This a program to implement the so-called \"dancing link\" which is introduced in Knuth s paper. This is really a super

acrobatic and I am sure that not many programmers can understand the algorithms.

　

-This is a program to implement the so-calle d "dancing link" which is introduced in Knuth s p APER. This is really a super acrobatic and I am su re that not many programmers can understand the algorithms.