Create Count Good Nodes in Binary Tree

Added Create Count Good Nodes in Binary Tree in java

Author: abhaykumar10773

src/main/java/com/thealgorithms/datastructures/trees/Create Count Good Nodes in Binary Tree

@@ -0,0 +1,17 @@
+class Solution {
+
+    public int goodNodes(TreeNode root) {
+        return helper(root, -99999);
+    }
+
+    public int helper(TreeNode root, int max) {
+        if (root == null) return 0;
+
+        int res = root.val >= max ? 1 : 0;
+
+        res += helper(root.left, Math.max(root.val, max));
+        res += helper(root.right, Math.max(root.val, max));
+
+        return res;
+    }
+}