5 citations · 28 across the 25 of their papers we have counts for
7 papers · 1 filter
Characterizing Universal Reconfigurability of Modular Pivoting Robots
Hugo A. Akitaya, Erik D. Demaine, Andrei Gonczi +7
We give both efficient algorithms and hardness results for reconfiguring between two connected configurations of modules in the hexagonal grid. The reconfiguration moves that we co…
Arithmetic Expression Construction
Leo Alcock, Sualeh Asif, Jeffrey Bosboom +10
When can given numbers be combined using arithmetic operators from a given subset of to obtain a given target number? We study three variations of this pr…
Mad Science is Provably Hard: Puzzles in Hearthstone's Boomsday Lab are NP-hard
Michael Hoffmann, Jayson Lynch, Andrew Winslow
We consider the computational complexity of winning this turn (mate-in-1 or "finding lethal") in Hearthstone as well as several other single turn puzzle types introduced in the Boo…
Tetris is NP-hard even with rows or columns
Sualeh Asif, Michael Coulombe, Erik D. Demaine +4
We prove that the classic falling-block video game Tetris (both survival and board clearing) remains NP-complete even when restricted to 8 columns, or to 4 rows, settling open prob…
Negative Instance for the Edge Patrolling Beacon Problem
Zachary Abel, Hugo A. Akitaya, Erik D. Demaine +5
Can an infinite-strength magnetic beacon always ``catch'' an iron ball, when the beacon is a point required to be remain nonstrictly outside a polygon, and the ball is a point alwa…
Tatamibari is NP-complete
Aviv Adler, Jeffrey Bosboom, Erik D. Demaine +3
In the Nikoli pencil-and-paper game Tatamibari, a puzzle consists of an grid of cells, where each cell possibly contains a clue among +, -, |. The goal is to partition…