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authorJune McEnroe <june@causal.agency>2017-11-27 17:11:18 -0500
committerJune McEnroe <june@causal.agency>2020-11-22 00:14:25 -0500
commit051be932a389b8bc3ea5d4626575454844639066 (patch)
tree9383502b3205624f7aee8faa014228036b5450f9 /src/bin/day16.rs
parentLicense ISC (diff)
downloadaoc-051be932a389b8bc3ea5d4626575454844639066.tar.gz
aoc-051be932a389b8bc3ea5d4626575454844639066.zip
Move to 2016 directory
Diffstat (limited to 'src/bin/day16.rs')
-rw-r--r--src/bin/day16.rs51
1 files changed, 0 insertions, 51 deletions
diff --git a/src/bin/day16.rs b/src/bin/day16.rs
deleted file mode 100644
index 247d9fd..0000000
--- a/src/bin/day16.rs
+++ /dev/null
@@ -1,51 +0,0 @@
-use std::io::{self, Read};
-
-fn fill_disk(initial_state: &str, len: usize) -> String {
-    let mut state = String::from(initial_state);
-    while state.len() < len {
-        let mut b: Vec<u8> = state.bytes()
-            .map(|b| {
-                match b {
-                    b'0' => b'1',
-                    b'1' => b'0',
-                    _ => b,
-                }
-            })
-            .collect();
-        b.reverse();
-        let b = String::from_utf8(b).unwrap();
-        state.push('0');
-        state.push_str(&b);
-    }
-    state.truncate(len);
-    state
-}
-
-fn checksum(data: &str) -> String {
-    let mut sum = String::from(data);
-    while sum.len() % 2 == 0 {
-        sum = sum.as_bytes()
-            .chunks(2)
-            .map(|c| if c[0] == c[1] { '1' } else { '0' })
-            .collect();
-    }
-    sum
-}
-
-fn solve(len: usize, initial_state: &str) -> String {
-    let data = fill_disk(initial_state, len);
-    checksum(&data)
-}
-
-fn main() {
-    let mut input = String::new();
-    io::stdin().read_to_string(&mut input).unwrap();
-
-    println!("Part 1: {}", solve(272, input.trim()));
-    println!("Part 2: {}", solve(35651584, input.trim()));
-}
-
-#[test]
-fn part1() {
-    assert_eq!("01100", solve(20, "10000"));
-}