Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Area-Optimal Simple Polygonalizations: The CG Challenge 2019   We give an overview of theoretical and practical aspects of finding a simple
polygon of minimum (Min-Area) or maximum (Max-Area) possible area for a given
set of n points in the plane. Both problems are known to be NP-hard and were
the subject of the 2019 Computational Geometry Challenge, which presented the
quest of finding good solutions to more than 200 instances, ranging from n = 10
all the way to n = 1, 000, 000.

18
The categories of this paper are: econ
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci