feat(ds): implement ‹From› and ‹FromIterator›

Signed-off-by: Matej Focko <me@mfocko.xyz>

src/data_structures/min_heap.rs

@@ -26,3 +26,25 @@ impl<T: Ord> Default for MinHeap<T> {
         Self::new()
     }
 }
+
+impl<T, const N: usize> From<[T; N]> for MinHeap<T>
+where
+    T: Ord,
+{
+    fn from(value: [T; N]) -> Self {
+        Self {
+            heap: BinaryHeap::from(value.map(|x| Reverse(x))),
+        }
+    }
+}
+
+impl<T: Ord> FromIterator<T> for MinHeap<T>
+where
+    T: Ord,
+{
+    fn from_iter<U: IntoIterator<Item = T>>(iter: U) -> Self {
+        Self {
+            heap: BinaryHeap::from_iter(iter.into_iter().map(|x| Reverse(x))),
+        }
+    }
+}