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day 1 (working but incorrect??)

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ari melody 2023-12-02 13:36:50 +00:00
parent f374eceb32
commit 8b177dfcce
Signed by: ari
GPG key ID: CF99829C92678188
1 changed files with 11 additions and 16 deletions
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27
day1-trebuchet/src/main.rs
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@ -2,24 +2,19 @@ fn main () {
let data: String = std::fs::read_to_string("input").unwrap();
let lines = data.lines();
let new_lines = lines
.map(|raw_line| replace_numbers(raw_line))
.fold(String::new(), |a, b| format!("{a}{b}\n"));
std::fs::write("new_lines", new_lines);
// let sum: u32 = lines.map(|line| { get_calibration_values(line) }).sum();
// println!("the sum of all calibration values is {sum}!");
let sum: u32 = lines.map(|line| { get_calibration_values(line) }).sum();
println!("the sum of all calibration values is {sum}!");
}
fn replace_numbers(raw_line: &str) -> String {
fn replace_numbers<'a>(line: &str) -> String {
let numbers: [&str; 10] = ["zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"];
let mut line: String = raw_line.to_string();
let mut processed: String = String::from(line);
loop {
let mut clean = false;
for i in 0..numbers.len() {
let old_line = line.clone();
line = line.replace(numbers[i], i.to_string().as_str());
if line.eq(&old_line) {
let old_line = processed.clone();
processed = processed.replace(numbers[i], i.to_string().as_str());
if processed == old_line {
clean = true;
}
}
@ -27,11 +22,11 @@ fn replace_numbers(raw_line: &str) -> String {
break;
}
}
line
processed
}
fn get_calibration_values(mut line: &str) -> u32 {
line = replace_numbers(line).clone().as_str();
fn get_calibration_values(raw_line: &str) -> u32 {
let line: String = replace_numbers(raw_line);
let first: u32 = line.chars().find_map(|ch| { ch.to_digit(10) }).unwrap();
let last: u32 = line.chars().rev().find_map(|ch| { ch.to_digit(10) }).unwrap();
@ -41,4 +36,4 @@ fn get_calibration_values(mut line: &str) -> u32 {
// first * 10 + last
result
}
}