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2022 day3/rust: use tuple instead of struct

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Xiretza 2022-12-04 09:59:33 +01:00
parent be02406c0f
commit 8b15158631
1 changed files with 5 additions and 10 deletions
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15
2022/day3/rust/src/main.rs
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@ -50,11 +50,6 @@ impl BitAnd for ItemSet {
} }
} }
struct Rucksack {
left: ItemSet,
right: ItemSet,
}
fn main() { fn main() {
let mut data = String::new(); let mut data = String::new();
stdin().read_to_string(&mut data).unwrap(); stdin().read_to_string(&mut data).unwrap();
@ -65,16 +60,16 @@ fn main() {
let (left, right) = line.split_at(line.len() / 2); let (left, right) = line.split_at(line.len() / 2);
assert_eq!(left.len(), right.len()); assert_eq!(left.len(), right.len());
let left = left.chars().collect(); let left: ItemSet = left.chars().collect();
let right = right.chars().collect(); let right: ItemSet = right.chars().collect();
Rucksack { left, right } (left, right)
}) })
.collect(); .collect();
let sum1: u32 = sacks let sum1: u32 = sacks
.iter() .iter()
.map(|sack| (sack.left & sack.right).priority_of_single_item().unwrap()) .map(|&(left, right)| (left & right).priority_of_single_item().unwrap())
.sum(); .sum();
let sum2: u32 = sacks let sum2: u32 = sacks
@ -83,7 +78,7 @@ fn main() {
.map(|sacks| { .map(|sacks| {
sacks sacks
.iter() .iter()
.map(|sack| sack.left | sack.right) .map(|&(left, right)| left | right)
.reduce(BitAnd::bitand) .reduce(BitAnd::bitand)
.unwrap() .unwrap()
.priority_of_single_item() .priority_of_single_item()