The Permutational Power of a Priority Queue
نویسندگان
چکیده
A priority queue transforms an input permutation cr of some set of size n into an output permutation z. It is shown that the number of such pairs (a, z) is (n + 1)"1 Some related enumerative and algorithmic questions are also considered.
منابع مشابه
Priority Queue Sorting and Labeled Trees
The priority queue discussed in this talk is an abstract data type supporting theoperations INSERT and DELETEMIN, which transforms an input permutation σ oflength n to an output permutation τ . Atkinson and Thiyagarajah [2] proved that suchpairs (σ, τ) are counted by (n + 1)n−1. This is also well known as Cayley’s formulain graph theory, which counts the number of labeled trees ...
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ورودعنوان ژورنال:
- BIT
دوره 33 شماره
صفحات -
تاریخ انتشار 1993