chore: add 2025 init

Signed-off-by: markkovari <kovarimarkofficial@gmail.com>

Author: markkovari

2025/.gitignore

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+target

2025/Cargo.lock

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+[package]
+name = "aoc_2025"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

2025/Cargo.toml

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+use std::str::FromStr;
+use std::error::Error;
+
+
+#[derive(Debug)]
+enum Rotation {
+    Left(i32),
+    Right(i32),
+}
+
+#[derive(Debug)]
+struct Dial {
+    position: i32,
+}
+
+impl Default for Dial {
+    fn default() -> Self {
+        Dial { position: 50 }
+    }
+}
+
+
+impl Dial {
+    pub fn rotate(&mut self, _rotation: Rotation) {
+        self.position;
+    }
+
+    pub fn isZero(self) -> bool {
+        self.position == 0
+    }
+}
+
+#[derive(Debug)]
+pub enum ParseRotationError {
+    InvalidDirectionLength,
+    InvalidDirectionChar,
+}
+
+impl FromStr for Rotation {
+    type Err = ParseRotationError;
+
+    // Required method
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        if s.is_empty() {
+            return Err(ParseRotationError::InvalidDirectionLength);
+        }
+        let (dir_char, rotation_amount) = s.split_at(1);
+
+        let rotation: i32 = rotation_amount.parse()?;
+        match dir_char {
+            "R" => Rotation { Right: rotation },
+            "L" => Rotation { Left: rotation },
+            _ => Err(ParseRotationError::InvalidDirectionChar),
+        }
+    }
+}
+
+pub fn parse_rotations(input: String) -> Option<Vec<Rotation>> {
+    input.lines().map(|l| l.parse())
+}
+
+fn main() {
+    let initial_text = r#"L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82"#;
+
+    if let Ok(rotations) = parse_rotations(initial_text.to_string()) {
+        println!("{:?}", rotations);
+    }
+
+    println!("Hello, world!");
+}