smellyfis/AOC
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

day-10 formated

Browse Source
This commit is contained in:
Dylan Thies
2023-12-12 08:45:47 -05:00
parent 2e97d7045c
commit e9701055e0
2 changed files with 91 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

105
2023/day-10/src/part2.rs
View File

@@ -1,6 +1,6 @@
#![warn(clippy::all, clippy::pedantic)]
use std::{collections::HashMap, iter::successors, fmt::Display};
use std::{collections::HashMap, fmt::Display, iter::successors};
use glam::IVec2;
use itertools::Itertools;
@@ -84,18 +84,22 @@ impl PipeType {
}
impl Display for PipeType {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", match self {
Self::Start => "S",
Self::Horizontal => "-",
Self::Vertical => "|",
Self::DownRight => "F",
Self::DownLeft => "7",
Self::UpRight => "L",
Self::UpLeft => "J",
Self::None => ".",
Self::Outer => "O",
Self::Inner => "I",
})
write!(
f,
"{}",
match self {
Self::Start => "S",
Self::Horizontal => "-",
Self::Vertical => "|",
Self::DownRight => "F",
Self::DownLeft => "7",
Self::UpRight => "L",
Self::UpLeft => "J",
Self::None => ".",
Self::Outer => "O",
Self::Inner => "I",
}
)
}
}
@@ -145,24 +149,29 @@ pub fn part2(input: &str) -> String {
.values()
.find(|x| x.pipe_type == PipeType::Start)
.expect("has a start");
let start_node_true_type = match &start_node.get_adjacent()
let start_node_true_type = match &start_node
.get_adjacent()
.iter()
.filter_map(|(x, from)| grid.get(x).map(|y| (y, *from)))
.filter_map(|(x, from)| {
x.get_adjacent()
.iter()
.filter_map(|(x, from)| grid.get(x).map(|y| (y, *from)))
.filter_map(|(x, from)| {
x.get_adjacent()
.iter()
.map(|(y, _)| y)
.contains(&start_node.position).then_some(from)
})
.collect::<Vec<_>>()[..]{
[PipeFrom::Up, PipeFrom::Left] | [PipeFrom::Left, PipeFrom::Up] => PipeType::DownRight,
[PipeFrom::Up, PipeFrom::Right] | [PipeFrom::Right, PipeFrom::Up] => PipeType::DownLeft,
[PipeFrom::Down, PipeFrom::Left] | [PipeFrom::Left, PipeFrom::Down] => PipeType::UpRight,
[PipeFrom::Down, PipeFrom::Right] | [PipeFrom::Right, PipeFrom::Down] => PipeType::UpLeft,
[PipeFrom::Up, PipeFrom::Down] | [PipeFrom::Down, PipeFrom::Up] => PipeType::Vertical,
[PipeFrom::Right, PipeFrom::Left] | [PipeFrom::Left, PipeFrom::Right] => PipeType::Horizontal,
_ => PipeType::Start,
};
.map(|(y, _)| y)
.contains(&start_node.position)
.then_some(from)
})
.collect::<Vec<_>>()[..]
{
[PipeFrom::Up, PipeFrom::Left] | [PipeFrom::Left, PipeFrom::Up] => PipeType::DownRight,
[PipeFrom::Up, PipeFrom::Right] | [PipeFrom::Right, PipeFrom::Up] => PipeType::DownLeft,
[PipeFrom::Down, PipeFrom::Left] | [PipeFrom::Left, PipeFrom::Down] => PipeType::UpRight,
[PipeFrom::Down, PipeFrom::Right] | [PipeFrom::Right, PipeFrom::Down] => PipeType::UpLeft,
[PipeFrom::Up, PipeFrom::Down] | [PipeFrom::Down, PipeFrom::Up] => PipeType::Vertical,
[PipeFrom::Right, PipeFrom::Left] | [PipeFrom::Left, PipeFrom::Right] => {
PipeType::Horizontal
}
_ => PipeType::Start,
};
let mut pieces = HashMap::new();
pieces.insert(start_node.position, start_node_true_type);
@@ -221,24 +230,23 @@ pub fn part2(input: &str) -> String {
print!("\n");
});
*/
(corners.0.1..=corners.1.1)
.for_each(|y| {
let mut status = false;
(corners.0.0..=corners.1 .0)
.map(|x| IVec2::new(x, y))
.for_each(|pos| {
if let Some(piece) = pieces.get(&pos) {
status = match piece {
PipeType::Vertical | PipeType::DownRight | PipeType::DownLeft => !status,
_ => status,
};
} else if status {
pieces.insert(pos, PipeType::Inner);
} else {
pieces.insert(pos, PipeType::Outer);
}
});
});
(corners.0 .1..=corners.1 .1).for_each(|y| {
let mut status = false;
(corners.0 .0..=corners.1 .0)
.map(|x| IVec2::new(x, y))
.for_each(|pos| {
if let Some(piece) = pieces.get(&pos) {
status = match piece {
PipeType::Vertical | PipeType::DownRight | PipeType::DownLeft => !status,
_ => status,
};
} else if status {
pieces.insert(pos, PipeType::Inner);
} else {
pieces.insert(pos, PipeType::Outer);
}
});
});
/* Debug
println!();
(corners.0 .1..=corners.1 .1).for_each(|y| {
@@ -365,4 +373,3 @@ L7JLJL-JLJLJL--JLJ.L",
assert_eq!(result, expected);
}
}