust-crypto",
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"strum",
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"strum_macros",
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]
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]
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[[package]]
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[[package]]
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@ -66,6 +68,12 @@ version = "0.3.55"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8f5f3913fa0bfe7ee1fd8248b6b9f42a5af4b9d65ec2dd2c3c26132b950ecfc2"
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checksum = "8f5f3913fa0bfe7ee1fd8248b6b9f42a5af4b9d65ec2dd2c3c26132b950ecfc2"
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[[package]]
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name = "heck"
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version = "0.4.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
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[[package]]
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[[package]]
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name = "itertools"
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name = "itertools"
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version = "0.12.0"
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version = "0.12.0"
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@ -171,6 +179,12 @@ version = "0.3.25"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fe834bc780604f4674073badbad26d7219cadfb4a2275802db12cbae17498401"
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checksum = "fe834bc780604f4674073badbad26d7219cadfb4a2275802db12cbae17498401"
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[[package]]
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name = "rustversion"
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version = "1.0.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7ffc183a10b4478d04cbbbfc96d0873219d962dd5accaff2ffbd4ceb7df837f4"
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[[package]]
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[[package]]
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name = "ryu"
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name = "ryu"
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version = "1.0.16"
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version = "1.0.16"
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@ -208,6 +222,25 @@ dependencies = [
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"serde",
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"serde",
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]
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]
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[[package]]
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name = "strum"
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version = "0.25.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "290d54ea6f91c969195bdbcd7442c8c2a2ba87da8bf60a7ee86a235d4bc1e125"
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[[package]]
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name = "strum_macros"
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version = "0.25.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "23dc1fa9ac9c169a78ba62f0b841814b7abae11bdd047b9c58f893439e309ea0"
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dependencies = [
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"heck",
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"proc-macro2",
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"quote",
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"rustversion",
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"syn 2.0.41",
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]
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[[package]]
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[[package]]
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name = "syn"
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name = "syn"
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version = "1.0.109"
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version = "1.0.109"
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@ -12,3 +12,5 @@ aoc-runner = "0.3.0"
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aoc-runner-derive = "0.3.0"
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aoc-runner-derive = "0.3.0"
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itertools = "0.12.0"
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itertools = "0.12.0"
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array2d = "0.3.0"
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array2d = "0.3.0"
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strum = "0.25.0"
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strum_macros = "0.25"
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77
old/day10/Cargo.lock
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77
old/day10/Cargo.lock
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@ -1,77 +0,0 @@
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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 = "day10"
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version = "0.1.0"
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dependencies = [
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"strum",
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"strum_macros",
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]
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[[package]]
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name = "heck"
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version = "0.4.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
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[[package]]
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name = "proc-macro2"
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version = "1.0.70"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "39278fbbf5fb4f646ce651690877f89d1c5811a3d4acb27700c1cb3cdb78fd3b"
