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Day 14 Part 1 Complete -> Really happy with my solution here

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Luke Else
2023-12-14 17:38:01 +00:00
parent 9fb69c573b
commit a3b2847d6b
5 changed files with 163 additions and 6 deletions
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100
src/input/day14
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@@ -0,0 +1,100 @@
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src/input/day14_test1
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@@ -0,0 +1,10 @@
O....#....
O.OO#....#
.....##...
OO.#O....O
.O.....O#.
O.#..O.#.#
..O..#O..O
.......O..
#....###..
#OO..#....

10
src/input/day14_test2
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@@ -0,0 +1,10 @@
O....#....
O.OO#....#
.....##...
OO.#O....O
.O.....O#.
O.#..O.#.#
..O..#O..O
.......O..
#....###..
#OO..#....

2
src/main.rs
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@@ -21,7 +21,7 @@ async fn main() -> Result<(), Box<dyn Error>> {
Box::new(day11::Day11 {}),
Box::new(day12::Day12 {}),
Box::new(day13::Day13 {}),
// Box::new(day14::Day14 {}),
Box::new(day14::Day14 {}),
// Box::new(day15::Day15 {}),
// Box::new(day16::Day16 {}),
// Box::new(day17::Day17 {}),

47
src/solutions/day14.rs
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@@ -5,9 +5,16 @@ pub struct Day14 {}
impl Solution for Day14 {
fn part1(
&self,
_input: &mut Vec<String>,
input: &mut Vec<String>,
) -> Result<Box<dyn std::fmt::Display + Sync>, Box<dyn std::error::Error>> {
Ok(Box::new("Ready"))
let mut rock_formation = input
.iter()
.map(|r| r.chars().collect::<Vec<_>>())
.collect::<Vec<_>>();
self.pull_north(&mut rock_formation);
Ok(Box::new(self.get_load(&rock_formation)))
}
fn part2(
@@ -22,7 +29,37 @@ impl Solution for Day14 {
}
}
impl Day14 {}
impl Day14 {
// Function that pulls all of the 'O's as far north as they will go
fn pull_north(&self, cave: &mut Vec<Vec<char>>) {
let mut complete = false;
while !complete {
complete = true;
for row in 1..cave.len() {
for col in 0..cave[0].len() {
if cave[row][col] == 'O' && cave[row - 1][col] == '.' {
cave[row][col] = '.';
cave[row - 1][col] = 'O';
complete = false;
}
}
}
}
}
// Function that calculates the load on the north beams of the cave
fn get_load(&self, cave: &Vec<Vec<char>>) -> u32 {
(0..cave.len())
.map(|row| {
(0..cave[0].len())
.filter(|col| cave[row][*col] == 'O')
.map(|_| cave.len() - row)
.sum::<usize>()
})
.sum::<usize>() as u32
}
}
/// Test from puzzle input
#[cfg(test)]
@@ -44,7 +81,7 @@ mod test {
.unwrap()
.to_string();
assert_eq!(answer, "Ready");
assert_eq!(answer, "136");
}
#[test]
@@ -63,4 +100,4 @@ mod test {
assert_eq!(answer, "Ready");
}
}
}