Reorganize Rust

AdventOfCode.code-workspace

@@ -6,6 +6,9 @@
 	],
 	"settings": {
 		"editor.wordBasedSuggestions": false,
-		"javascript.suggest.names": false
+		"javascript.suggest.names": false,
+		"rust-analyzer.linkedProjects": [
+			"./rust/Cargo.toml"
+		]
 	}
 }

Rust/day1/Cargo.toml

@@ -1,13 +0,0 @@
-[package]
-name = "day1"
-version = "0.1.0"
-authors = ["GitHub <noreply@github.com>"]
-edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-
-[[bin]]
-name = "day1"
-path = "main.rs"

Rust/day1/main.rs

@@ -1,64 +0,0 @@
-use std::fs::File;
-use std::io;
-use std::io::prelude::*;
-use std::path::Path;
-
-fn parse_input<B: BufRead>(buf: B) -> Vec<u64> {
-    buf.lines()
-        .map(|line| {
-            line.expect("Failed to read line.")
-                .parse()
-                .expect("Failed to parse line input.")
-        })
-        .collect()
-}
-
-fn puzzle_a(nums: &[u64]) -> Option<u64> {
-    for a in nums {
-        for b in nums {
-            if a + b == 2020 {
-                return Some(a * b);
-            }
-        }
-    }
-    None
-}
-
-fn puzzle_b(nums: &[u64]) -> Option<u64> {
-    for a in nums {
-        for b in nums {
-            for c in nums {
-                if a + b + c == 2020 {
-                    return Some(a * b * c);
-                }
-            }
-        }
-    }
-
-    None
-}
-
-fn open_file<P>(filename: P) -> io::Result<io::BufReader<File>>
-where
-    P: AsRef<Path>,
-{
-    let file = File::open(filename)?;
-    Ok(io::BufReader::new(file))
-}
-
-fn main() -> Result<(), &'static str> {
-    let buffer = open_file("input").unwrap();
-    let puzzle_input = parse_input(buffer);
-
-    println!(
-        "Part A:\n{}",
-        puzzle_a(&puzzle_input).expect("No solution for A found.")
-    );
-    println!("--------");
-    println!(
-        "Part B:\n{}",
-        puzzle_b(&puzzle_input).expect("No solution for B found.")
-    );
-
-    Ok(())
-}

rust/Cargo.lock

@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
-name = "day1"
-version = "0.1.0"
+name = "advent-of-code"
+version = "20.1.2"

rust/Cargo.toml

@@ -0,0 +1,28 @@
+[package]
+name = "advent-of-code"
+version = "20.1.2"
+edition = "2021"
+resolver = "2"
+
+[profile.release]
+strip = "symbols"
+lto = "fat"
+opt-level = 3
+codegen-units = 1
+
+[profile.dev.package."*"]
+opt-level = 3
+codegen-units = 1
+[profile.release.package."*"]
+opt-level = 3
+codegen-units = 1
+[profile.dev.build-override]
+opt-level = 3
+codegen-units = 1
+[profile.release.build-override]
+opt-level = 3
+codegen-units = 1
+
+[[bin]]
+name = "day01"
+path = "src/day01/main.rs"

rust/src/day00/input.txt

@@ -0,0 +1 @@
+Placeholder input

rust/src/day00/main.rs

@@ -0,0 +1,11 @@
+const INPUT: &str = include_str!("input.txt");
+
+mod part_1;
+use part_1::part_1;
+mod part_2;
+use part_2::part_2;
+
+pub fn main() {
+    part_1(INPUT);
+    part_2(INPUT);
+}

rust/src/day00/part_1.rs

@@ -0,0 +1,24 @@
+pub(crate) fn part_1(_input: &'static str) -> u64 {
+    todo!("Part 1")
+}
+
+#[cfg(test)]
+mod tests {
+    const SAMPLE_INPUT: &str = include_str!("sample_input.txt");
+
+    #[test]
+    fn test_with_sample_solution() {
+        assert_eq!(
+            super::part_1(SAMPLE_INPUT),
+            todo!("Add result from example part 1")
+        );
+    }
+
+    #[test]
+    fn test_with_solution() {
+        assert_eq!(
+            super::part_1(crate::INPUT),
+            todo!("Add result for solved part 1")
+        );
+    }
+}

rust/src/day00/part_2.rs

@@ -0,0 +1,24 @@
+pub(crate) fn part_2(_input: &'static str) -> u64 {
+    todo!("Part 2")
+}
+
+#[cfg(test)]
+mod tests {
+    const SAMPLE_INPUT: &str = include_str!("sample_input.txt");
+
+    #[test]
+    fn test_with_sample_solution() {
+        assert_eq!(
+            super::part_2(SAMPLE_INPUT),
+            todo!("Add result from example part 2")
+        );
+    }
+
+    #[test]
+    fn test_with_solution() {
+        assert_eq!(
+            super::part_2(crate::INPUT),
+            todo!("Add result for solved part 2")
+        );
+    }
+}

rust/src/day01/main.rs

@@ -0,0 +1,19 @@
+const INPUT: &str = include_str!("input.txt");
+
+mod part_1;
+use part_1::part_1;
+mod part_2;
+use part_2::part_2;
+
+fn parse_input(input: &'static str) -> Vec<u64> {
+    input
+        .lines()
+        .map(|line| line.parse().expect("Failed to parse line input."))
+        .collect()
+}
+
+pub fn main() {
+    let input = parse_input(INPUT);
+    part_1(&input);
+    part_2(&input);
+}

rust/src/day01/part_1.rs

@@ -0,0 +1,27 @@
+pub(crate) fn part_1(nums: &[u64]) -> u64 {
+    for a in nums {
+        for b in nums {
+            if a + b == 2020 {
+                let result = a * b;
+                println!("Part 1: {result}");
+                return result;
+            }
+        }
+    }
+    unreachable!("No solution found for part 1");
+}
+
+#[cfg(test)]
+mod tests {
+    const SAMPLE_INPUT: &str = include_str!("sample_input.txt");
+
+    #[test]
+    fn test_with_sample_solution() {
+        assert_eq!(super::part_1(&crate::parse_input(SAMPLE_INPUT)), 514579);
+    }
+
+    #[test]
+    fn test_with_solution() {
+        assert_eq!(super::part_1(&crate::parse_input(crate::INPUT)), 964875);
+    }
+}

rust/src/day01/part_2.rs

@@ -0,0 +1,29 @@
+pub(crate) fn part_2(nums: &[u64]) -> u64 {
+    for a in nums {
+        for b in nums {
+            for c in nums {
+                if a + b + c == 2020 {
+                    let result = a * b * c;
+                    println!("Part 2: {result}");
+                    return result;
+                }
+            }
+        }
+    }
+    unreachable!("No solution found for part 2")
+}
+
+#[cfg(test)]
+mod tests {
+    const SAMPLE_INPUT: &str = include_str!("sample_input.txt");
+
+    #[test]
+    fn test_with_sample_solution() {
+        assert_eq!(super::part_2(&crate::parse_input(SAMPLE_INPUT)), 241861950);
+    }
+
+    #[test]
+    fn test_with_solution() {
+        assert_eq!(super::part_2(&crate::parse_input(crate::INPUT)), 158661360);
+    }
+}

rust/src/day01/sample_input.txt

@@ -0,0 +1,6 @@
+1721
+979
+366
+299
+675
+1456