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No commits in common. "20981716c3809e794e735072a190e661dcd9560e" and "8a48ba05b0b00db107a8ccc025f95e80caa353cd" have entirely different histories.
20981716c3
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8a48ba05b0
6 changed files with 0 additions and 187 deletions
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504
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abaaaaaaaaccccccccccccccccccaaaaaccccaaaaaaccccccccccccccccccccccaaaaaaaaaacccccccccccccccccccccccccccccccaaaaaccccccccccccccccccccccccccccccccccccccccccaaaaaa
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abaaaaaaaacccccccccccccccccccaaaaaccccaaaacccccaaaacccccccccccccccaaaaaaaaaacccccccccccccccccccccccccccccaaaaaaccccccccccccccccccccccccccccccccccccccccccccaaaa
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abccaaaaaaccccccccccccccccccaaaaaaccccaaaaccccaaaaaccccccccccaaaaaaaaaaaaaaacccccccccccccccccccccccccccccaaaacccccccccccccccccccccccccccccaaaccccccccccccccaaaa
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abcaaaaaaaccccccccccccccccccaaaaccccccaccaccccaaaaaacccccccccaaaaaaaaaaaaaaacccccccccccccccccccccacccccccccaacccccccccccccccccccccccccccccaaaccccccccccccccaaaa
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abccaacccaccccccccccccccccccccaaacccccccccccccaaaaaaccccccccccaaaaaaaaacaaacccccccccccccccccccaaaacccccccccccccccccccccccccaacccccccaaccccaaacccccccccccccaaaaa
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abcaaaaaacccccccccccccccccccccccccccccccccccccaaaaaccccccccccaaaaaaaaaaccccaacaaccccccccccccccaaaaaacccccccccccccccccccccccaacccccccaaaacaaaaccccccccccccccaccc
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abccaaaaacccccccccccccccccccccccccccccccccccaaccaaacccccccccaaaaaaaaaaaacccaaaaccccccccccccccccaaaaacccccccccccccccaacaaaaaaacccccccaaaaaaaaacccccccccccccccccc
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abccaaaaaacccccccccccccccccccccccccccccaaacaaaccccccccccccccaaaaaaaaaaacccaaaaacccccccccccccccaaaaacccccccccccccaaaaaccaaaaaaaaccccccaaaaaalllllllcccaacccccccc
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abccaaaaaaccccccaaaaacccccccccaaaccccccaaaaaaaccccccccccccccaaacaaacaaacccaaaaaaccccccccccccccaccaaccccccccccccccaaaaacaaaaaaaaajkkkkkkkkkklllllllccccaaaaacccc
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abccaaaaacccccccaaaaacccccccccaaaaccccccaaaaaaccccccccaacaacccccaaacccccccacaaaaccccccccaaaccccccccccccccccccccccaaaaaccaaaaaaajjkkkkkkkkkkllssllllcccaaaaacccc
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abcccaaaaccccccaaaaaacccccccccaaaaccccccaaaaaaaaccccccaaaaacccccaaccccccccccaacccccccccaaaacccccccccccccccaaccccaaaaaccaaaaaacjjjjkkkkkkkkssssssslllccaaaaccccc
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abcccccccccccccaaaaaacccccccccaaaccccccaaaaaaaaacaaccccaaaaacccccccccccccccaaccccccccccaaaaccccccccccccccaaacccccccaaccaaaaaajjjjrrrrrrsssssssssslllcccaaaccccc
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abcccccccccccccaaaaaacccccccccccccccccaaaaaaaaaaaaaaacaaaaaacccccccccccaaacaacccccccccccaaaccccaaacccccaaaaaaaaccccccccaacaaajjjrrrrrrrsssssuusssslmcccaaaacccc
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abcccccccccccccccaacccccccccccccccaacaaaacaaaccaaaaaacaaaaccccccccccccccaaaaaccccccccccccccccccaaaaacccaaaaaaaaccccccccccccaajjjrrrruuurssuuuuvsqqmmcddaaaacccc
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abccccccccccccccccccccccccccccccccaaaaacccaaacccaaaaccccaaccccccccccccccaaaaaaacccccccccccccccaaaaaaccccaaaaaacccccccccccccccjjrrruuuuuuuuuuuuvvqqmmmdddccccccc
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abcccccccccccccccccccccccacccccccccaaaaaccaaacccaaaaccccccccccccccccccccaaaaaaacccccccccccccccaaaaaaccccaaaaaacccccccccaaccccjjjrrtuuuuuuuuyyvvvqqmmmddddcccccc
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abccccccccccccccccccccaaaaccccccccaaaaaacccccaacaccacccccccccccccccccccaaaaaaccccccccccccccccccaaaaaccccaaaaaaccccccccaaaccccjjjrrttuxxxuuxyyyvvqqmmmmdddcccccc
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abcccccccccaacccccccccaaaaaaccccccaaaaccccccaaaccccccccccccccccccccccccaacaaaccccccccccccccccccaacaaccccaaccaaccccaaaaaaaccccjjjrrtttxxxxxyyyyvvqqqmmmddddccccc
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abccccccccaaaacccccccccaaaacccccccccaaccccccaaacaaaccccccccccccccccccaaccccaacccccccccccccccccccccccccccccccccccccaaaaaaaaaacijjqrtttxxxxxyyyvvvqqqqmmmdddccccc
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abcccccacaaaaaccccccccaaaaaccccccccccccccaaaaaaaaaacccccccccccccccccaaaccccccccccccccccccccccccccccccccccccccccccccaaaaaaaaaciiiqqqttxxxxxyyyvvvvqqqqmmmdddcccc
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SbcccccaaaaaaaaaacccccaacaaccccccccccccccaaaaaaaaaccccccccccccccaaacaaacccccccccccccccccccccccccccccccccccccccccccccaaaaaaaciiiqqqtttxxxEzzyyyyvvvqqqmmmdddcccc
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abcccccaaaaaaaaaaccccccccccccaaccccccccccccaaaaaccccccccccccccccaaaaaaaaaacccccccaacccccccccccccaacccccccccccccccccaaaaaaccciiiqqqttxxxxyyyyyyyyvvvqqqmmmeddccc
