Day 1

src/day1.rs

@@ -1,5 +1,15 @@
 
 
 pub fn run(input: &str) {
-
+    let step_list = input.lines()
+        .map(|l| l.replace("L", "").replace("R", "-").parse::<i32>().unwrap());
+    let counted = step_list.scan(50, |dial, steps| {
+        let at_0 = (*dial..(*dial + steps))
+            .chain((*dial + steps + 1)..=*dial)
+            .filter(|num| *num % 100 == 0).count();
+        *dial += steps;
+        Some((*dial % 100 == 0, at_0))
+    });
+    println!("Part 1: {}", counted.clone().filter(|(is_0, _)| *is_0).count());
+    println!("Part 2: {}", counted.fold(0, |acc, num| acc + num.1));
 }

src/main.rs

@@ -5,7 +5,7 @@ mod day1;
 
 const CHOICES: [&str; 2] = [
     "Exit",
-    "Day 1: ",
+    "Day 1: Secret Entrance",
 ];
 
 fn main() {