diff --git a/Cargo.lock b/Cargo.lock
index 616a91b..6bec09e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "addr2line"
@@ -19,7 +19,7 @@ checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
 
 [[package]]
 name = "advent-of-code-2024"
-version = "24.0.0"
+version = "24.1.2"
 dependencies = [
  "reqwest",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index b852e6b..0b891e6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 authors = ["Toby <toby@tobot.dev>"]
 name = "advent-of-code-2024"
-version = "24.0.0"
+version = "24.1.2"
 edition = "2021"
 default-run = "get_input"
 
@@ -31,6 +31,10 @@ name = "template"
 path = "src/day00/main.rs"
 test = false
 
+[[bin]]
+name = "day01"
+path = "src/day01/main.rs"
+
 [dependencies]
 reqwest = { version = "0.12.9", features = ["blocking"] }
 
diff --git a/src/day00/input.txt b/day00/input.txt
similarity index 100%
rename from src/day00/input.txt
rename to day00/input.txt
diff --git a/src/day00/main.rs b/day00/main.rs
similarity index 100%
rename from src/day00/main.rs
rename to day00/main.rs
diff --git a/src/day00/part_1.rs b/day00/part_1.rs
similarity index 100%
rename from src/day00/part_1.rs
rename to day00/part_1.rs
diff --git a/src/day00/part_2.rs b/day00/part_2.rs
similarity index 100%
rename from src/day00/part_2.rs
rename to day00/part_2.rs
diff --git a/day01/input.txt b/day01/input.txt
new file mode 100644
index 0000000..721e1a3
--- /dev/null
+++ b/day01/input.txt
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diff --git a/day01/main.rs b/day01/main.rs
new file mode 100644
index 0000000..79c4c71
--- /dev/null
+++ b/day01/main.rs
@@ -0,0 +1,92 @@
+pub const INPUT: &str = include_str!("./input.txt");
+
+fn parse_input(input: &'static str) -> Vec<[u32; 2]> {
+    let input = input
+        .lines()
+        .map(|line| -> [u32; 2] {
+            let nums = line
+                .split_whitespace()
+                .map(|num| num.parse::<u32>().unwrap())
+                .collect::<Vec<_>>();
+            [nums[0], nums[1]]
+        })
+        .collect::<Vec<_>>();
+    input
+}
+
+pub fn main() {
+    let input = parse_input(INPUT);
+    let result_1 = part_1(&input);
+    println!("{result_1}");
+    let result_2 = part_2(&input);
+    println!("{result_2}");
+}
+
+fn part_1(input: &Vec<[u32; 2]>) -> u32 {
+    let mut left = vec![];
+    let mut right = vec![];
+    for pair in input {
+        left.push(pair[0]);
+        right.push(pair[1]);
+    }
+    left.sort_unstable();
+    right.sort_unstable();
+    let mut diff = 0;
+    for i in 0..left.len() {
+        diff += u32::abs_diff(left[i], right[i]);
+    }
+    diff
+}
+
+fn part_2(input: &Vec<[u32; 2]>) -> u32 {
+    let mut left = vec![];
+    let mut right = vec![];
+    for pair in input {
+        left.push(pair[0]);
+        right.push(pair[1]);
+    }
+
+    let mut result = 0;
+
+    for num in left {
+        result += num * right.iter().filter(|&&x| x == num).count() as u32;
+    }
+
+    result
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::parse_input;
+
+    const SAMPLE_INPUT: &str = r#"3   4
+4   3
+2   5
+1   3
+3   9
+3   3"#;
+
+    #[test]
+    fn test_part_1_with_sample_solution() {
+        let input = parse_input(SAMPLE_INPUT);
+        assert_eq!(super::part_1(&input), 11)
+    }
+
+    #[test]
+    fn test_part_1_with_solution() {
+        let input = parse_input(super::INPUT);
+        assert_eq!(super::part_1(&input), 2192892);
+    }
+
+    #[test]
+    fn test_part_2_with_sample_solution() {
+        let input = parse_input(SAMPLE_INPUT);
+        assert_eq!(super::part_2(&input), 31)
+    }
+
+    #[test]
+    fn test_part_2_with_solution() {
+        let input = parse_input(super::INPUT);
+        assert_eq!(super::part_2(&input), 22962826);
+    }
+}
diff --git a/src/get_input.rs b/src/get_input.rs
index 15ca18f..bb0c5c0 100644
--- a/src/get_input.rs
+++ b/src/get_input.rs
@@ -14,7 +14,7 @@ fn main() -> Result<(), Box<dyn Error>> {
         .header("Cookie", format!("session={session}"))
         .build()?;
     let input = client.execute(request)?.text()?;
-    fs::create_dir_all(format!("src/day{day:02}/"))?;
-    fs::write(format!("src/day{day:02}/input.txt"), input)?;
+    fs::create_dir_all(format!("day{day:02}/"))?;
+    fs::write(format!("day{day:02}/input.txt"), input)?;
     Ok(())
 }