From 051be932a389b8bc3ea5d4626575454844639066 Mon Sep 17 00:00:00 2001
From: June McEnroe <june@causal.agency>
Date: Mon, 27 Nov 2017 17:11:18 -0500
Subject: Move to 2016 directory

---
 src/bin/day08.rs | 148 -------------------------------------------------------
 1 file changed, 148 deletions(-)
 delete mode 100644 src/bin/day08.rs

(limited to 'src/bin/day08.rs')

diff --git a/src/bin/day08.rs b/src/bin/day08.rs
deleted file mode 100644
index 1443ec3..0000000
--- a/src/bin/day08.rs
+++ /dev/null
@@ -1,148 +0,0 @@
-use std::fmt::{Display as FmtDisplay, Error as FmtError, Formatter};
-use std::io::{self, Read};
-use std::ops::{Index, IndexMut};
-use std::str::FromStr;
-
-enum Operation {
-    Rect(usize, usize),
-    RotateRow(usize, usize),
-    RotateColumn(usize, usize),
-}
-
-impl FromStr for Operation {
-    type Err = ();
-    fn from_str(s: &str) -> Result<Self, ()> {
-        if s.starts_with("rect") {
-            let mut iter = s[5..].split('x');
-            let width = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            let height = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            Ok(Operation::Rect(width, height))
-
-        } else if s.starts_with("rotate row") {
-            let mut iter = s[13..].split(" by ");
-            let y = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            let count = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            Ok(Operation::RotateRow(y, count))
-
-        } else if s.starts_with("rotate column") {
-            let mut iter = s[16..].split(" by ");
-            let x = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            let count = iter.next().ok_or(())?.parse().map_err(|_| ())?;
-            Ok(Operation::RotateColumn(x, count))
-
-        } else {
-            Err(())
-        }
-    }
-}
-
-struct Display {
-    width: usize,
-    height: usize,
-    pixels: Box<[bool]>,
-}
-
-impl Index<(usize, usize)> for Display {
-    type Output = bool;
-    fn index(&self, index: (usize, usize)) -> &bool {
-        &self.pixels[index.1 * self.width + index.0]
-    }
-}
-
-impl IndexMut<(usize, usize)> for Display {
-    fn index_mut(&mut self, index: (usize, usize)) -> &mut bool {
-        &mut self.pixels[index.1 * self.width + index.0]
-    }
-}
-
-impl Display {
-    fn new(width: usize, height: usize) -> Self {
-        Display {
-            width: width,
-            height: height,
-            pixels: vec![false; width * height].into_boxed_slice(),
-        }
-    }
-
-    fn apply(&mut self, operation: Operation) {
-        match operation {
-            Operation::Rect(width, height) => {
-                for y in 0..height {
-                    for x in 0..width {
-                        self[(x, y)] = true;
-                    }
-                }
-            },
-
-            Operation::RotateRow(y, count) => {
-                for _ in 0..count {
-                    let last = self[(self.width - 1, y)];
-                    for x in (1..self.width).rev() {
-                        self[(x, y)] = self[(x - 1, y)];
-                    }
-                    self[(0, y)] = last;
-                }
-            },
-
-            Operation::RotateColumn(x, count) => {
-                for _ in 0..count {
-                    let last = self[(x, self.height - 1)];
-                    for y in (1..self.height).rev() {
-                        self[(x, y)] = self[(x, y - 1)];
-                    }
-                    self[(x, 0)] = last;
-                }
-            },
-        }
-    }
-
-    fn pixels_lit(&self) -> usize {
-        self.pixels.iter().filter(|&&p| p).count()
-    }
-}
-
-impl FmtDisplay for Display {
-    fn fmt(&self, f: &mut Formatter) -> Result<(), FmtError> {
-        for y in 0..self.height {
-            for x in 0..self.width {
-                if self[(x, y)] {
-                    write!(f, "#")?;
-                } else {
-                    write!(f, " ")?;
-                }
-            }
-            write!(f, "\n")?;
-        }
-        Ok(())
-    }
-}
-
-fn solve(width: usize, height: usize, input: &str) -> Display {
-    let mut display = Display::new(width, height);
-
-    for line in input.lines() {
-        display.apply(line.parse().unwrap());
-    }
-
-    display
-}
-
-fn main() {
-    let mut input = String::new();
-    io::stdin().read_to_string(&mut input).unwrap();
-
-    let display = solve(50, 6, &input);
-    println!("Part 1: {}", display.pixels_lit());
-    println!("Part 2:\n{}", display);
-}
-
-#[test]
-fn part1() {
-    let input = "
-rect 3x2
-rotate column x=1 by 1
-rotate row y=0 by 4
-rotate row x=1 by 1
-";
-    assert_eq!(6, solve(7, 3, input.trim()).pixels_lit());
-}
-- 
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