Day 18 2024 solved.
Dieser Commit ist enthalten in:
Ursprung
62a671bc5a
Commit
16ae19ffa8
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@ -7,6 +7,7 @@ name = "advent-of-code"
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version = "0.1.0"
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dependencies = [
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"advent-of-code-macros",
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"console",
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"log",
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"num",
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"regex",
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@ -37,6 +38,31 @@ version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
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[[package]]
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name = "console"
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version = "0.15.10"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ea3c6ecd8059b57859df5c69830340ed3c41d30e3da0c1cbed90a96ac853041b"
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dependencies = [
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"encode_unicode",
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"libc",
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"once_cell",
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"unicode-width",
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"windows-sys",
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]
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[[package]]
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name = "encode_unicode"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "34aa73646ffb006b8f5147f3dc182bd4bcb190227ce861fc4a4844bf8e3cb2c0"
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[[package]]
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name = "libc"
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version = "0.2.168"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5aaeb2981e0606ca11d79718f8bb01164f1d6ed75080182d3abf017e6d244b6d"
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[[package]]
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name = "log"
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version = "0.4.22"
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@ -122,6 +148,12 @@ dependencies = [
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"autocfg",
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]
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[[package]]
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name = "once_cell"
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version = "1.20.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
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[[package]]
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name = "proc-macro2"
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version = "1.0.92"
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@ -191,3 +223,82 @@ name = "unicode-ident"
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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 = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
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[[package]]
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name = "unicode-width"
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version = "0.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1fc81956842c57dac11422a97c3b8195a1ff727f06e85c84ed2e8aa277c9a0fd"
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[[package]]
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name = "windows-sys"
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version = "0.59.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
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dependencies = [
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"windows-targets",
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]
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[[package]]
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name = "windows-targets"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
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dependencies = [
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"windows_aarch64_gnullvm",
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"windows_aarch64_msvc",
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"windows_i686_gnu",
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"windows_i686_gnullvm",
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"windows_i686_msvc",
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"windows_x86_64_gnu",
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"windows_x86_64_gnullvm",
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"windows_x86_64_msvc",
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]
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[[package]]
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name = "windows_aarch64_gnullvm"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
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[[package]]
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name = "windows_aarch64_msvc"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
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[[package]]
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name = "windows_i686_gnu"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
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[[package]]
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name = "windows_i686_gnullvm"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
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[[package]]
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name = "windows_i686_msvc"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
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[[package]]
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name = "windows_x86_64_gnu"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
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[[package]]
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name = "windows_x86_64_gnullvm"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
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[[package]]
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name = "windows_x86_64_msvc"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
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@ -312,6 +312,7 @@ name = "advent_of_code"
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num="0.4.*"
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log="0.4.*"
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thousands="0.2.*"
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console="0.15.*"
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[dependencies.advent-of-code-macros]
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path = "macros"
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2
Makefile
2
Makefile
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@ -7,7 +7,7 @@ fmt:
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%: fmt
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@$(CARGO) build $(CARGO_OPTS) --bin $@
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@timeout --preserve-status -v 60 ./target/$(TARGET_DIR)/$@
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@timeout --foreground --preserve-status -v 60 ./target/$(TARGET_DIR)/$@
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Makefile:
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exit
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@ -0,0 +1,161 @@
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use std::{cmp::Ordering, collections::HashMap};
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use advent_of_code::{
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strings::{convert_to_array, parsenumber},
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Kartesian, Map, ToCoords, KD,
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};
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#[allow(unused_imports)]
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use advent_of_code_macros::{include_data, include_example};
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use log::*;
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include_data!(DATA 2024 18);
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const HEIGHT: usize = 71;
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const WIDTH: usize = HEIGHT;
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const BLOCKS: usize = 1024;
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fn get_coords(line: &str) -> Kartesian<usize> {
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let (y, x) = line.split_once(',').unwrap();
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Kartesian::<u32>::new(parsenumber(x), parsenumber(y)).to_coords()
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}
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#[inline]
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fn i_to_c(i: usize) -> char {
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match i % 10 {
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1 => '1',
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2 => '2',
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3 => '3',
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4 => '4',
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5 => '5',
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6 => '6',
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7 => '7',
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8 => '8',
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9 => '9',
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0 => '0',
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_ => unreachable!(),
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}
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}
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#[derive(Debug, Default, Clone, Ord, Copy)]
