Servius

@darksailor.dev

18 Followers 33 Following

I like rust, nix and writing software as a hobby. I also like music https://last.fm/user/servius_ Probably got some (undiagnosed) adhd

A cpu graph showing 90-100% across all 32 cores.
Video of flipping a butterfly knife
use itertools::Itertools; pub fn peaks_and_valleys<'a, T: PartialOrd + Copy + 'a>( iterator: impl IntoIterator<Item = &'a T>, ) -> Vec<usize> { iterator .into_iter() .enumerate() .tuple_windows() .filter_map(|((_, last), (idx, current), (_, next))| { ((current > last && current > next) || (current < last && current < next)) .then_some(idx) }) .sorted() .collect() } #[test] fn test_peaks_and_valleys() { let data = vec![ (vec![1, 2, 1, 3, 4, 5, 4, 3, 2, 1, 2, 3], vec![1, 2, 5, 9]), (vec![1, 1, 1, 1, 1, 1, 1], vec![]), (vec![1, 0, 1, 0, 1, 0], vec![1, 2, 3, 4]), // Wrong info in the original test case (vec![-5, -10, -7, -15, -12], vec![1, 2, 3]), ]; for (input, expected) in data { let result = peaks_and_valleys(&input); assert_eq!(result, expected); } }