Update merge-two-binary-trees.py

nth-attempt · web-flow · commit c5e598a3bdc2 · 2017-07-18T17:57:25.000-07:00
Added self for recursive calls
diff --git a/Python/merge-two-binary-trees.py b/Python/merge-two-binary-trees.py
@@ -48,6 +48,6 @@ def mergeTrees(self, t1, t2):
         if t2 is None:
             return t1
         t1.val += t2.val
-        t1.left = mergeTrees(t1.left, t2.left)
-        t1.right = mergeTrees(t1.right, t2.right)
+        t1.left = self.mergeTrees(t1.left, t2.left)
+        t1.right = self.mergeTrees(t1.right, t2.right)
         return t1
