refactor dijkstra

lib/dijkstra/src/lib.rs

@@ -23,7 +23,7 @@ impl<T> Debug for dyn Matrix<T> {
 }
 
 pub struct Dijkstra<'a, T> {
-    matrix: Box<&'a mut dyn Matrix<T>>,
+    matrix: &'a mut dyn Matrix<T>,
     unvisited_with_distance: HashSet<Coordinate>,
     unvisited_without_distance: HashSet<Coordinate>,
 }
@@ -40,9 +40,9 @@ impl<'a, T> Dijkstra<'a, T>
 where
     T: PartialOrd + Add<Output = T> + Display + Copy + Debug,
 {
-    pub fn new(matrix: Box<&'a mut dyn Matrix<T>>) -> Self {
+    pub fn new(matrix: &'a mut dyn Matrix<T>) -> Self {
         let unvisited_with_distance = HashSet::new();
-        let unvisited_without_distance = Self::initialize_unvisited_set(*matrix, START);
+        let unvisited_without_distance = Self::initialize_unvisited_set(&*matrix, START);
         Self {
             matrix,
             unvisited_with_distance,