aylac.top
+12
-6
2025/7/rust/src/main.rs
+12
-6
2025/7/rust/src/main.rs
···
1
1
use std::{
2
2
char,
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3
collections::{HashMap, HashSet},
4
+
mem::swap,
4
5
};
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6
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7
fn main() {
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-
let input = include_str!("../../input_example.txt").trim();
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+
let input = include_str!("../../input.txt").trim();
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let mut input: Vec<&str> = input.trim().split("\n").collect();
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let start = input[0].find("S").unwrap() as u32;
···
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let timelines = {
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let mut timelines: HashMap<String, u32> = HashMap::new();
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timelines.insert("".to_string(), start);
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-
for splitters in splitters_map {
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-
for (timeline, pos) in timelines.clone() {
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+
let mut timelines_new: HashMap<String, u32> = HashMap::new();
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+
for (i, splitters) in splitters_map.iter().enumerate() {
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+
println!("at: {}", i);
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for (timeline, pos) in &timelines {
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if splitters.contains(&pos) {
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-
timelines.remove(&timeline);
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timelines.insert(format!("{timeline}+"), pos + 1);
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-
timelines.insert(format!("{timeline}-"), pos - 1);
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timelines_new.insert(format!("{timeline}+"), pos + 1);
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timelines_new.insert(format!("{timeline}-"), pos - 1);
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+
} else {
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+
timelines_new.insert(format!("{timeline}|"), *pos);
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}
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}
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swap(&mut timelines, &mut timelines_new);
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+
timelines_new.clear();
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}
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timelines
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47
};