(L, U): bounded priority queues and the codification of Rényi k-Trees

Abstract

We introduce in this paper a data structure named (L, U)- bounded priority queue, which particularizes priority queues in two aspects: the priorities associated to the elements must be integer numbers constrained to a predefined interval and, in a sequence of operations, no more than one Insert can immediatly follow a DeleteMin. This data structure is used in the development of efficient algorithms for coding and decoding Rényi k-trees.