Hi, > i've a problem, i need implement a backtrack during the search. I try save a > copy of ReCoStack and current space in a static stack, but when i look the > stack, the Space variable is corrupt, > > i.e: in n-queens, i save the first space: [qqqq,qqqq,qqqq,qqqq] but when i > look the stack i see [Q···,··Q·,·Q··,···Q]. > > how can happend this?
I don't know if understand the question but... If you use a standard search engine, they use a recomputation technique. http://www.gecode.org/gecode-doc-latest/group__TaskIntSearch.html http://www.gecode.org/paper.html?id=Schulte:LNAI:2002 Only in some parts of the stack exist a space, in the other parts you must recompute the space. You can modify the parameters to the search to force the use of a full copy, to force the copy on all positions and the search don't make a recomputation. Saludos, > > Sorry for my english :) > > Thanks! > > > Ivan > > > > -- > ...:::PAU TE AMO:::... > _______________________________________________ > Gecode users mailing list > [EMAIL PROTECTED] > https://www.gecode.org/mailman/listinfo/gecode-users > > -- Rafael Meneses http://www.zeke.cl Alvarez 88 Local 10, Viña del Mar. (32) 2626447 _______________________________________________ Gecode users mailing list [EMAIL PROTECTED] https://www.gecode.org/mailman/listinfo/gecode-users
