Black box for constant-time insertion in priority queues

Research output: Contribution to journalArticle


We present a simple black box that takes a priority queue Q which supports find-min, insert, and delete in x-time at most t. Here x-time may be worst-case, expected, or amortized. The black-box transforms Q into a priority queue Q* that supports find-min in constant time, insert in constant x-time, and delete in x-time O(t). Moreover, if Q supports dec-key in constant time, then so does Q*.


Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Computer Science
Original languageEnglish
Pages (from-to)102-106
JournalACM Transactions on Algorithms
Issue number1
Publication statusPublished - 2005
Publication categoryResearch