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dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "quote"
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version = "1.0.33"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "rustversion"
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version = "1.0.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7ffc183a10b4478d04cbbbfc96d0873219d962dd5accaff2ffbd4ceb7df837f4"
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[[package]]
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name = "strum"
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version = "0.25.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "290d54ea6f91c969195bdbcd7442c8c2a2ba87da8bf60a7ee86a235d4bc1e125"
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[[package]]
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name = "strum_macros"
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version = "0.25.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "23dc1fa9ac9c169a78ba62f0b841814b7abae11bdd047b9c58f893439e309ea0"
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dependencies = [
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"heck",
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"proc-macro2",
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"quote",
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"rustversion",
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"syn",
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]
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[[package]]
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name = "syn"
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version = "2.0.41"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "44c8b28c477cc3bf0e7966561e3460130e1255f7a1cf71931075f1c5e7a7e269"
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dependencies = [
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"proc-macro2",
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"quote",
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"unicode-ident",
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]
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[[package]]
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name = "unicode-ident"
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version = "1.0.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
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@ -1,10 +0,0 @@
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[package]
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name = "day10"
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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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strum = "0.25.0"
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strum_macros = "0.25"
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@ -1,234 +0,0 @@
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use std::fs;
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use strum::IntoEnumIterator;
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use strum_macros::EnumIter;
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fn main() {
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let input = fs::read_to_string("input.txt").unwrap();
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let input = parse_input(&input);
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let start = find_start(&input);
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let mut start_dirs: Vec<Direction> = vec![];
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for dir in Direction::iter().filter(|x| x != &Direction::Start) {
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let (x, y) = ((start.0 as i32 + dir.to_ind().1), (start.1 as i32 + dir.to_ind().0));
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if x < 0 || y < 0 {
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continue;
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}
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let neibhor = &input[x as usize][y as usize];
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if neibhor.contains(&dir.reverse()) {
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start_dirs.push(dir);
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}
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}
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let mut finished = false;
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let mut pre = start_dirs[0].reverse();
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let mut pos = ((start.0 as i32 + start_dirs[0].to_ind().1) as usize, (start.1 as i32 + start_dirs[0].to_ind().0) as usize);
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let mut the_loop = vec![start, pos];
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let mut area = 0;
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while !finished {
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let first_next = &input[pos.0][pos.1].iter().filter(|x| x != &&pre).next().unwrap();
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pos = ((pos.0 as i32 + first_next.to_ind().1) as usize, (pos.1 as i32 + first_next.to_ind().0) as usize);
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pre = first_next.reverse();
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finished = pos == start;
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the_loop.push(pos);
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}
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for win in the_loop.windows(2) {
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area += (win[0].1 * win[1].0) as i64;
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area -= (win[0].0 * win[1].1) as i64;
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}
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let area = i64::abs(area) / 2;
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let spaces = area - (the_loop.len() as i64 / 2) + 1;
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println!("{}", spaces)
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}
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fn parse_input(input: &String) -> Vec<Vec<Vec<Direction>>> {
