update populating-next-right-pointers-in-each-node.py

sangheestyle · sangheestyle · commit fe1bf89ecf89 · 2019-01-15T00:56:46.000+02:00
diff --git a/Python/populating-next-right-pointers-in-each-node.py b/Python/populating-next-right-pointers-in-each-node.py
@@ -20,7 +20,7 @@ class Solution(object):
     def connect(self, root):
         head = root
         while head:
-            prev, cur, next_head = None, head, None
+            cur = head
             while cur and cur.left:
                 cur.left.next = cur.right
                 if cur.next:
