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arXiv 2207.04474cs.CG
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Opposing Half Guards

Erik Krohn, Bengt J. Nilsson, Christiane Schmidt

英文摘要:

We study the art gallery problem for opposing half guards: guards that can either see to their left or to their right only. We present art gallery theorems, show that the location of half guards in 2-guardable polygons is not restricted to extensions, show that the problem is NP-hard in monotone polygons, and present approximation algorithms for spiral and staircase polygons.

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