Reverse Bredth First Search in C#

Posted by Ngu Soon Hui on Stack Overflow See other posts from Stack Overflow or by Ngu Soon Hui
Published on 2010-04-05T14:40:30Z Indexed on 2010/04/05 14:53 UTC
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Anyone has a ready implementation of the Reverse Bredth First Search algorithm in C#?

By Reverse Bredth First Search, I mean instead of searching a tree starting from a common node, I want to search the tree from the bottom and gradually converged to a common node.

Let's see the below figure, this is the output of a Bredth First Search: alt text

In my reverse bredth first search, 9,10,11 and 12 will be the first few nodes found ( the order of them are not important as they are all first order). 5, 6, 7 and 8 are the second few nodes found, and so on. 1 would be the last node found.

Any ideas or pointers?

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