clippy
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2d506e3799
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28fe5655b2
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@ -11,7 +11,7 @@ fn parse_input(raw: &str) -> Parsed {
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}
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}
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fn hash(s: &[u8]) -> I {
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fn hash(s: &[u8]) -> I {
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s.iter().fold(0, |acc, &b| (acc + b as I) * 17 & 255)
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s.iter().fold(0, |acc, &b| ((acc + b as I) * 17) & 255)
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}
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}
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fn part1(parsed: &Parsed) -> I {
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fn part1(parsed: &Parsed) -> I {
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@ -23,13 +23,13 @@ fn part2(parsed: &Parsed) -> I {
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for s in parsed.clone() {
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for s in parsed.clone() {
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match s.as_bytes() {
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match s.as_bytes() {
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[label @ .., b'-'] => {
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[label @ .., b'-'] => {
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let hash = hash(&label);
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let hash = hash(label);
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if let Some(p) = boxes[hash].iter().position(|(l, _)| l == &label) {
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if let Some(p) = boxes[hash].iter().position(|(l, _)| l == &label) {
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boxes[hash].remove(p);
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boxes[hash].remove(p);
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}
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}
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}
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}
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[label @ .., b'=', focal_strength] => {
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[label @ .., b'=', focal_strength] => {
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let hash = hash(&label);
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let hash = hash(label);
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match boxes[hash].iter().position(|(l, _)| l == &label) {
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match boxes[hash].iter().position(|(l, _)| l == &label) {
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Some(p) => boxes[hash][p] = (&label, focal_strength - b'0'),
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Some(p) => boxes[hash][p] = (&label, focal_strength - b'0'),
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None => boxes[hash].push((&label, focal_strength - b'0')),
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None => boxes[hash].push((&label, focal_strength - b'0')),
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@ -35,7 +35,7 @@ impl<I: Inc + Add<I, Output = I> + AddAssign + Debug, const DIMS: usize> Positio
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let ns = neighbor_vectors::<I, DIMS>();
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let ns = neighbor_vectors::<I, DIMS>();
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let mut out = [*self; num_neighbors(DIMS)];
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let mut out = [*self; num_neighbors(DIMS)];
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for (out, dir) in out.iter_mut().zip(IntoIterator::into_iter(ns).filter(|n| n != &[I::default(); DIMS])) {
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for (out, dir) in out.iter_mut().zip(IntoIterator::into_iter(ns).filter(|n| n != &[I::default(); DIMS])) {
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*out = *out + PositionND(dir);
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*out += PositionND(dir);
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}
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}
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out
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out
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}
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}
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