day06 part 1

src/day06.rs

@@ -0,0 +1,83 @@
+use crate::*;
+
+pub struct Day06;
+impl Day for Day06 {
+    const DAY_NUM: u8 = 6;
+    type Input = Scoreboard;
+    type Output = u64;
+
+    fn get_test_data() -> Self::Input {
+        "Time:      7  15   30
+Distance:  9  40  200"
+            .to_string()
+            .into()
+    }
+
+    fn get_test_result() -> Self::Output {
+        288
+    }
+
+    fn run(data: Self::Input) -> Self::Output {
+        dbg!(&data);
+        data.races
+            .iter()
+            .map(Race::get_amount_of_winning_accelarations)
+            .product()
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct Scoreboard {
+    races: Vec<Race>,
+}
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct Race {
+    duration: u64,
+    distance: u64,
+}
+impl Race {
+    fn get_amount_of_winning_accelarations(&self) -> <Day06 as Day>::Output {
+        if self.distance == 0 {
+            dbg!("This makes little sense");
+            return self.duration;
+        }
+        let mut result = 0;
+        for i in 0..self.duration {
+            let time_left = self.duration - i;
+            if i * time_left > self.distance{
+                result += 1;
+            }
+        }
+        result
+    }
+}
+
+impl From<String> for Scoreboard {
+    fn from(value: String) -> Self {
+        let mut lines = value.lines();
+        let durations = lines
+            .next()
+            .unwrap()
+            .trim()
+            .strip_prefix("Time:")
+            .unwrap()
+            .trim()
+            .split_ascii_whitespace();
+        let distances = lines
+            .next()
+            .unwrap()
+            .trim()
+            .strip_prefix("Distance:")
+            .unwrap()
+            .trim()
+            .split_ascii_whitespace();
+        let mut races = vec![];
+        for (duration, distance) in durations.zip(distances) {
+            let duration: u64 = duration.parse().unwrap();
+            let distance: u64 = distance.parse().unwrap();
+            races.push(Race { duration, distance });
+        }
+
+        Self { races }
+    }
+}

src/lib.rs

@@ -20,6 +20,8 @@ mod day04;
 pub use day04::*;
 mod day05;
 pub use day05::*;
+mod day06;
+pub use day06::*;
 
 pub mod utils {
     #[macro_export]

src/main.rs

@@ -6,7 +6,9 @@ fn main() {
     // Day03::run_all();
     // Day03::part1();
     // Day04::run_all();
-    Day05::part2();
+    // Day05::run_all();
+    // Day06::run_all();
+    Day06::part1();
 
     // utils::run!(01);
     // utils::run!(02);