作者
Amr Elmasry
发表日期
2010/7/19
图书
International Computing and Combinatorics Conference
页码范围
479-488
出版商
Springer Berlin Heidelberg
简介
We give a priority queue that achieves the same amortized bounds as Fibonacci heaps. Namely, find-min requires O(1) worst-case time, insert, meld and decrease-key require O(1) amortized time, and delete-min requires O(logn) amortized time. Our structure is simple and promises an efficient practical behavior when compared to other known Fibonacci-like heaps. The main idea behind our construction is to propagate rank updates instead of performing cascaded cuts following a decrease-key operation, allowing for a relaxed structure.
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