1 files changed, 0 insertions, 94 deletions

diff --git a/day11/src/main.rs b/day11/src/main.rs
deleted file mode 100644
index 960accf..0000000
--- a/day11/src/main.rs
+++ /dev/null
@@ -1,94 +0,0 @@
-use std::fs;
-use std::path::Path;
-use std::collections::VecDeque;
-
-const WIDTH: usize = 10;
-const HEIGHT: usize = 10;
-
-/* AOC21 Day 11: https://adventofcode.com/2021/day/11 */
-fn main() {
-    let input = Path::new("resources").join("input.txt");
-    let content = fs::read_to_string(input).expect("Unable to read input file");
-    ex1(&content, 100);
-    ex2(&content);
-}
-
-fn ex1(content: &str, steps: u32) {
-    let mut energy: Vec<u8> = content.lines().flat_map(|l| l.bytes().map(|b| b-b'0')).collect();
-    let mut queue: VecDeque<usize> = VecDeque::with_capacity(2*WIDTH*HEIGHT);
-    println!("Ex1: the result is {}", (0..steps).map(|_| step(&mut energy, &mut queue)).sum::<usize>())
-}
-
-fn ex2(content: &str) {
-    let mut energy: Vec<u8> = content.lines().flat_map(|l| l.bytes().map(|b| b-b'0')).collect();
-    let mut queue: VecDeque<usize> = VecDeque::with_capacity(2*WIDTH*HEIGHT);
-    println!("Ex2: the result is {}", (1..).find(|_| step(&mut energy, &mut queue) == WIDTH*HEIGHT).unwrap());
-}
-
-fn step(energy: &mut [u8], queue: &mut VecDeque<usize>) -> usize {
-    queue.extend(0..energy.len());
-    while let Some(i) = queue.pop_front() {
-        octopus(energy, queue, i);
-    }
-    energy.iter_mut().filter_map(|o| if *o > 9 { *o = 0; Some(o) } else { None }).count()
-}
-
-fn octopus(energy: &mut [u8], queue: &mut VecDeque<usize>, i: usize) {
-    let len = energy.len();
-    energy[i] += 1;
-    if energy[i] == 10 {
-        if i%WIDTH > 0 {
-            queue.push_back(i-1);
-            if i >= WIDTH+1    { queue.push_back(i-WIDTH-1) }
-            if i+WIDTH-1 < len { queue.push_back(i+WIDTH-1) }
-        }
-        if (i+1)%WIDTH > 0 {
-            queue.push_back(i+1);
-            if i >= WIDTH-1    { queue.push_back(i+1-WIDTH) }
-            if i+WIDTH+1 < len { queue.push_back(i+1+WIDTH) }
-        }
-        if i >= WIDTH    { queue.push_back(i-WIDTH) }
-        if i+WIDTH < len { queue.push_back(i+WIDTH) }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    const INPUT: [u8;100] = [
-        5,4,8,3,1,4,3,2,2,3,
-        2,7,4,5,8,5,4,7,1,1,
-        5,2,6,4,5,5,6,1,7,3,
-        6,1,4,1,3,3,6,1,4,6,
-        6,3,5,7,3,8,5,4,7,8,
-        4,1,6,7,5,2,4,6,4,5,
-        2,1,7,6,8,4,1,7,2,1,
-        6,8,8,2,8,8,1,1,3,4,
-        4,8,4,6,8,4,8,5,5,4,
-        5,2,8,3,7,5,1,5,2,6
-    ];
-
-    #[test]
-    fn step10() {
-        let mut input = INPUT.clone();
-        let mut queue = VecDeque::with_capacity(200);
-        let flash = (0..10).map(|_| step(&mut input, &mut queue)).sum::<usize>();
-        assert_eq!(204, flash);
-    }
-
-    #[test]
-    fn step100() {
-        let mut input = INPUT.clone();
-        let mut queue = VecDeque::with_capacity(200);
-        let flash = (0..100).map(|_| step(&mut input, &mut queue)).sum::<usize>();
-        assert_eq!(1656, flash);
-    }
-
-    #[test]
-    fn synchronised() {
-        let mut input = INPUT.clone();
-        let mut queue: VecDeque<usize> = VecDeque::with_capacity(2*WIDTH*HEIGHT);
-        assert_eq!(195, (1..).find(|_| step(&mut input, &mut queue) == WIDTH*HEIGHT).unwrap());
-    }
-}