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2020: day10: use windows for part 1

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Antoine Martin 2020-12-10 15:16:41 +01:00
parent 2381f61118
commit e2544f5160
1 changed files with 3 additions and 1 deletions
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4
aoc2020/src/day10.rs
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@ -39,7 +39,9 @@ fn part1(input: &str) -> aoc::Result<usize> {
let mut differences: [usize; 4] = [0; 4];
for (prev, next) in jolts.iter().zip(jolts.iter().skip(1)) {
for window in jolts.windows(2) {
let prev = window[0];
let next = window[1];
let difference = (next - prev) as usize;
differences[difference] += 1;
}