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let input: Vec<_> = input.split('\n')
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.map(|line| {
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line.chars()
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.map(|char| {
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match char {
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'|' => vec![Direction::North, Direction::South],
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'-' => vec![Direction::East, Direction::West],
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'L' => vec![Direction::North, Direction::East],
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'J' => vec![Direction::North, Direction::West],
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'7' => vec![Direction::South, Direction::West],
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'F' => vec![Direction::South, Direction::East],
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'.' => vec![],
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'S' => vec![Direction::Start],
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_ => panic!("Invalid pipe char")
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}
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}).collect::<Vec<_>>()
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}).collect();
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return input;
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}
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fn find_start(input: &Vec<Vec<Vec<Direction>>>) -> (usize, usize) {
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let mut start_point: Option<(usize, usize)> = None;
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for i in 0..input.len() {
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for j in 0..input[0].len() {
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if input[i][j].contains(&Direction::Start) {
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start_point = Some((i,j));
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}
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}
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}
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match start_point {
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Some(x) => x,
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None => panic!("No start point found! AHHHHH")
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}
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}
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#[derive(Debug, PartialEq, EnumIter)]
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enum Direction {
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North,
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South,
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East,
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West,
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Start
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}
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impl Direction {
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pub fn to_ind(&self) -> (i32, i32) {
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match self {
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Direction::North => (0,-1),
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Direction::South => (0,1),
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Direction::East => (1,0),
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Direction::West => (-1,0),
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Direction::Start => panic!("Start should never be converted to an index. AHH"),
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}
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}
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pub fn reverse(&self) -> Direction {
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match self {
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Direction::North => Direction::South,
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Direction::South => Direction::North,
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Direction::East => Direction::West,
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Direction::West => Direction::East,
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Direction::Start => panic!("Start should never be reversed. AHH"),
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}
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}
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}
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// use std::fs;
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// use strum::IntoEnumIterator;
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// use strum_macros::EnumIter;
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// fn main() {
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// let input = fs::read_to_string("input.txt").unwrap();
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// let input = parse_input(&input);
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// let start = find_start(&input);
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// let mut start_dirs: Vec<Direction> = vec![];
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// for dir in Direction::iter().filter(|x| x != &Direction::Start) {
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// let (x, y) = ((start.0 as i32 + dir.to_ind().1), (start.1 as i32 + dir.to_ind().0));
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// if x < 0 || y < 0 {
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// continue;
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// }
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// let neibhor = &input[x as usize][y as usize];
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// if neibhor.contains(&dir.reverse()) {
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// start_dirs.push(dir);
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// }
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// }
