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May 5, 2014 at 2:48 history edited John R. Strohm CC BY-SA 3.0
In 3rd paragraph, change "and then" to "and" to remove implication of preorder-only traverse. A tree node can be traversed in three fundamental ordersL preorder, inorder, postorder. "And then" strongly implies preorder.
May 4, 2014 at 21:10 vote accept Overly Excessive
May 4, 2014 at 15:38 history answered Bart van Ingen Schenau CC BY-SA 3.0