thecoded.prof
Advent of Code
feat: setup & day 1
+115
+16
2025/Cargo.lock
+16
2025/Cargo.lock
···
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 4
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[[package]]
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name = "anyhow"
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version = "1.0.100"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a23eb6b1614318a8071c9b2521f36b424b2c83db5eb3a0fead4a6c0809af6e61"
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[[package]]
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name = "aoc2025"
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version = "0.1.0"
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dependencies = [
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"anyhow",
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]
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2025/Cargo.toml
+7
2025/Cargo.toml
+1
2025/src/days/mod.rs
+1
2025/src/days/mod.rs
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pub mod one;
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2025/src/days/one/mod.rs
+1
2025/src/days/one/mod.rs
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pub mod secret_entrance;
+37
2025/src/days/one/secret_entrance.rs
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2025/src/days/one/secret_entrance.rs
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pub fn main() -> anyhow::Result<()> {
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crate::run("Secret Entrance", "inputs/day1.txt", parse, part_a, part_b)
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}
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fn parse(input: &str) -> Vec<i32> {
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input
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.lines()
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.filter(|line| !line.is_empty())
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.filter_map(|line| line.replace("L", "-").replace("R", "").parse().ok())
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.collect()
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}
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fn part_a(input: Vec<i32>) -> usize {
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input
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.iter()
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.scan(50, |state, &rotation| {
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*state += rotation;
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Some(*state)
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})
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.filter(|&state| state % 100 == 0)
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.count()
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}
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fn part_b(input: Vec<i32>) -> usize {
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input
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.iter()
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.scan(50, |state, &rotation| {
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let mut passes = (rotation / 100).abs() as usize;
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let turn = rotation % 100;
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if *state + turn <= 0 && *state != 0 || 99 < *state + turn {
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passes += 1;
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}
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*state = (*state + turn).rem_euclid(100);
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Some(passes)
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})
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.sum()
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}
+47
2025/src/lib.rs
+47
2025/src/lib.rs
···
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pub mod days;
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use std::{fmt::Display, fs, time::Instant};
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use anyhow::Result;
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pub fn run<T, P, A, B, RA, RB>(
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name: &str,
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input_path: &str,
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parse: P,
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part_a: A,
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part_b: B,
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) -> Result<()>
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where
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T: Clone,
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P: Fn(&str) -> T,
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A: Fn(T) -> RA,
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B: Fn(T) -> RB,
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RA: Display,
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RB: Display,
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{
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let input = parse(&fs::read_to_string(input_path)?);
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let label_a = format!("{name} Part A");
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println!("{label_a}");
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println!("{}", "-".repeat(label_a.len()));
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let part_a_start = Instant::now();
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println!("Part A answer: {}", part_a(input.clone()));
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let part_a_elapsed = part_a_start.elapsed();
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println!("Part A time: {:?}", part_a_elapsed);
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println!();
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let label_b = format!("{name} Part B");
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println!("{label_b}");
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println!("{}", "-".repeat(label_b.len()));
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let part_b_start = Instant::now();
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println!("Part B answer: {}", part_b(input.clone()));
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let part_b_elapsed = part_b_start.elapsed();
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println!("Part B time: {:?}", part_b_elapsed);
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println!();
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println!("Total time: {:?}", part_a_elapsed + part_b_elapsed);
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Ok(())
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}