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struct Node {
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coords: Kartesian<usize>,
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score: usize,
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parent: Kartesian<usize>,
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}
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impl PartialEq for Node {
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fn eq(&self, other: &Self) -> bool {
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self.coords.eq(&other.coords)
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}
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}
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impl Eq for Node {}
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impl PartialOrd for Node {
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fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
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match self.score.partial_cmp(&other.score) {
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Some(Ordering::Equal) => self.coords.partial_cmp(&other.coords),
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x => x,
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}
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}
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}
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fn astar_search<const WALL: char>(mut map: Map<char>, start_pos: Kartesian<usize>, dest_pos: Kartesian<usize>) -> Option<usize> {
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let maximum = map.size();
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let mut nodelist = HashMap::with_capacity(maximum.x * maximum.y);
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let start = Node {
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coords: start_pos,
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score: 0,
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parent: start_pos,
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};
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let mut destination = Node {
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coords: dest_pos,
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score: maximum.x * maximum.y,
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parent: dest_pos,
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};
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nodelist.insert(start_pos, start);
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let mut open = vec![start_pos];
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let (mut node, mut nodepos, mut coords);
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loop {
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nodepos = match open.pop() {
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None => {
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debug!("Out of possible nodes");
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break;
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},
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Some(x) => x,
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};
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node = *nodelist.get(&nodepos).unwrap();
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for dir in KD::iter(false, false, true) {
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coords = match nodepos.move_dir_max(dir.vector(), dir, maximum) {
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None => continue,
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Some(x) => {
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if map.get(x) == Some(WALL) {
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continue;
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}
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x
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},
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};
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let newnode = match nodelist.get_mut(&coords) {
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None => {
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let newnode = Node {
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coords,
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score: node.score + 1,
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parent: node.coords,
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};
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map.set(coords, i_to_c(node.score + 1));
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open.insert(0, newnode.coords);
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nodelist.insert(coords, newnode);
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nodelist.get_mut(&coords).unwrap()
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},
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Some(node) => node,
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};
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if newnode.score > node.score + 1 {
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debug!("Overwriting score {} > {}: {:?}", newnode.score, node.score + 1, newnode);
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newnode.parent = node.coords;
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newnode.score = node.score + 1;
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}
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if newnode.coords == destination.coords && newnode.score < destination.score {
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destination.parent = newnode.parent;
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destination.score = newnode.score
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}
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}
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open.sort();
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if open.len() > 300 {
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println!("{:#?}", open);
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break;
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}
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debug!("Open coords: {}\n{}", open.len(), map);
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}
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if destination.parent == dest_pos {
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None
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} else {
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Some(destination.score)
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}
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}
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fn main() {
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let blocks = convert_to_array::<_, _, '\n'>(DATA, get_coords);
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let mut corrupted = blocks.iter().cloned();
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let mut map = Map::<char>::empty(HEIGHT, WIDTH);
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let mut fallen = 0;
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map.replace_default('.');
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while let Some(coord) = corrupted.next() {
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fallen += 1;
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map.set(coord, '#');
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if fallen == BLOCKS {
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break;
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}
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}
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println!("Minimum Steps: {}", astar_search::<'#'>(map.clone(), map.size() - Kartesian::new(1, 1), Kartesian::default()).unwrap());
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while let Some(coord) = corrupted.next() {
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map.set(coord, '#');
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if astar_search::<'#'>(map.clone(), map.size() - Kartesian::new(1, 1), Kartesian::default()).is_none() {
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println!("First Block is: {},{}", coord.y, coord.x);
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break;
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}
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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}
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@ -0,0 +1,25 @@
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5,4
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4,2
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4,5
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3,0
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2,1
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6,3
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2,4
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1,5
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0,6
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3,3
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2,6
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5,1
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1,2
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5,5
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2,5
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6,5
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1,4
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0,4
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6,4
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1,1
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6,1
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1,0
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0,5
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1,6
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2,0
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