Small changes.

2016/01/src/main.rs

@@ -19,7 +19,7 @@ fn main() {
 
 fn follow_instructions(input: &str) -> (Option<(i32, i32)>, Option<(i32, i32)>) {
     let instructions = input
-        .split(",")
+        .split(',')
         .map(|x| x.trim())
         .map(|x| x.split_at(1))
         .map(|(x, y)| (x, y.parse::<i32>().unwrap()));
@@ -36,7 +36,7 @@ fn follow_instructions(input: &str) -> (Option<(i32, i32)>, Option<(i32, i32)>)
         delta = match direction {
             "R" => (delta.1, delta.0 * -1),
             "L" => (delta.1 * -1, delta.0),
-            _   => delta,
+            _   => unreachable!(),
         };
 
         for _ in 0..steps {

2016/03/src/main.rs

@@ -22,28 +22,27 @@ fn main() {
 
     let count_v = input
         .chunks(3)
-        .flat_map(|x| {
+        .flat_map(|rows| {
-            x[0]
+            rows[0].iter()
-                .iter()
+                .zip(&rows[1])
-                .zip(&x[1])
+                .zip(&rows[2])
-                .zip(&x[2])
                 .map(|((x, y), z)| [x, y, z])
         })
         .filter(|x| is_triangle(*x[0], *x[1], *x[2]))
         .count();
 
-    println!("count={}", count_h);
+    println!("count_h={}", count_h);
-    println!("count={}", count_v);
+    println!("count_v={}", count_v);
 }
 
-fn is_triangle(a: i32, b: i32, c: i32) -> bool {
+pub fn is_triangle(a: i32, b: i32, c: i32) -> bool {
     a + b > c && b + c > a && c + a > b
 }
 
 
 #[cfg(test)]
 mod tests {
-    use super::is_triangle;
+    use super::*;
 
     #[test]
     fn example_01() {