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Randomized meldable heap : ウィキペディア英語版 | Randomized meldable heap In computer science, a randomized meldable heap (also Meldable Heap or Randomized Meldable Priority Queue) is a priority queue based data structure in which the underlying structure is also a heap-ordered binary tree. However, there are no restrictions on the shape of the underlying binary tree. This approach has a number of advantages over similar data structures. It offers greater simplicity: all operations for the randomized meldable heap are easy to implement and the constant factors in their complexity bounds are small. There is also no need to preserve balance conditions and no satellite information within the nodes is necessary. Lastly, this structure has good worst-case time efficiency. The execution time of each individual operation is at most logarithmic with high probability.〔A. Gambin and A. Malinowski. 1998. Randomized Meldable Priority Queues. In Proceedings of the 25th Conference on Current Trends in Theory and Practice of Informatics: Theory and Practice of Informatics (SOFSEM '98), Branislav Rovan (Ed.). Springer-Verlag, London, UK, UK, 344-349.〕 ==Operations== The randomized meldable heap supports a number of common operations. These are insertion, deletion, and a searching operation, findMin. The insertion and deletion operations are implemented in terms of an additional operation specific to the meldable heap, Meld(Q1, Q2).
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Randomized meldable heap」の詳細全文を読む
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