Update lowest_common_ancestor.py

Author: MaximSmolskiy

data_structures/binary_tree/lowest_common_ancestor.py

@@ -115,7 +115,7 @@ def breadth_first_search(
     >>> level = [-1] * 2
     >>> parent = [[0] * 2 for _ in range(20)]
     >>> graph = {1: []}
-    >>> level, parent = breadth_first_search(level, parent, 1, graph, 1)
+    >>> level, parent = breadth_first_search(level=level, parent=parent, max_node=1, graph=graph, root=1)
     >>> level
     [-1, 0]
     >>> parent[0]