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An FPT algorithm for orthogonal buttons and scissors
Dekel Tsur · 2019-07-24 · via cs.DS updates on arXiv.org

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