Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Sizes of Optimal q-Ary Codes of Weight Three and Distance Four: A
  Complete Solution   This correspondence introduces two new constructive techniques to complete
the determination of the sizes of optimal q-ary codes of constant weight three
and distance four.

25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph