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A treap with alphabetic key and numeric max heap order. The treap was first described by Raimund Seidel and Cecilia R. Aragon in 1989; [1] [2] its name is a portmanteau of tree and heap.
In computer science, a trie (/ ˈ t r aɪ /, / ˈ t r iː /), also known as a digital tree or prefix tree, [1] is a specialized search tree data structure used to store and retrieve strings from a dictionary or set.
Cartesian trees are defined using binary trees, which are a form of rooted tree.To construct the Cartesian tree for a given sequence of distinct numbers, set its root to be the minimum number in the sequence, [1] and recursively construct its left and right subtrees from the subsequences before and after this number, respectively.
Such a data structure is known as a treap or a randomized binary search tree. [11] Variants of the treap including the zip tree and zip-zip tree replace the tree rotations by "zipping" operations that split and merge trees, and that limit the number of random bits that need to be generated and stored alongside the keys.
Cecilia Rodriguez Aragon is an American computer scientist, professor, author, and champion aerobatic pilot [1] [2] who is best known as the co-inventor (with Raimund Seidel) of the treap data structure, a type of binary search tree that orders nodes by adding a priority as well as a key to each node. [3]
Treap or randomized binary search tree, a data structure that uses random choices to simulate a random binary tree for non-random update sequences Rapidly exploring random tree , a fractal space-filling pattern used as a data structure for searching high-dimensional spaces
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A medial- or length-oriented tree is similar to an augmented tree, but symmetrical, with the binary search tree ordered by the medial points of the intervals. There is a maximum-oriented binary heap in every node, ordered by the length of the interval (or half of the length).