initial commit

This commit is contained in:
Jan Christian Grünhage 2021-12-01 23:05:08 +01:00
commit f3afa52c9b
5 changed files with 204 additions and 0 deletions

2
.gitignore vendored Normal file
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/target
/input

131
Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
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Cargo.toml Normal file
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[package]
name = "aoc-rs-2021"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
aoc-runner = "0.3.0"
aoc-runner-derive = "0.3.0"
itertools = "0.10.1"

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src/day_01.rs Normal file
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use aoc_runner_derive::{aoc, aoc_generator};
use itertools::Itertools;
#[aoc_generator(day1)]
pub fn parse_measurements(input: &str) -> Vec<usize> {
input
.split('\n')
.map(|input| input.parse().unwrap())
.collect()
}
#[aoc(day1, part1)]
pub fn count_increases_indexed(input: &[usize]) -> usize {
let mut count = 0;
for i in 1..input.len() {
if input[i - 1] < input[i] {
count += 1;
}
}
count
}
#[aoc(day1, part1, tuple_windows)]
pub fn count_increases_tuple_windows(input: &[usize]) -> usize {
let mut count = 0;
for (a, b) in input.iter().tuple_windows() {
if a < b {
count += 1;
}
}
count
}
#[aoc(day1, part2)]
pub fn count_sliding_increases_indexed(input: &[usize]) -> usize {
let mut count = 0;
for i in 3..input.len() {
if input[i - 3] + input[i - 2] + input[i - 1] < input[i - 2] + input[i - 1] + input[i] {
count += 1;
}
}
count
}
#[aoc(day1, part2, tuple_windows)]
pub fn count_sliding_increases_tuple_windows(input: &[usize]) -> usize {
let mut count = 0;
for (a, b, c, d) in input.iter().tuple_windows() {
if a + b + c < b + c + d {
count += 1;
}
}
count
}

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src/lib.rs Normal file
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use aoc_runner_derive::aoc_lib;
pub mod day_01;
aoc_lib! { year = 2021 }