Update binary-tree-vertical-order-traversal.py

kamyu104 · kamyu104 · commit ea2590c62e9b · 2015-12-05T16:31:33.000+08:00
diff --git a/Python/binary-tree-vertical-order-traversal.py b/Python/binary-tree-vertical-order-traversal.py
@@ -36,7 +36,7 @@ def verticalOrder(self, root):
 
         res = []
         for i in xrange(min_idx, max_idx + 1):
-            if lookup[i]:
-                res.append(lookup[i])
+            res.append(lookup[i])
+
         return res
             
