Improved task 133

Author: javadev

src/main/kotlin/g0101_0200/s0133_clone_graph/Solution.kt

@@ -5,6 +5,12 @@ package g0101_0200.s0133_clone_graph
 
 import com_github_leetcode.Node
 
+/*
+ * Definition for a Node.
+ * class Node(var `val`: Int) {
+ *     var neighbors: ArrayList<Node?> = ArrayList<Node?>()
+ * }
+ */
 class Solution {
     fun cloneGraph(node: Node?): Node? {
         return cloneGraph(node, HashMap())