This commit is contained in:
Julius 2021-12-01 17:07:17 +01:00
commit 19d34d9263
Signed by: j00lz
GPG key ID: AF241B0AA237BBA2
7 changed files with 2321 additions and 0 deletions

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/target
.idea/

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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
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[package]
name = "aoc2021"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
clap = "2.34.0"
chrono = "0.4.19"

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pub trait Day {
fn init(content: String) -> Self where Self: Sized;
fn part1(&self) -> String;
fn part2(&self) -> String;
}

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src/day1.rs Normal file
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use std::fs::read_to_string;
#[derive(Eq, PartialEq, Ord, PartialOrd, Clone)]
pub struct Day1(Vec<i32>);
impl crate::day::Day for Day1 {
fn init(f: String) -> Self {
let v = f.split('\n').map(|x| x.parse::<i32>().unwrap()).collect::<Vec<i32>>();
Self(v)
}
fn part1(&self) -> String {
let (a, _) = self.0.iter().fold((0, -1), increments);
format!("{}", a)
}
fn part2(&self) -> String {
let ws = self.0.windows(3).map(|a| a.iter().fold(0, std::ops::Add::add)).collect::<Vec<i32>>();
let (a, _) = ws.iter().fold((0, -1), increments);
format!("{}", a)
}
}
fn increments((a, b): (i32, i32), c: &i32) -> (i32, i32) {
let c = *c;
if b == -1 {
(a, c)
} else if c > b {
(a + 1, c)
} else {
(a, c)
}
}
#[cfg(test)]
pub mod tests {
use std::fs::read_to_string;
use super::Day1;
use crate::day::Day;
#[test]
pub fn part1_real() {
let f = read_to_string("./input/day1").expect("Could not load input");
let d = Day1::init(f);
assert_eq!("1466", d.part1())
}
#[test]
pub fn part2_real() {
let f = read_to_string("./input/day1").expect("Could not load input");
let d = Day1::init(f);
assert_eq!("1491", d.part2())
}
#[test]
pub fn part1_test() {
let v = vec![199, 200, 208, 210, 200, 207, 240, 269, 260, 263];
let strs = v.iter().map(i32::to_string).collect::<Vec<String>>().join("\n");
let d = Day1::init(strs);
assert_eq!("7", d.part1())
}
#[test]
pub fn part2_test() {
let v = vec![199, 200, 208, 210, 200, 207, 240, 269, 260, 263];
let strs = v.iter().map(i32::to_string).collect::<Vec<String>>().join("\n");
let d = Day1::init(strs);
assert_eq!("5", d.part2())
}
}

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use std::fs::read_to_string;
use std::time::SystemTime;
use chrono::Datelike;
use clap::{App, Arg, SubCommand};
use crate::day1::Day1;
use crate::day::Day;
mod day;
mod day1;
fn load_input(day: &str) -> String {
read_to_string(format!("./input/day{}", day)).expect("Could not load input")
}
fn run_day(days: &Vec<Box<dyn Day>>, day: usize) {
if let Some(d) = days.get(day - 1) {
let day_code = d.clone();
println!("Running day {}!", day);
println!("\tPart 1: {}", d.part1());
println!("\tPart 2: {}", day_code.part2());
} else {
eprintln!("Day {} is not available!", day);
}
}
fn main() {
let matches = App::new("AOC Time!")
.version("1.0")
.author("J00LZ")
.about("How to overengineer AOC in a single program...")
.arg(Arg::with_name("v")
.short("v")
.multiple(true)
.help("Sets the level of verbosity"))
.arg(Arg::with_name("all")
.short("a")
.long("all")
.help("run all available days"))
.arg(Arg::with_name("DAY")
.takes_value(true)
.multiple(true))
.get_matches();
let days: Vec<Box<dyn Day>> = vec![Box::new(Day1::init(load_input("1")))];
let verbosity = matches.occurrences_of("v");
if matches.is_present("all") {
let l = days.len();
println!("running {} days!", l);
for v in 1..l + 1 {
run_day(&days, v);
}
} else if let Some(d) = matches.values_of("DAY") {
let d = d.map(|x| x.parse::<i32>().expect("Did not provide an int!"));
for v in d {
run_day(&days, v as usize);
}
} else {
let v = chrono::Local::now().day();
run_day(&days, v as usize)
}
}