The Basis of Foot-Sortable Sock Orderings

Fuente: arXiv
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Main Authors: Molla, Theodore, Nelson, Corey
Format: Preprint
Published: 2024
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author Molla, Theodore
Nelson, Corey
author_facet Molla, Theodore
Nelson, Corey
contents Defant and Kravitz considered the following problem: Suppose that, to the right of a foot, there is a line of colored socks that needs to be sorted. However, at any point in time, one can only either place the leftmost sock to the right of the foot onto the foot (stack) or remove the outermost sock on the foot and make it the rightmost sock to the left of the foot (unstack). In this paper, we explicitly describe all minimal initial sock orderings that are unsortable.
format Preprint
id arxiv_https___arxiv_org_abs_2408_13938
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Basis of Foot-Sortable Sock Orderings
Molla, Theodore
Nelson, Corey
Combinatorics
Defant and Kravitz considered the following problem: Suppose that, to the right of a foot, there is a line of colored socks that needs to be sorted. However, at any point in time, one can only either place the leftmost sock to the right of the foot onto the foot (stack) or remove the outermost sock on the foot and make it the rightmost sock to the left of the foot (unstack). In this paper, we explicitly describe all minimal initial sock orderings that are unsortable.
title The Basis of Foot-Sortable Sock Orderings
topic Combinatorics
url https://arxiv.org/abs/2408.13938