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use bitand for sets

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This commit is contained in:
Joe Ardent 2022-12-03 16:22:48 -08:00
parent ad309f5b33
commit b4bf4e61ad
1 changed files with 2 additions and 2 deletions
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2
2022-aoc/src/d3.rs
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@ -34,7 +34,7 @@ fn parse_input2(input: &str) -> Vec<u32> {
let x: HashSet<char> = HashSet::from_iter(x.chars()); let x: HashSet<char> = HashSet::from_iter(x.chars());
let y = HashSet::from_iter(y.chars()); let y = HashSet::from_iter(y.chars());
let z = HashSet::from_iter(z.chars()); let z = HashSet::from_iter(z.chars());
let xy: HashSet<char> = x.intersection(&y).copied().collect(); let xy = &x & &y;
let common = xy.intersection(&z).next().unwrap(); let common = xy.intersection(&z).next().unwrap();
out.push(get_priority(common)); out.push(get_priority(common));
} }