feat: day1

Day1/P1/.gitignore

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+/target

Day1/P1/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "P1"
+version = "0.1.0"

Day1/P1/Cargo.toml

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+[package]
+name = "P1"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

Day1/P1/example

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+L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82

Day1/P1/src/main.rs

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+use std::fs;
+
+fn main() {
+    println!("Day 1P1");
+    let contents = fs::read_to_string("test").expect("input not found");
+    let mut value = 50;
+    let mut hits = 0;
+    for line in contents.strip_suffix("\n").unwrap().split("\n") {
+        let mut line_iter = line.chars();
+        let mut left = true;
+        match line_iter.next().unwrap() {
+            'R' => {
+                left = false;
+            }
+            'L' => {}
+            _ => panic!("What the actual fuck"),
+        }
+        let turns_str = line_iter.as_str();
+        let turns: i64 = turns_str.parse().unwrap();
+        // There's probably a rust way to not mess with the types here
+        let dir = match left {
+            true => -1,
+            false => 1,
+        };
+        value = (value + turns * dir) % 100;
+        if value == 0 {
+            hits += 1;
+        }
+    }
+    println!("Yipee {hits}")
+}

Day1/P2/.gitignore

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+/target

Day1/P2/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "P1"
+version = "0.1.0"

Day1/P2/Cargo.toml

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+[package]
+name = "P1"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

Day1/P2/example

@@ -0,0 +1,10 @@
+L68
+L30
+R48
+L5
+R60
+L55
+L1
+L99
+R14
+L82

Day1/P2/src/main.rs

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+use std::fs;
+
+fn main() {
+    println!("Day 1P2");
+    let contents = fs::read_to_string("test").expect("input not found");
+    let mut value = 50;
+    let mut hits = 0;
+    for line in contents.strip_suffix("\n").unwrap().split("\n") {
+        let mut line_iter = line.chars();
+        let left = match line_iter.next().unwrap() {
+            'R' => false,
+            'L' => true,
+            _ => panic!("What the actual fuck"),
+        };
+        let turns_str = line_iter.as_str();
+        let turns: i64 = turns_str.parse().unwrap();
+        // There's probably a rust way to not mess with the types here
+        let dir = match left {
+            true => -1,
+            false => 1,
+        };
+        hits += turns / 100;
+        let bonus = match value {
+            0 => 0,
+            _ => 1,
+        };
+        value += dir * (turns % 100);
+        if !(0..=99).contains(&value) {
+            hits += bonus;
+        }
+        if value == 0 {
+            hits += 1;
+        }
+        value = value.rem_euclid(100);
+    }
+    println!("Yipee {hits}")
+}