clippy fixes

clippy fixes #2

clippy fixed #3

removed unnecessary stuff

src/tasks/day13.rs

@@ -24,23 +24,21 @@ fn read_input() -> (Vec<Vec<char>>, Vec<Cart>) {
         for (x, c) in line.chars().enumerate() {
             if tiles.contains(&c) {
                 map[x][y] = c;
-            } else {
-                if c != ' ' {
-                    map[x][y] = match c {
-                        '>' => '-',
-                        '<' => '-',
-                        '^' => '-',
-                        'v' => '-',
-                        _ => panic!("{} is invalid input char at this point", c),
-                    };
-                    carts.push(Cart {
-                        x,
-                        y,
-                        direction: c,
-                        intersections_visited: 0,
-                        active: true,
-                    });
-                }
+            } else if c != ' ' {
+                map[x][y] = match c {
+                    '>' => '-',
+                    '<' => '-',
+                    '^' => '-',
+                    'v' => '-',
+                    _ => panic!("{} is invalid input char at this point", c),
+                };
+                carts.push(Cart {
+                    x,
+                    y,
+                    direction: c,
+                    intersections_visited: 0,
+                    active: true,
+                });
             }
         }
     }
@@ -57,7 +55,7 @@ struct Cart {
     active: bool,
 }
 
-fn perform_round(map: &Vec<Vec<char>>, carts: &mut Vec<Cart>) {
+fn perform_round(map: &[Vec<char>], carts: &mut Vec<Cart>) {
     carts.sort_unstable_by(|a, b| {
         if a.y == b.y {
             a.x.cmp(&b.x)