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  2. Wavelet Tree - Wikipedia

    en.wikipedia.org/wiki/Wavelet_Tree

    Several extensions to the basic structure have been presented in the literature. To reduce the height of the tree, multiary nodes can be used instead of binary. [2] The data structure can be made dynamic, supporting insertions and deletions at arbitrary points of the string; this feature enables the implementation of dynamic FM-indexes. [4]

  3. Binary tree - Wikipedia

    en.wikipedia.org/wiki/Binary_tree

    the empty set is an extended binary tree; if T 1 and T 2 are extended binary trees, then denote by T 1 • T 2 the extended binary tree obtained by adding a root r connected to the left to T 1 and to the right to T 2 [clarification needed where did the 'r' go in the 'T 1 • T 2 ' symbol] by adding edges when these sub-trees are non-empty.

  4. List of terms relating to algorithms and data structures

    en.wikipedia.org/wiki/List_of_terms_relating_to...

    binary search tree; binary tree; binary tree representation of trees; bingo sort; binomial heap; binomial tree; bin packing problem; bin sort; bintree; bipartite graph; bipartite matching; bisector; bitonic sort; bit vector; Bk tree; bdk tree (not to be confused with k-d-B-tree) [2] block; block addressing index; blocking flow; block search ...

  5. Binary expression tree - Wikipedia

    en.wikipedia.org/wiki/Binary_expression_tree

    Creating a one-node tree. Continuing, a '+' is read, and it merges the last two trees. Merging two trees. Now, a '*' is read. The last two tree pointers are popped and a new tree is formed with a '*' as the root. Forming a new tree with a root. Finally, the last symbol is read. The two trees are merged and a pointer to the final tree remains on ...

  6. Tree traversal - Wikipedia

    en.wikipedia.org/wiki/Tree_traversal

    To traverse arbitrary trees (not necessarily binary trees) with depth-first search, perform the following operations at each node: If the current node is empty then return. Visit the current node for pre-order traversal. For each i from 1 to the current node's number of subtrees − 1, or from the latter to the former for reverse traversal, do:

  7. Threaded binary tree - Wikipedia

    en.wikipedia.org/wiki/Threaded_binary_tree

    In computing, a threaded binary tree is a binary tree variant that facilitates traversal in a particular order. An entire binary search tree can be easily traversed in order of the main key, but given only a pointer to a node, finding the node which comes next may be slow or impossible. For example, leaf nodes by definition have no descendants ...

  8. Tree (abstract data type) - Wikipedia

    en.wikipedia.org/wiki/Tree_(abstract_data_type)

    This unsorted tree has non-unique values (e.g., the value 2 existing in different nodes, not in a single node only) and is non-binary (only up to two children nodes per parent node in a binary tree). The root node at the top (with the value 2 here), has no parent as it is the highest in the tree hierarchy.

  9. Binary heap - Wikipedia

    en.wikipedia.org/wiki/Binary_heap

    A binary heap is a heap data structure that takes the form of a binary tree. Binary heaps are a common way of implementing priority queues. [1]: 162–163 The binary heap was introduced by J. W. J. Williams in 1964 as a data structure for implementing heapsort. [2] A binary heap is defined as a binary tree with two additional constraints: [3]