bearophileh...@lycos.com writes:
> Aahz:
>> When have you ever had a binary tree a thousand levels deep?
>
> Yesterday.
>
>
>>Consider how big 2**1000 is...<
>
> You are thinking just about complete binary trees.
> But consider that a topology like a single linked list (every node has
> 1 child, and they are chained) is a true binary tree still.
In that case the following would not grow the stack, given tail-call
optimization:
def visit(node):
print 'visiting', node
if node.right is None:
return visit(node.left)
if node.left is not None:
visit(node.left)
return visit(node.right)
--
Arnaud
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