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structix
2023-12-01 15:15:26 +01:00
parent 40cd128738
commit 5ec3b2d3b9
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2023/day1/day1/.gitignore vendored Normal file
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/target

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2023/day1/day1/Cargo.toml Normal file
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[package]
name = "day1"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
pest = "2.7.5"
pest_derive = "2.7.5"

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2023/day1/day1/inputTest.txt Normal file
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two1nine
eightwothree
abcone2threexyz
xtwone3four
4nineeightseven2
azoneight234
7pqrstsixteen
four2threen2mpcqmfourrspvlbeighttwobb
two28tnkxzldhfour6tbtctxsjone
six11eightoneeightklv

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2023/day1/day1/src/coordinate.pest Normal file
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field = { ASCII_DIGIT | "one" | "two" | "three" | "four" | "five" | "six" | "seven" | "eight" | "nine" }
CLUTTER = _{ !field ~ ASCII_ALPHA }
record = { ((CLUTTER)* ~ field ~ (CLUTTER)*)+ }
file = { SOI ~ (record ~ ("\r\n" | "\n"))* ~ EOI }

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2023/day1/day1/src/main.rs Normal file
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use std::collections::HashMap;
use pest::Parser;
use pest_derive::Parser;
#[derive(Parser)]
#[grammar = "coordinate.pest"]
pub struct CoordinateParser;
fn main() {
let file = std::fs::read_to_string("./input.txt").expect("Can't read file.");
let file_parser = CoordinateParser::parse(Rule::file, &file)
.expect("Can't be parsed")
.next()
.unwrap();
let mut coordinate_sum = 0;
let number_tuples = vec![
("one", 1),
("two", 2),
("three", 3),
("four", 4),
("five", 5),
("six", 6),
("seven", 7),
("eight", 8),
("nine", 9),
];
let number_map: HashMap<&str, u32> = number_tuples.into_iter().collect();
for record in file_parser.into_inner() {
match record.as_rule() {
Rule::record => {
let mut numbers: Vec<u32> = vec![];
println!("{}", &record.as_str());
for field in record.into_inner() {
let number_or_string = field.as_str().parse::<u32>();
match number_or_string {
Ok(val) => {
print!("{}, ", val);
numbers.push(val);
}
Err(_) => {
// Parse from string
let val = number_map.get(field.as_str());
print!("{}, ", val.unwrap().to_owned());
numbers.push(val.unwrap().to_owned());
}
}
}
if numbers.len() == 1 {
coordinate_sum += numbers.first().unwrap();
println!("plus {}", numbers.first().unwrap());
} else {
let sum = numbers.first().unwrap() * 10 + numbers.last().unwrap();
coordinate_sum += sum;
println!("plus {}", sum);
}
}
Rule::EOI => (),
_ => unreachable!(),
}
}
println!("Sum of coordinates: {}", coordinate_sum);
}