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abcccccccaaaaaacccccccccccaaaaccccccccccaaaaaaaaacccccccaaaacccccaaaaaaaaacccccaaaaccccccccccaacaaaccccccccccccccccaaaaaaaciiiqqqtttxxyyyyyyyyyvvvvqqqnnneeeccc
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abcccccccaaaaaacccccccccccaaaaaaccccccccaaaaaaaaaaccccccaaaaccccccaaaaaaaccccccaaaaaaccccccccaaaaacccccccccccccccccaaccaaaciiiqqtttxxxxwwyyywwvvvvrrrnnnneeeccc
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abcccccccaaaaaaccccccccccccaaaaacccccccaaaaaaacaaaccccccaaaacccccaaaaaacccccccccaaaaccccccccccaaaaaaccccaaccccccccccccccaaciiqqqtttxxxwwwyywwwwvvrrrrnnneeecccc
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abccccccaaaaaaaaccccccccccaaaaaccccccccaaaaaaccccccccccccaaacccccaaaaaaacccccccaaaaaccccccccaaaaaaaaacccaaccccccccccccccccciiqqqtttttwwswwyywwrrrrrrnnnneeecccc
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abccccccccccccacccccccccccaccaaccccaaccaaaaaacccccccccccaccccccccaaacaaacccccccaacaaccccccccaaaaacaaaaaaaacccccccccaacccccciiqqqqttssssswwwwwrrrrnnnnnneeeecccc
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abcccccccccccccccccccccccccccccaaaaaaccccaacccccccaaacaaacccccccccccccaacaaacccccccccccccccccccaaaccaaaaaaaaccccaacaacccccciiiqqpppsssssswwwwrrrnnnnneeeeeccccc
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abcccccccccccccccccccccccccccccaaaaaaaccccccccccccaaaaaaaccccccccccccccccaaacccccccccccccccccccaaaccaaaaaaaaacccaaaaacccccchhhhppppppppssswwwrroonnfeeeeacccccc
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abccccccccccccccccccccaaaaaccccaaaaaaaaccccccccccccaaaaaaccccccccccccccaaaaaaaacccccccccccccccccccccaaaaaaaaaccccaaaaaaccccchhhhhpppppppsssssrroonfffeeaaaacccc
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abccccccccccccccccccccaaaaacccccaaaaaaaccccccccccccaaaaaaaaccccccccccccaaaaaaaacccccccccccccccccccccaaaaaacccccaaaaaaaacccccchhhhhhhppppsssssrooofffffaaaaacccc
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abcccccaacaaacccccccccaaaaaacccaaaaaacccccccccccccaaaaaaaaacccccccccccccaaaaacccccccccccccccccccccccaaaaaaaccccaaaaaccaccccccchhhhhhhhpppssssrooofffcaaaaaccccc
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abcccccaaaaaacccccccccaaaaaacccaaaaaaccccccccccccaaaaaaaaaacccccccccccccaaaaaaccccccccccccccccccccccaccaaaccccccacaaaccaacccccccchhhhhgppooooooofffcaaaaacccccc
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abcccccaaaaaacccccccccaaaaaaccccccaaacaacccccccccaaacaaaccccccccccaaacccaaaaaaccccccccccccccccccccccccccaaacccccccaaacaaaccccccccccchgggoooooooffffcaaaaaaccccc
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abaccccaaaaaaaccccccccccaaccccccccaaaaaacccccccccccccaaaccccccccccaaaaccaaaccacaacaacccccccccccccccccccccccccccccccaaaaaaaaccccccccccggggoooooffffccaccaaaccccc
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abacccaaaaaaaaccccccccccccccccccccaaaaaccccccccccccccaacccccccaaacaaaacccaaccccaaaaacccccccccccccccccccaacaacccccccaaaaaaaacccccccccccggggggggfffcccccccccccccc
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abacccaaaaaaaaccccccccaaacccccccccaaaaaaccccccccccccccccccccccaaacaaaacaaaaccccaaaaaaccccccccaaccccccccaaaaaccccccccaaaaaaacccccccccccaaggggggffcccccccccccccca
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abcccccccaaacccccccccaaaaaaccccccaaaaaaaacccccccccccccccccccaaaaaaaaaaaaaaaccccaaaaaaccccccacaaaacccccccaaaaacccccccaaaaaccccccccccccaaacgggggaccccccccccccccaa
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abcccccccaaccccccccccaaaaaaccccccaaaaaaaacccccccaaacccccccccaaaaaaaaaaaaaaaacccaaaaaaccccccaaaaaaccccccaaaaaaccccccaaaaaaacccccccccccaaaccccaaaccccccccccaaacaa
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abcccccccccccccccccccaaaaaccccccccccaaccccccccaaaaaccccccccccaaaaaaaaaaaaaaaaccccaaaccccccccaaaacccccccaaaaccccccccccccaaccccccccccccccccccccccccccccccccaaaaaa
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abccccccccccccccccccccaaaaacccccccccaaccccccccaaaaaacccccccccaaaaaaaaaaaaaaaacccccccccccccccaaaacccccccccaacccccccccccccccccccccccccccccccccccccccccccccccaaaaa
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@ -1,10 +0,0 @@
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[package]
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name = "rust_2022_12"
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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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aoc = { path = "../../../common/rust" }
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petgraph = "0.6.2"
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@ -1,93 +0,0 @@
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#![warn(clippy::pedantic)]
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use std::io::{stdin, Read};
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use petgraph::{
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algo::k_shortest_path,
