day1 first

2025/day1/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "day1"
+version = "0.1.0"

2025/day1/Cargo.toml

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+[package]
+name = "day1"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

2025/day1/src/main.rs

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+use std::fs;
+
+const FILE_PATH: &str = "./src/input.txt";
+
+fn main() {
+    first();
+    second();
+}
+
+fn first() {
+    println!("Hello, world!");
+
+    let raw_contents = fs::read_to_string(FILE_PATH)
+        .expect("Couldn't open the input.txt file");
+    let contents = raw_contents.trim();
+
+    let mut result = 0;
+    let mut starting_value: i32 = 50;
+    for line in contents.lines() {
+        let direction: char  = line.chars().nth(0).unwrap();
+        let value: i32 = line.chars().skip(1).collect::<String>().parse().unwrap();
+        
+        starting_value += if direction == 'R' { value } else if direction == 'L' { -value } else { 0 };
+        while starting_value > 99 {
+            starting_value -= 100
+        }
+        while starting_value < 0 {
+            starting_value += 100
+        }
+        if starting_value == 0 {
+            result += 1;
+        }
+        println!("Line: {line} ({starting_value}, {result})");
+
+    }
+    println!("Result: {result}");
+}
+
+fn second() {
+    println!("Hello, world!");
+
+    let raw_contents = fs::read_to_string(FILE_PATH)
+        .expect("Couldn't open the input.txt file");
+    let contents = raw_contents.trim();
+
+    let mut result = 0;
+    let mut starting_value: i32 = 50;
+    for line in contents.lines() {
+        let direction: char  = line.chars().nth(0).unwrap();
+        let value: i32 = line.chars().skip(1).collect::<String>().parse().unwrap();
+        
+        starting_value += if direction == 'R' { value } else if direction == 'L' { -value } else { 0 };
+        while starting_value > 99 {
+            starting_value -= 100
+        }
+        while starting_value < 0 {
+            starting_value += 100
+        }
+        if starting_value == 0 {
+            result += 1;
+        }
+        println!("Line: {line} ({starting_value}, {result})");
+
+    }
+    println!("Result: {result}");
+}