From ccf1a5828fc26a82545c7accf1ce7916daa08a2d Mon Sep 17 00:00:00 2001 From: alyx Date: Mon, 20 Nov 2023 17:12:15 -0500 Subject: Reorganize using workspaces --- 2015/rs/code/three/src/input.txt | 1 + 2015/rs/code/three/src/main.rs | 29 +++++++++++++++++++++++++++++ 2 files changed, 30 insertions(+) create mode 100644 2015/rs/code/three/src/input.txt create mode 100644 2015/rs/code/three/src/main.rs (limited to '2015/rs/code/three/src') diff --git a/2015/rs/code/three/src/input.txt b/2015/rs/code/three/src/input.txt new file mode 100644 index 0000000..55f286f --- /dev/null +++ b/2015/rs/code/three/src/input.txt @@ -0,0 +1 @@ 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diff --git a/2015/rs/code/three/src/main.rs b/2015/rs/code/three/src/main.rs new file mode 100644 index 0000000..770fc10 --- /dev/null +++ b/2015/rs/code/three/src/main.rs @@ -0,0 +1,29 @@ +use std::collections::HashSet; + +static INPUT: &'static str = include_str!("input.txt"); + +fn main() { + let valueified = INPUT.chars().map(|c| match c { '<' => (-1, 0), '>' => (1, 0), '^' => (0, 1), 'v' => (0, -1), _ => (0, 0) }); + + let mut visited = HashSet::new(); + append_visits(valueified.clone(), &mut visited); + println!("Number visited normally: {}", visited.len()); + + let santa_iter = valueified.clone().step_by(2); + let robot_iter = valueified.skip(1).step_by(2); + + let mut visited = HashSet::new(); + append_visits(santa_iter.clone(), &mut visited); + append_visits(robot_iter.clone(), &mut visited); + println!("Number visited w/ robot: {}", visited.len()); +} + +fn append_visits>(iter: I, visited: &mut HashSet<(i32, i32)>) { + let (mut x, mut y) = (0, 0); + visited.insert((0, 0)); + for (move_x, move_y) in iter { + x += move_x; + y += move_y; + visited.insert((x, y)); + } +} -- cgit v1.2.3-70-g09d2