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graph::{Graph, NodeIndex},
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visit::IntoNodeReferences,
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};
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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enum NodeKind {
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Start,
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End,
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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struct NodeData {
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kind: Option<NodeKind>,
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height: u32,
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}
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fn main() {
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let mut data = String::new();
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stdin().read_to_string(&mut data).unwrap();
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// graph of "downhill" edges - edge from A to B means that A is reachable from B
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let mut graph = Graph::<NodeData, (), _>::new();
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let grid: Vec<Vec<NodeIndex>> = data
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.lines()
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.map(|line| {
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line.chars()
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.map(|c| {
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let (kind, c) = match c {
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'S' => (Some(NodeKind::Start), 'a'),
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'E' => (Some(NodeKind::End), 'z'),
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c => (None, c),
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};
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let height = u32::from(c) - u32::from('a');
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let data = NodeData { kind, height };
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graph.add_node(data)
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})
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.collect()
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})
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.collect();
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for (x, row) in grid.iter().enumerate() {
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for (y, &node_id) in row.iter().enumerate() {
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let node = graph[node_id];
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let x = i32::try_from(x).unwrap();
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let y = i32::try_from(y).unwrap();
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let neighbours = [(-1i32, 0), (0, -1), (1, 0), (0, 1)]
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.into_iter()
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.filter_map(|(dx, dy)| {
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let x = usize::try_from(x + dx).ok()?;
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let y = usize::try_from(y + dy).ok()?;
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grid.get(x)?.get(y)
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});
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for &neighbour_id in neighbours {
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let neighbour = graph[neighbour_id];
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if node.height <= (neighbour.height + 1) {
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// `node` is reachable from `neighbour`
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graph.add_edge(node_id, neighbour_id, ());
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}
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}
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}
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}
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let end = graph
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.node_references()
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.find_map(|(id, node)| (node.kind == Some(NodeKind::End)).then_some(id))
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.unwrap();
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let paths = k_shortest_path(&graph, end, None, 1, |_| 1);
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let start = graph
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.node_references()
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.find_map(|(id, node)| (node.kind == Some(NodeKind::Start)).then_some(id))
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.unwrap();
