6.1 and 6.2 correct.

Author: jfgoog

aoc05/src/main.rs

@@ -1,5 +1,3 @@
-use std::cmp::Ordering;
-
 use util::input_lines;
 
 #[derive(Debug, Clone)]

aoc06/Cargo.toml

@@ -6,3 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+util = { path = "../util" }

aoc06/src/main.rs

@@ -1,3 +1,73 @@
+use util::input_lines;
+
+#[derive(Debug)]
+struct Race {
+    time: u64,
+    distance: u64,
+}
+
+impl Race {
+    fn ways_to_beat_record(&self) -> u64 {
+        let mut ways = 0;
+        for press in 0..=self.time {
+            if (self.time - press) * press > self.distance {
+                ways += 1;
+            }
+        }
+        ways
+    }
+}
+
 fn main() {
-    println!("Hello, world!");
+    let lines = input_lines();
+    let races = lines[0]
+        .split_once(":")
+        .unwrap()
+        .1
+        .trim()
+        .split_whitespace()
+        .map(|x| x.parse().unwrap())
+        .zip(
+            lines[1]
+                .split_once(":")
+                .unwrap()
+                .1
+                .trim()
+                .split_whitespace()
+                .map(|x| x.parse().unwrap()),
+        )
+        .map(|(time, distance)| Race { time, distance })
+        .collect::<Vec<_>>();
+    // println!("{:?}", races);
+    let mut product_of_ways = 1;
+    for race in &races {
+        product_of_ways *= race.ways_to_beat_record();
+        // println!("{:?} {}", race, race.ways_to_beat_record());
+    }
+    println!("Part 1: {}", product_of_ways);
+
+    let race = Race {
+        time: lines[0]
+            .split_once(":")
+            .unwrap()
+            .1
+            .trim()
+            .split_whitespace()
+            .collect::<Vec<_>>()
+            .join("")
+            .parse()
+            .unwrap(),
+        distance: lines[1]
+            .split_once(":")
+            .unwrap()
+            .1
+            .trim()
+            .split_whitespace()
+            .collect::<Vec<_>>()
+            .join("")
+            .parse()
+            .unwrap(),
+    };
+    // println!("{:?}", race);
+    println!("Part 2: {}", race.ways_to_beat_record());
 }