Red-Black trees - Erasing a node with two non-leaf children

Posted by SalamiArmi on Stack Overflow See other posts from Stack Overflow or by SalamiArmi
Published on 2010-04-03T08:46:09Z Indexed on 2010/04/03 8:53 UTC
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algorithm

Hi all,

I've been implementing my own version of a red-black tree, mostly basing my algorithms from Wikipedia (http://en.wikipedia.org/wiki/Red-black_tree). Its fairly concise for the most part, but there's one part that I would like clarification on.

When erasing a node from the tree that has 2 non-leaf (non-NULL) children, it says to move either side's children into the deletable node, and remove that child.

I'm a little confused as to which side to remove from, based on that. Do I pick the side randomly, do I alternate betweek sides, or do I stick to the same side for every future deletion?

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