Optimal reconfiguration of optimal ladder lotteries
نویسندگان
چکیده
A ladder lottery, known as “Amidakuji” in Japan, is a common way to decide an assignment at random. lottery L of given permutation optimal if has the minimum number horizontal lines. In this paper, we investigate reconfiguration problem lotteries. The on set lotteries asks, two L,L? ?, find sequence ?L1,L2,…,Lk? ? such that (1) L1=L and Lk=L? (2) Li for i=2,3,…,k obtained from Li?1 by moving bar locally. An existing result implies any have length O(n3), where n elements ?. characterize sequences between Moreover, present linear-time algorithm computes length.
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ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 2021
ISSN: ['1879-2294', '0304-3975']
DOI: https://doi.org/10.1016/j.tcs.2021.01.009