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| -rw-r--r-- | source3/ubiqx/BinaryTrees.readme | 24 |
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diff --git a/source3/ubiqx/BinaryTrees.readme b/source3/ubiqx/BinaryTrees.readme new file mode 100644 index 0000000000..ec99a43d17 --- /dev/null +++ b/source3/ubiqx/BinaryTrees.readme @@ -0,0 +1,24 @@ +Short: Binary AVL & Splay trees non-recursive. +Uploader: crh@ubiqx.mn.org (Christopher R. Hertel) +Author: crh@ubiqx.mn.org (Christopher R. Hertel) +Type: dev/c +Version: 2.4. + +Written in C using OOP techniques, these modules provide three forms of +binary tree: Simple (unbalanced) AVL (height-balanced), and Splay. AVL +trees are re-balanced after every insertion or deletion. For each node in +the tree, the difference in height between the left and right subtree is +at most 1. Splay trees use a different approach. Each time a node is +accessed (inserted, deleted, or directly found via a search), the node is +bubbled to the top of the tree. This has the effect of making the tree +'bushier' and placing the most frequently accessed nodes nearer to the +top. + +The functions are non-recursive to limit stack space usage, and can also +be made into a run-time library. The type of tree used is determined by +which header file is included with your program. No other code changes +are necessary. + +Pretty darn fast, too, IMHO. + +Chris Hertel |