2025/rust/day-06/Cargo.lock

@@ -1,7 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 4
-
-[[package]]
-name = "day-06"
-version = "0.1.0"

2025/rust/day-06/Cargo.toml

@@ -1,6 +0,0 @@
-[package]
-name = "day-06"
-version = "0.1.0"
-edition = "2024"
-
-[dependencies]

2025/rust/day-06/src/main.rs

@@ -1,127 +0,0 @@
-use std::{fmt::Debug, fs, str::FromStr};
-
-#[derive(PartialEq, Debug)]
-enum Operation {
-    Add,
-    Multiply,
-}
-
-impl FromStr for Operation {
-    type Err = ();
-
-    fn from_str(input: &str) -> Result<Operation, Self::Err> {
-        match input {
-            "+" => Ok(Operation::Add),
-            "*" => Ok(Operation::Multiply),
-            _ => Err(()),
-        }
-    }
-}
-
-#[derive(Debug)]
-struct Problem {
-    numbers: Vec<u64>,
-    operation: Operation,
-}
-
-impl Problem {
-    fn solve(&self) -> u64 {
-        match self.operation {
-            Operation::Add => self.numbers.iter().sum(),
-            Operation::Multiply => self.numbers.iter().product(),
-        }
-    }
-}
-
-fn main() {
-    let content = &mut fs::read_to_string("../../inputs/06.txt").unwrap();
-
-    println!("Grand total 1: {}", grand_total(&parse_input_v1(content)));
-    println!("Grand total 2: {}", grand_total(&parse_input_v2(content)));
-}
-
-fn parse_input_v1(contents: &str) -> Vec<Problem> {
-    let grid: Vec<Vec<&str>> = contents
-        .trim()
-        .lines()
-        .map(|line| line.split_whitespace().collect())
-        .collect();
-
-    let operations_row = grid.last().unwrap();
-    let num_cols = grid[0].len();
-
-    (0..num_cols)
-        .map(|col_index| {
-            let operation = Operation::from_str(operations_row[col_index]).unwrap();
-
-            let numbers = grid[..grid.len() - 1]
-                .iter()
-                .map(|row| row[col_index].parse().unwrap())
-                .collect();
-
-            Problem { numbers, operation }
-        })
-        .collect()
-}
-
-fn parse_input_v2(contents: &str) -> Vec<Problem> {
-    let grid: Vec<Vec<u8>> = contents
-        .trim_end_matches('\n')
-        .lines()
-        .map(|line| line.as_bytes().to_vec())
-        .collect();
-
-    let operations_row = grid.last().unwrap();
-
-    let mut problems = Vec::new();
-
-    let mut numbers = Vec::new();
-    let mut operation = Operation::Add;
-
-    for col in 0..grid[0].len() {
-        if let Ok(op) = Operation::from_str(&(operations_row[col] as char).to_string()) {
-            operation = op;
-        }
-
-        let column: String = (0..grid.len() - 1)
-            .map(|row| grid[row][col] as char)
-            .filter(|c| !c.is_whitespace())
-            .collect();
-
-        if column.is_empty() {
-            problems.push(Problem { numbers, operation });
-            numbers = Vec::new();
-            operation = Operation::Add;
-        } else {
-            numbers.push(column.parse().unwrap());
-        }
-    }
-    problems.push(Problem { numbers, operation });
-
-    problems
-}
-
-fn grand_total(problems: &[Problem]) -> u64 {
-    problems.iter().map(Problem::solve).sum()
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    const TEST_INPUT: &str = "123 328  51 64 
- 45 64  387 23 
-  6 98  215 314
-*   +   *   +  
-";
-
-    #[test]
-    fn test_part1() {
-        assert_eq!(grand_total(&parse_input_v1(TEST_INPUT)), 4277556);
-    }
-
-    #[test]
-    fn test_part2() {
-        assert_eq!(grand_total(&parse_input_v2(TEST_INPUT)), 3263827);
-    }
-}

flake.lock

@@ -3,10 +3,10 @@
     "inputs": {
       "flake": false,
       "locked": {
-        "lastModified": 1765025072,
+        "lastModified": 1764926544,
-        "narHash": "sha256-mTX6WtSh/OWj4nAsDdr8fkAOPZgANHQc/DURFczQBC4=",
+        "narHash": "sha256-xIkgV9KrBel6Qwy673iMmmggFGZ9Zz93Hd/lGhRyHRM=",
         "ref": "refs/heads/main",
-        "rev": "b425d990c6bf65f69566c0167e1ff8049c87bc2a",
+        "rev": "27de1eaccb499f25dca8f3505b4c4f42a8e35514",
         "shallow": true,
         "type": "git",
         "url": "ssh://git@github.com/SebastianStork/advent-of-code-inputs.git"