BLOCKSUM is NP-Complete

被引:7
作者
Haraguchi, Kazuya [1 ]
Ono, Hirotaka [2 ]
机构
[1] Ishinomaki Senshu Univ, Fac Sci & Engn, Dept Informat Technol & Elect, Ishinomaki, Miyagi 9868580, Japan
[2] Kyushu Univ, Fac Econ, Dept Econ Engn, Fukuoka 8128581, Japan
关键词
NP-completeness; combinatorial puzzle; Latin square; BLOCKSUM;
D O I
10.1587/transinf.E96.D.481
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
BLOCKSUM, also known as KEISANBLOCK in Japanese, is a Latin square filling type puzzle, such as Sudoku. In this paper, we prove that the decision problem whether a given instance of BLOCKSUM has a solution or not is NP-complete.
引用
收藏
页码:481 / 488
页数:8
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