init day2

src/day2.rs

@@ -0,0 +1,65 @@
+pub fn run(lines: Vec<String>) {
+    let mut h1 = 0;
+    let mut d1 = 0;
+
+    let mut aim = 0;
+    let mut d2 = 0;
+    let mut h2 = 0;
+
+    for line in lines {
+        let parts = line.split(" ");
+        let command = parts.clone().nth(0).unwrap();
+        let num: i32 = parts.clone().nth(1).unwrap().parse().unwrap();
+        match command {
+            "forward" => {
+                h1 += num;
+                h2 += num;
+                d2 += aim * num;
+            },
+            "up" => {
+                d1 -= num;
+                aim -= num;
+            },
+            "down" => {
+                d1 += num;
+                aim += num;
+            },
+            _ => println!("unknown command: '{}'", command)
+        }
+    }
+    println!("{}, {}", h1 * d1, h2 * d2);
+}
+
+#[cfg(test)]
+mod part1 {
+    use super::*;
+
+    #[test]
+    fn run_sample() {
+        let input = include_str!("../inputs/2_test.txt");
+        assert_eq!(part_1_solution(input), 150);
+    }
+
+    #[test]
+    fn run() {
+        let input = include_str!("../inputs/2.txt");
+        assert_eq!(part_1_solution(input), 1660158);
+    }
+}
+
+#[cfg(test)]
+mod part2 {
+    use super::*;
+
+    #[test]
+    fn run_sample() {
+        let input = include_str!("../inputs/2_test.txt");
+        assert_eq!(part_2_solution(input), 900);
+    }
+
+    #[test]
+    fn run() {
+        let input = include_str!("../inputs/2.txt");
+        assert_eq!(part_2_solution(input), 1604592846);
+    }
+}