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println!("{:?}", paths[&start]);
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println!(
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"{:?}",
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paths
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.into_iter()
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.filter_map(|(start_id, steps)| (graph[start_id].height == 0).then_some(steps))
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.min()
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.unwrap()
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);
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}
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40
Cargo.lock
generated
40
Cargo.lock
generated
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@ -192,24 +192,12 @@ version = "1.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
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[[package]]
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name = "fixedbitset"
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version = "0.4.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"
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[[package]]
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name = "half"
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version = "1.8.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "eabb4a44450da02c90444cf74558da904edde8fb4e9035a9a6a4e15445af0bd7"
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[[package]]
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name = "hashbrown"
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version = "0.12.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
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[[package]]
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name = "hermit-abi"
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version = "0.1.19"
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@ -219,16 +207,6 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "indexmap"
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version = "1.9.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
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dependencies = [
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"autocfg",
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"hashbrown",
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]
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[[package]]
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name = "itertools"
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version = "0.10.5"
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@ -342,16 +320,6 @@ version = "11.1.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"
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[[package]]
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name = "petgraph"
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version = "0.6.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e6d5014253a1331579ce62aa67443b4a658c5e7dd03d4bc6d302b94474888143"
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dependencies = [
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"fixedbitset",
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"indexmap",
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]
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[[package]]
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name = "plotters"
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version = "0.3.4"
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@ -577,14 +545,6 @@ dependencies = [
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"aoc",
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]
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[[package]]
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name = "rust_2022_12"
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version = "0.1.0"
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dependencies = [
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"aoc",
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"petgraph",
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]
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[[package]]
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name = "ryu"
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version = "1.0.11"
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@ -21,5 +21,4 @@ members = [
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"2022/day9/rust",
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"2022/day10/rust",
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"2022/day11/rust",
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"2022/day12/rust",
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]
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