day23

aoc2024/src/day05.rs

@@ -1,9 +1,16 @@
+use std::collections::{HashMap, HashSet};
+
 use shared::{Solution, Answer};
 
 pub struct Day05;
 
 impl Solution for Day05 {
     fn part_1(&self, input: &str) -> Answer {
+        let (p1, p2) = parse(input);
+
+        // let res = p2.iter()
+        //     .filter(|&update| )
+        
         Answer::Unimplemented
     }
 
@@ -11,3 +18,21 @@ impl Solution for Day05 {
         Answer::Unimplemented
     }
 }
+
+fn parse(input: &str) -> (HashMap<u32, HashSet<u32>>, Vec<Vec<u32>>) {
+    let (first, second) = input.split_once("\n\n").unwrap();
+
+    let mut out1: HashMap::<u32, HashSet<u32>> = HashMap::new();
+
+    for (a, b) in first
+        .lines()
+        .map(|s| s.split_once("|")
+            .unwrap())
+        .map(|(a, b)| (a.parse::<u32>().unwrap(), b.parse::<u32>().unwrap())) {
+        out1.entry(a).or_default().insert(b);
+    };
+
+    let out2: Vec<Vec<u32>> = second.lines().map(|line| line.split(",").map(|x| x.parse::<u32>().unwrap()).collect()).collect();
+
+    (out1, out2)
+}