From 616af4d6944d9c6436e36ab1ef38238819ccea64 Mon Sep 17 00:00:00 2001 From: omagdy7 Date: Sun, 4 Dec 2022 17:36:44 +0200 Subject: Added Rust solution for day3 and day4 --- 2022/Rust/src/day3.rs | 52 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 2022/Rust/src/day3.rs (limited to '2022/Rust/src/day3.rs') diff --git a/2022/Rust/src/day3.rs b/2022/Rust/src/day3.rs new file mode 100644 index 0000000..cb8db12 --- /dev/null +++ b/2022/Rust/src/day3.rs @@ -0,0 +1,52 @@ +use std::collections::HashSet; + +fn solve_part_one(data: &str) -> u32 { + data.lines() + .map(|line| -> u32 { + let (l, r) = line.split_at(line.len() / 2); + let l = l.chars().collect::>(); + let r = r.chars().collect::>(); + let mut acc = 0; + for x in l.intersection(&r) { + if x.is_ascii_uppercase() { + acc += (*x as u8 - 'A' as u8 + 27) as u32; + } else { + acc += (*x as u8 - 'a' as u8 + 1) as u32; + }; + } + acc + }) + .sum() +} + +fn solve_part_two(data: &str) -> u32 { + let vecs: Vec<_> = data + .lines() + .map(|line| line.chars().collect::>()) + .collect(); + + vecs.chunks(3) + .map(|x| -> u32 { + let mut acc : u32 = 0; + for i in x[0] + .iter() + .filter(|ch| x[1].contains(ch)) + .filter(|ch| x[2].contains(ch)) + { + if i.is_ascii_uppercase() { + acc += (*i as u8 - 'A' as u8 + 27) as u32; + } else { + acc += (*i as u8 - 'a' as u8 + 1) as u32; + }; + } + acc + }) + .sum() +} + + +fn main() { + let data = include_str!("../data/day3.prod"); + println!("{}", solve_part_one(data)); + println!("{}", solve_part_two(data)); +} -- cgit v1.2.3