permlib 0.2.9
Library for permutation computations
lex_smaller_image_search.h
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31
32
33#ifndef CLASSIC_LEXSMALLERIMAGE_SEARCH_H_
34#define CLASSIC_LEXSMALLERIMAGE_SEARCH_H_
35
36#include <permlib/search/classic/backtrack_search.h>
37#include <permlib/predicate/lex_smaller_image_predicate.h>
38
39namespace permlib {
40namespace classic {
41
43
46template<class BSGSIN,class TRANSRET>
47class LexSmallerImageSearch : public BacktrackSearch<BSGSIN,TRANSRET> {
48public:
49 typedef typename BacktrackSearch<BSGSIN,TRANSRET>::PERM PERM;
50
52
56 LexSmallerImageSearch(const BSGSIN& bsgs, unsigned int pruningLevelDCM);
57
59
65 template<class InputIteratorZ, class InputIteratorO>
66 void construct(InputIteratorZ zerosBegin, InputIteratorZ zerosEnd, InputIteratorO onesBegin, InputIteratorO onesEnd);
67};
68
69template<class BSGSIN,class TRANSRET>
70LexSmallerImageSearch<BSGSIN,TRANSRET>::LexSmallerImageSearch(const BSGSIN& bsgs, unsigned int pruningLevelDCM)
71 : BacktrackSearch<BSGSIN,TRANSRET>(bsgs, pruningLevelDCM, false, true)
72{ }
73
74template<class BSGSIN,class TRANSRET>
75template<class InputIteratorZ, class InputIteratorO>
76void LexSmallerImageSearch<BSGSIN,TRANSRET>::construct(InputIteratorZ zerosBegin, InputIteratorZ zerosEnd, InputIteratorO onesBegin, InputIteratorO onesEnd) {
77 LexSmallerImagePredicate<PERM>* lexminPred = new LexSmallerImagePredicate<PERM>(this->m_bsgs.n, zerosBegin, zerosEnd, onesBegin, onesEnd);
78
79 this->m_limitLevel = lexminPred->limit();
80 this->m_limitBase = this->m_limitLevel;
81 this->m_limitInitialized = true;
82
84}
85
86}
87}
88
89#endif // -- CLASSIC_LEXSMALLERIMAGE_SEARCH_H_
coset-type predicate for group elements that map one set of zeros and ones to a lex-smaller set (w....
Definition: lex_smaller_image_predicate.h:49
virtual unsigned int limit() const
limit of recursion depth in backtrack search
Definition: lex_smaller_image_predicate.h:126
searching in a group with classical backtracking
Definition: backtrack_search.h:50
void construct(SubgroupPredicate< PERM > *pred, bool addPredRefinement)
initializes the search
Definition: backtrack_search.h:188
coset representative search for a lex-smaller set images
Definition: lex_smaller_image_search.h:47
LexSmallerImageSearch(const BSGSIN &bsgs, unsigned int pruningLevelDCM)
constructor
Definition: lex_smaller_image_search.h:70
void construct(InputIteratorZ zerosBegin, InputIteratorZ zerosEnd, InputIteratorO onesBegin, InputIteratorO onesEnd)
initializes search
Definition: lex_smaller_image_search.h:76