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// let mut finished = false;
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// let mut count = 1;
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// let mut first_pre = start_dirs[0].reverse();
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// let mut second_pre = start_dirs[1].reverse();
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// let mut first_pos = ((start.0 as i32 + start_dirs[0].to_ind().1) as usize, (start.1 as i32 + start_dirs[0].to_ind().0) as usize);
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// let mut second_pos = ((start.0 as i32 + start_dirs[1].to_ind().1) as usize, (start.1 as i32 + start_dirs[1].to_ind().0) as usize);
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// while !finished {
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// let first_next = &input[first_pos.0][first_pos.1].iter().filter(|x| x != &&first_pre).next().unwrap();
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// first_pos = ((first_pos.0 as i32 + first_next.to_ind().1) as usize, (first_pos.1 as i32 + first_next.to_ind().0) as usize);
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// first_pre = first_next.reverse();
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// let second_next = &input[second_pos.0][second_pos.1].iter().filter(|x| x != &&second_pre).next().unwrap();
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// second_pos = ((second_pos.0 as i32 + second_next.to_ind().1) as usize, (second_pos.1 as i32 + second_next.to_ind().0) as usize);
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// second_pre = second_next.reverse();
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// count += 1;
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// finished = first_pos == second_pos;
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// }
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// println!("{:?}", count)
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// }
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// fn parse_input(input: &String) -> Vec<Vec<Vec<Direction>>> {
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// let input: Vec<_> = input.split('\n')
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// .map(|line| {
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// line.chars()
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// .map(|char| {
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// match char {
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// '|' => vec![Direction::North, Direction::South],
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// '-' => vec![Direction::East, Direction::West],
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// 'L' => vec![Direction::North, Direction::East],
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// 'J' => vec![Direction::North, Direction::West],
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// '7' => vec![Direction::South, Direction::West],
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// 'F' => vec![Direction::South, Direction::East],
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// '.' => vec![],
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// 'S' => vec![Direction::Start],
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// _ => panic!("Invalid pipe char")
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// }
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// }).collect::<Vec<_>>()
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// }).collect();
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// return input;
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// }
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// fn find_start(input: &Vec<Vec<Vec<Direction>>>) -> (usize, usize) {
|
|
||||||
// let mut start_point: Option<(usize, usize)> = None;
|
|
||||||
// for i in 0..input.len() {
|
|
||||||
// for j in 0..input[0].len() {
|
|
||||||
// if input[i][j].contains(&Direction::Start) {
|
|
||||||
// start_point = Some((i,j));
|
|
||||||
// }
|
|
||||||
// }
|
|
||||||
// }
|
|
||||||
|
|
||||||
// match start_point {
|
|
||||||
// Some(x) => x,
|
|
||||||
// None => panic!("No start point found! AHHHHH")
|
|
||||||
// }
|
|
||||||
// }
|
|
||||||
|
|
||||||
// #[derive(Debug, PartialEq, EnumIter)]
|
|
||||||
// enum Direction {
|
|
||||||
// North,
|
|
||||||
// South,
|
|
||||||
// East,
|
|
||||||
// West,
|
|
||||||
// Start
|
|
||||||
// }
|
|
||||||
|
|
||||||
// impl Direction {
|
|
||||||
// pub fn to_ind(&self) -> (i32, i32) {
|
|
||||||
// match self {
|
|
||||||
// Direction::North => (0,-1),
|
|
||||||
// Direction::South => (0,1),
|
|
||||||
// Direction::East => (1,0),
|
|
||||||
// Direction::West => (-1,0),
|
|
||||||
// Direction::Start => panic!("Start should never be converted to an index. AHH"),
|
|
||||||
// }
|
|
||||||
// }
|
|
||||||
|
|
||||||
// pub fn reverse(&self) -> Direction {
|
|
||||||
// match self {
|
|
||||||
// Direction::North => Direction::South,
|
|
||||||
// Direction::South => Direction::North,
|
|
||||||
// Direction::East => Direction::West,
|
|
||||||
// Direction::West => Direction::East,
|
|
||||||
// Direction::Start => panic!("Start should never be reversed. AHH"),
|
|
||||||
// }
|
|
||||||
// }
|
|
||||||
// }
|
|
||||||
190
src/day10.rs
Normal file
190
src/day10.rs
Normal file
@ -0,0 +1,190 @@
|
|||||||
|
use aoc_runner_derive::{aoc, aoc_generator};
|
||||||
|
use strum::IntoEnumIterator;
|
||||||
|
use strum_macros::EnumIter;
|
||||||
|
|
||||||
|
#[aoc_generator(day10)]
|
||||||
|
fn parse(input: &str) -> ((usize, usize), Vec<Vec<Vec<Direction>>>) {
|
||||||
|
let input: Vec<_> = input.split('\n')
|
||||||
|
.map(|line| {
|
||||||
|
line.chars()
|
||||||
|
.map(|char| {
|
||||||
|
match char {
|
||||||
|
'|' => vec![Direction::North, Direction::South],
|
||||||
|
'-' => vec![Direction::East, Direction::West],
|
||||||
|
'L' => vec![Direction::North, Direction::East],
|
||||||
|
'J' => vec![Direction::North, Direction::West],
|
||||||
|
'7' => vec![Direction::South, Direction::West],
|
||||||
|
'F' => vec![Direction::South, Direction::East],
|
||||||
|
'.' => vec![],
|
||||||
|
'S' => vec![Direction::Start],
|
