dan/advent-of-code
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Adding gitignore updates, changing around day4 to add directional based handling.

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calcu1on 2025-03-30 12:56:36 -04:00
parent 1aa91374c7
commit 4bda1f89ef
2 changed files with 27 additions and 10 deletions
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2
.gitignore vendored
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@ -1,3 +1,5 @@
/target /target
2016/twenty16/target 2016/twenty16/target
2024/rust/target 2024/rust/target
2023/rust/target
*/target

35
2024/rust/src/day4.rs
View File

@ -2,17 +2,32 @@ use crate::Solution;
use std::fs; use std::fs;
use std::process; use std::process;
struct Direction {
x: i32,
y: i32,
}
pub fn run_day_4() -> Solution { pub fn run_day_4() -> Solution {
let file = fs::read_to_string("./inputs/day4test.txt").expect("Unable to parse file"); let file = fs::read_to_string("./inputs/day4test.txt").expect("Unable to parse file");
let search_map = build_search_map(&file); let search_map = build_search_map(&file);
// @here you are Dan let directions: Vec<(i32, i32)> = vec![
// this is now creating a vector which you can iterator over (0,1), // N
// will need to work out logic to go through each letter (0,-1), // S
// and detect if it is part of a match or now (1,0), // E
// somehow keeping track of past matches (-1,0), // W
// need to do in all directions and backwards (1,1), // NE
// this is...complicated. (-1,1), // NW
dbg!(search_map[0][2]); (1,-1), // SE
(-1,-1), // SW
];
// idea 3.0
// iterate over each letter in the word search
// for each letter, build all possible words around it
// we know the character length is 4 (XMAS, SAMX)
// so if we have a given point, i.e. (3,4)
dbg!(directions[0].0);
// Return the solution // Return the solution
let solution = Solution { let solution = Solution {
@ -23,6 +38,7 @@ pub fn run_day_4() -> Solution {
solution solution
} }
// Builds a searchable map.
fn build_search_map(row: &str) -> Vec<Vec<char>> { fn build_search_map(row: &str) -> Vec<Vec<char>> {
let mut search_map: Vec<Vec<char>> = vec!(); let mut search_map: Vec<Vec<char>> = vec!();
for line in row.lines() { for line in row.lines() {
@ -32,8 +48,7 @@ fn build_search_map(row: &str) -> Vec<Vec<char>> {
search_map search_map
} }
// converts a line into a vectory of chars
fn line_to_chars(row_line: &str) -> Vec<char> { fn line_to_chars(row_line: &str) -> Vec<char> {
row_line.chars().collect() row_line.chars().collect()
} }