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Day 14 fix part 1 and comment out part 2

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Bill Thiede 2021-12-14 19:56:38 -08:00
parent 0a2c2d13ce
commit 39cf326001
1 changed files with 39 additions and 38 deletions
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9
2021/src/day14.rs
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@ -64,6 +64,7 @@ fn expand_it<'a, I: 'a + Iterator<Item = &'a u8>>(
} }
fn forty_steps<'a, I: 'a + Iterator<Item = &'a u8>>(it: I, rules: &HashMap<&[u8], u8>) -> usize { fn forty_steps<'a, I: 'a + Iterator<Item = &'a u8>>(it: I, rules: &HashMap<&[u8], u8>) -> usize {
return 0;
//let it = (1..40).fold(it, |acc, _| expand_it(acc, &rules)); //let it = (1..40).fold(it, |acc, _| expand_it(acc, &rules));
expand_it( expand_it(
expand_it( expand_it(
@ -173,7 +174,6 @@ fn count(template: &[u8]) -> (usize, usize) {
for k in keys { for k in keys {
s.push_str(&format!("{}: {} ", String::from_utf8_lossy(&[*k]), m[k])); s.push_str(&format!("{}: {} ", String::from_utf8_lossy(&[*k]), m[k]));
} }
println!("Counts: {}", s);
m.values() m.values()
.fold((usize::MAX, 0), |(min, max), v| (min.min(*v), max.max(*v))) .fold((usize::MAX, 0), |(min, max), v| (min.min(*v), max.max(*v)))
} }
@ -192,14 +192,14 @@ fn part1(input: &str) -> Result<usize> {
for i in 1..11 { for i in 1..11 {
template = expand(&template, &rules); template = expand(&template, &rules);
let s = String::from_utf8_lossy(&template); let s = String::from_utf8_lossy(&template);
println!("After step {}: ({}) {}", i, s.len(), s);
count(&template); count(&template);
} }
let (min, max) = count(&template); let (min, max) = count(&template);
Ok(max - min) Ok(max - min)
} }
#[aoc(day14, part2)] // TODO
//#[aoc(day14, part2)]
fn part2(input: &str) -> Result<usize> { fn part2(input: &str) -> Result<usize> {
let (template, rules) = input.split_once("\n\n").unwrap(); let (template, rules) = input.split_once("\n\n").unwrap();
let rules: HashMap<&[u8], u8> = rules let rules: HashMap<&[u8], u8> = rules
@ -248,7 +248,8 @@ mod tests {
Ok(()) Ok(())
} }
#[test] // TODO
//#[test]
fn test_part2() -> Result<()> { fn test_part2() -> Result<()> {
let input = r#" let input = r#"
NNCB NNCB