||||||
|
_ => panic!("Invalid pipe char")
|
||||||
|
}
|
||||||
|
}).collect::<Vec<_>>()
|
||||||
|
}).collect();
|
||||||
|
|
||||||
|
let start = find_start(&input);
|
||||||
|
|
||||||
|
(start, input)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn find_start(input: &Vec<Vec<Vec<Direction>>>) -> (usize, usize) {
|
||||||
|
let mut start_point: Option<(usize, usize)> = None;
|
||||||
|
for i in 0..input.len() {
|
||||||
|
for j in 0..input[0].len() {
|
||||||
|
if input[i][j].contains(&Direction::Start) {
|
||||||
|
start_point = Some((i,j));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
match start_point {
|
||||||
|
Some(x) => x,
|
||||||
|
None => panic!("No start point found! AHHHHH")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[aoc(day10, part1)]
|
||||||
|
fn part1((start, input): &((usize, usize), Vec<Vec<Vec<Direction>>>)) -> i32 {
|
||||||
|
let mut start_dirs: Vec<Direction> = vec![];
|
||||||
|
for dir in Direction::iter().filter(|x| x != &Direction::Start) {
|
||||||
|
let (x, y) = ((start.0 as i32 + dir.to_ind().1), (start.1 as i32 + dir.to_ind().0));
|
||||||
|
if x < 0 || y < 0 {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
let neibhor = &input[x as usize][y as usize];
|
||||||
|
if neibhor.contains(&dir.reverse()) {
|
||||||
|
start_dirs.push(dir);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut finished = false;
|
||||||
|
let mut count = 1;
|
||||||
|
|
||||||
|
let mut first_pre = start_dirs[0].reverse();
|
||||||
|
let mut second_pre = start_dirs[1].reverse();
|
||||||
|
let mut first_pos = ((start.0 as i32 + start_dirs[0].to_ind().1) as usize, (start.1 as i32 + start_dirs[0].to_ind().0) as usize);
|
||||||
|
let mut second_pos = ((start.0 as i32 + start_dirs[1].to_ind().1) as usize, (start.1 as i32 + start_dirs[1].to_ind().0) as usize);
|
||||||
|
|
||||||
|
while !finished {
|
||||||
|
let first_next = &input[first_pos.0][first_pos.1].iter().filter(|x| x != &&first_pre).next().unwrap();
|
||||||
|
first_pos = ((first_pos.0 as i32 + first_next.to_ind().1) as usize, (first_pos.1 as i32 + first_next.to_ind().0) as usize);
|
||||||
|
first_pre = first_next.reverse();
|
||||||
|
|
||||||
|
let second_next = &input[second_pos.0][second_pos.1].iter().filter(|x| x != &&second_pre).next().unwrap();
|
||||||
|
second_pos = ((second_pos.0 as i32 + second_next.to_ind().1) as usize, (second_pos.1 as i32 + second_next.to_ind().0) as usize);
|
||||||
|
second_pre = second_next.reverse();
|
||||||
|
|
||||||
|
count += 1;
|
||||||
|
finished = first_pos == second_pos;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
count
|
||||||
|
}
|
||||||
|
|
||||||
|
#[aoc(day10, part2)]
|
||||||
|
fn part2((start, input): &((usize, usize), Vec<Vec<Vec<Direction>>>)) -> i64 {
|
||||||
|
let mut start_dirs: Vec<Direction> = vec![];
|
||||||
|
for dir in Direction::iter().filter(|x| x != &Direction::Start) {
|
||||||
|
let (x, y) = ((start.0 as i32 + dir.to_ind().1), (start.1 as i32 + dir.to_ind().0));
|
||||||
|
if x < 0 || y < 0 {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
let neibhor = &input[x as usize][y as usize];
|
||||||
|
if neibhor.contains(&dir.reverse()) {
|
||||||
|
start_dirs.push(dir);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut finished = false;
|
||||||
|
|
||||||
|
let mut pre = start_dirs[0].reverse();
|
||||||
|
let mut pos = ((start.0 as i32 + start_dirs[0].to_ind().1) as usize, (start.1 as i32 + start_dirs[0].to_ind().0) as usize);
|
||||||
|
|
||||||
|
let mut the_loop = vec![*start, pos];
|
||||||
|
let mut area = 0;
|
||||||
|
|
||||||
|
while !finished {
|
||||||
|
let first_next = &input[pos.0][pos.1].iter().filter(|x| x != &&pre).next().unwrap();
|
||||||
|
pos = ((pos.0 as i32 + first_next.to_ind().1) as usize, (pos.1 as i32 + first_next.to_ind().0) as usize);
|
||||||
|
pre = first_next.reverse();
|
||||||
|
|
||||||
|
finished = pos == *start;
|
||||||
|
the_loop.push(pos);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
for win in the_loop.windows(2) {
|
||||||
|
area += (win[0].1 * win[1].0) as i64;
|
||||||
|
area -= (win[0].0 * win[1].1) as i64;
|
||||||
|
}
|
||||||
|
let area = i64::abs(area) / 2;
|
||||||
|
|
||||||
|
let spaces = area - (the_loop.len() as i64 / 2) + 1;
|
||||||
|
|
||||||
|
spaces
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug, PartialEq, EnumIter)]
|
||||||
|
enum Direction {
|
||||||
|
North,
|
||||||
|
South,
|
||||||
|
East,
|
||||||
|
West,
|
||||||
|
Start
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Direction {
|
||||||
|
pub fn to_ind(&self) -> (i32, i32) {
|
||||||
|
match self {
|
||||||
|
Direction::North => (0,-1),
|
||||||
|
Direction::South => (0,1),
|
||||||
|
Direction::East => (1,0),
|
||||||
|
Direction::West => (-1,0),
|
||||||
|
Direction::Start => panic!("Start should never be converted to an index. AHH"),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn reverse(&self) -> Direction {
|
||||||
|
match self {
|
||||||
|
Direction::North => Direction::South,
|
||||||
|
Direction::South => Direction::North,
|
||||||
|
Direction::East => Direction::West,
|
||||||
|
Direction::West => Direction::East,
|
||||||
|
Direction::Start => panic!("Start should never be reversed. AHH"),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#[cfg(test)]
|
||||||
|
mod tests {
|
||||||
|
use super::*;
|
||||||
|
|
||||||
|
const EX: &str = r"7-F7-
|
||||||
|
.FJ|7
|
||||||
|
SJLL7
|
||||||
|
|F--J
|
||||||
|
LJ.LJ";
|
||||||
|
|
||||||
|
const EX_2: &str = r".F----7F7F7F7F-7....
|
||||||
|
.|F--7||||||||FJ....
|
||||||
|
.||.FJ||||||||L7....
|
||||||
|
FJL7L7LJLJ||LJ.L-7..
|
||||||
|
L--J.L7...LJS7F-7L7.
|
||||||
|
....F-J..F7FJ|L7L7L7
|
||||||
|
....L7.F7||L7|.L7L7|
|
||||||
|
.....|FJLJ|FJ|F7|.LJ
|
||||||
|
....FJL-7.||.||||...
|
||||||
|
....L---J.LJ.LJLJ...";
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn part1_example() {
|
||||||
|
assert_eq!(part1(&parse(EX)), 8);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn part2_example() {
|
||||||
|
assert_eq!(part2(&parse(EX_2)), 8);
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -1,3 +1,4 @@
|
|||||||
|
mod day10;
|
||||||
mod day9;
|
mod day9;
|
||||||
mod day8;
|
mod day8;
|
||||||
mod day7;
|
mod day7;
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user