Day 6 Complete :) Super easy day!

src/solutions/day06.rs

@@ -5,16 +5,42 @@ pub struct Day06 {}
 impl Solution for Day06 {
     fn part1(
         &self,
-        _input: &mut Vec<String>,
+        input: &mut Vec<String>,
     ) -> Result<Box<dyn std::fmt::Display + Sync>, Box<dyn std::error::Error>> {
-        Ok(Box::new("Ready"))
+        let times: Vec<u64> = input[0]
+            .split_whitespace()
+            .skip(1)
+            .map(|t| t.parse().unwrap())
+            .collect();
+
+        let distances: Vec<u64> = input[1]
+            .split_whitespace()
+            .skip(1)
+            .map(|d| d.parse().unwrap())
+            .collect();
+
+        Ok(Box::new(self.num_winning_races(&times, &distances)?))
     }
 
     fn part2(
         &self,
-        _input: &mut Vec<String>,
+        input: &mut Vec<String>,
     ) -> Result<Box<dyn std::fmt::Display + Sync>, Box<dyn std::error::Error>> {
-        Ok(Box::new("Ready"))
+        let times = vec![input[0]
+            .split(":")
+            .nth(1)
+            .unwrap()
+            .replace(" ", "")
+            .parse::<u64>()?];
+
+        let distances = vec![input[1]
+            .split(":")
+            .nth(1)
+            .unwrap()
+            .replace(" ", "")
+            .parse::<u64>()?];
+
+        Ok(Box::new(self.num_winning_races(&times, &distances)?))
     }
 
     fn get_day(&self) -> u8 {
@@ -22,7 +48,27 @@ impl Solution for Day06 {
     }
 }
 
-impl Day06 {}
+impl Day06 {
+    fn num_winning_races(
+        &self,
+        times: &Vec<u64>,
+        distances: &Vec<u64>,
+    ) -> Result<u32, Box<dyn std::error::Error>> {
+        let mut beats = vec![];
+        for (time, record) in times.iter().zip(distances.iter()) {
+            let mut count: u32 = 0;
+            for hold in 0..*time {
+                let dist = (hold) * (time - hold);
+                if dist > *record {
+                    count += 1;
+                }
+            }
+            beats.push(count);
+        }
+
+        Ok(beats.iter().fold(1, |acc, &b| acc * b))
+    }
+}
 
 /// Test from puzzle input
 #[cfg(test)]
@@ -44,7 +90,7 @@ mod test {
             .unwrap()
             .to_string();
 
-        assert_eq!(answer, "Ready");
+        assert_eq!(answer, "288");
     }
 
     #[test]
@@ -61,6 +107,6 @@ mod test {
             .unwrap()
             .to_string();
 
-        assert_eq!(answer, "Ready");
+        assert_eq!(answer, "71503");
     }
 }