1 files changed, 0 insertions, 124 deletions
diff --git a/src/bin/day09.rs b/src/bin/day09.rs
deleted file mode 100644
index f559b47..0000000
--- a/src/bin/day09.rs
+++ /dev/null
@@ -1,124 +0,0 @@
-use std::io::{self, Read};
-
-enum Chunk<'a> {
-    Literal(&'a str),
-    Repeat(u32, &'a str),
-    Recursive(u32, Vec<Chunk<'a>>),
-}
-
-impl<'a> Chunk<'a> {
-    fn len(&self) -> usize {
-        match *self {
-            Chunk::Literal(s) => s.len(),
-            Chunk::Repeat(n, s) => n as usize * s.len(),
-            Chunk::Recursive(n, ref cs) => n as usize * cs.iter().map(Chunk::len).sum::<usize>(),
-        }
-    }
-
-    fn parse(s: &'a str) -> Result<(Self, &'a str), ()> {
-        if s.starts_with('(') {
-            let mut iter = s[1..].splitn(3, |ch| ch == 'x' || ch == ')');
-
-            let len = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            let repeat = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            let (data, rest) = iter.next().ok_or(())?.split_at(len);
-
-            Ok((Chunk::Repeat(repeat, data), rest))
-        } else {
-            let paren = s.find('(').unwrap_or(s.len());
-            Ok((Chunk::Literal(&s[..paren]), &s[paren..]))
-        }
-    }
-
-    fn parse_v2(s: &'a str) -> Result<(Self, &'a str), ()> {
-        if s.starts_with('(') {
-            let mut iter = s[1..].splitn(3, |ch| ch == 'x' || ch == ')');
-
-            let len = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            let repeat = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            let (mut data, rest) = iter.next().ok_or(())?.split_at(len);
-
-            let mut chunks = Vec::new();
-            while !data.is_empty() {
-                let (chunk, data_rest) = Chunk::parse_v2(data)?;
-                chunks.push(chunk);
-                data = data_rest;
-            }
-
-            Ok((Chunk::Recursive(repeat, chunks), rest))
-        } else {
-            let paren = s.find('(').unwrap_or(s.len());
-            Ok((Chunk::Literal(&s[..paren]), &s[paren..]))
-        }
-    }
-}
-
-struct File<'a> {
-    chunks: Vec<Chunk<'a>>,
-}
-
-impl<'a> File<'a> {
-    fn len(&self) -> usize {
-        self.chunks.iter().map(Chunk::len).sum()
-    }
-
-    fn parse(mut s: &'a str) -> Result<Self, ()> {
-        let mut chunks = Vec::new();
-
-        while !s.is_empty() {
-            let (chunk, rest) = Chunk::parse(s)?;
-            chunks.push(chunk);
-            s = rest;
-        }
-
-        Ok(File { chunks: chunks })
-    }
-
-    fn parse_v2(mut s: &'a str) -> Result<Self, ()> {
-        let mut chunks = Vec::new();
-
-        while !s.is_empty() {
-            let (chunk, rest) = Chunk::parse_v2(s)?;
-            chunks.push(chunk);
-            s = rest;
-        }
-
-        Ok(File { chunks: chunks })
-    }
-}
-
-fn solve1(input: &str) -> usize {
-    let file = File::parse(input).unwrap();
-    file.len()
-}
-
-fn solve2(input: &str) -> usize {
-    let file = File::parse_v2(input).unwrap();
-    file.len()
-}
-
-fn main() {
-    let mut input = String::new();
-    io::stdin().read_to_string(&mut input).unwrap();
-
-    println!("Part 1: {}", solve1(&input));
-    println!("Part 2: {}", solve2(&input));
-}
-
-#[test]
-fn part1() {
-    assert_eq!(6, solve1("ADVENT"));
-    assert_eq!(7, solve1("A(1x5)BC"));
-    assert_eq!(9, solve1("(3x3)XYZ"));
-    assert_eq!(11, solve1("A(2x2)BCD(2x2)EFG"));
-    assert_eq!(6, solve1("(6x1)(1x3)A"));
-    assert_eq!(18, solve1("X(8x2)(3x3)ABCY"));
-}
-
-#[test]
-fn part2() {
-    assert_eq!(9, solve2("(3x3)XYZ"));
-    assert_eq!(20, solve2("X(8x2)(3x3)ABCY"));
-    assert_eq!(241920, solve2("(27x12)(20x12)(13x14)(7x10)(1x12)A"));
-    assert_eq!(445, solve2("(25x3)(3x3)ABC(2x3)XY(5x2)PQRSTX(18x9)(3x2)TWO(5x7)SEVEN"));
-}