day05/Cargo.lock

@@ -1,42 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "aho-corasick"
-version = "0.7.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
-dependencies = [
- "memchr",
-]
-
-[[package]]
-name = "day05"
-version = "0.1.0"
-dependencies = [
- "regex",
-]
-
-[[package]]
-name = "memchr"
-version = "2.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
-
-[[package]]
-name = "regex"
-version = "1.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-syntax",
-]
-
-[[package]]
-name = "regex-syntax"
-version = "0.6.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848"

day05/Cargo.toml

@@ -1,9 +0,0 @@
-[package]
-name = "day05"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-regex = "1.7.0"

day05/src/main.rs

@@ -1,69 +0,0 @@
-use std::error;
-use std::fs::File;
-use std::io::BufRead;
-use std::io::BufReader;
-
-use regex::Regex;
-
-fn main() -> Result<(), Box<dyn error::Error>> {
-	let f = File::open("input.txt")?;
-	let reader = BufReader::new(f);
-
-	let mut lines = reader.lines();
-
-	let mut items: Vec<Vec<&str>> = Vec::new();
-
-	// read the initial state
-	let mut init_lines: Vec<String> = vec![];
-	while let Some(Ok(line)) = lines.next() {
-		if line == "" {
-			break;
-		}
-		init_lines.push(line);
-	}
-
-	init_lines.reverse();
-	let mut count = 0;
-	for (i, line) in init_lines.iter().enumerate() {
-		// init the items with the right amount of Vecs
-		if i == 0 {
-			count = line.split_whitespace().count();
-			for _ in 0..count {
-				items.push(vec![]);
-			}
-			continue;
-		}
-
-		// add the items to the vecs
-		// let line_iter = line.chars();
-		for i in 0..count {
-			let item = &line[(i * 4 + 1)..(i * 4 + 2)];
-			if item == " " {
-				continue;
-			}
-			items[i].push(&item);
-		}
-	}
-
-	// read the movements
-	let re = Regex::new(r"^move (\d+) from (\d+) to (\d+)$")?;
-	while let Some(Ok(line)) = lines.next() {
-		// println!("{:?}", re.captures(&line));
-		// println!("{:?}", items);
-		let cap: Vec<usize> = re.captures(&line).ok_or("Could not match line")?.iter().skip(1).map(|x| x.unwrap().as_str().parse().unwrap()).collect();
-		let mut items_to_move = vec![];
-		for _ in 0..cap[0] {
-			let item = items[cap[1] - 1].pop().ok_or("Found a broken match")?;
-			items_to_move.push(item);
-		}
-
-		for item in items_to_move.iter().rev() {
-			items[cap[2] - 1].push(item);
-		}
-	}
-
-    // output the result (top of each item-stack i.e. end of the Vec)
-	// println!("{:?}", items);
-    println!("{}", items.iter().map(|v| String::from(*v.iter().last().unwrap())).collect::<Vec<_>>().join(""));
-    Ok(())
-}