An FPT algorithm for orthogonal buttons and scissors

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Abstract

We study the puzzle game Buttons and Scissors in which the goal is to remove all buttons from an n×m grid by a series of horizontal and vertical cuts. We show that the corresponding decision problem has an algorithm with time complexity 2O(k2log⁡k)+(n+m)O(1), where k is an upper bound on the number of cuts.

Original languageEnglish
Article number105997
Number of pages7
JournalInformation Processing Letters
Volume163
DOIs
StatePublished - 1 Nov 2020

Keywords

  • Algorithms
  • Keywords Combinatorial puzzles
  • Parameterized complexity
  • Reduction rules

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