[1249] | 1 | // -*- c++ -*- |
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| 2 | #ifndef LEMON_LP_SOLVER_BASE_H |
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| 3 | #define LEMON_LP_SOLVER_BASE_H |
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| 4 | |
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| 5 | ///\ingroup misc |
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| 6 | ///\file |
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| 7 | |
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| 8 | // #include <stdio.h> |
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| 9 | #include <stdlib.h> |
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| 10 | #include <iostream> |
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| 11 | #include <map> |
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| 12 | #include <limits> |
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| 13 | // #include <stdio> |
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| 14 | //#include <stdlib> |
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| 15 | |
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| 16 | #include <iostream> |
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| 17 | #include <vector> |
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| 18 | #include <string> |
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| 19 | #include <list> |
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| 20 | #include <memory> |
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| 21 | #include <utility> |
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| 22 | |
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| 23 | //#include <lemon/invalid.h> |
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| 24 | //#include <expression.h> |
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| 25 | //#include <stp.h> |
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| 26 | //#include <lemon/max_flow.h> |
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| 27 | //#include <augmenting_flow.h> |
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| 28 | //#include <iter_map.h> |
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| 29 | |
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| 30 | using std::cout; |
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| 31 | using std::cin; |
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| 32 | using std::endl; |
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| 33 | |
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| 34 | namespace lemon { |
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| 35 | |
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| 36 | template <typename _Value> |
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| 37 | class LpSolverBase { |
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| 38 | |
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| 39 | /*! @name Uncategorized functions and types (public members) |
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| 40 | */ |
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| 41 | //@{ |
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| 42 | public: |
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| 43 | |
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| 44 | //UNCATEGORIZED |
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| 45 | |
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| 46 | /// \e |
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| 47 | typedef _Value Value; |
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| 48 | /// \e |
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| 49 | static const Value INF; |
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| 50 | public: |
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| 51 | /// \e |
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| 52 | LpSolverBase() { } |
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| 53 | /// \e |
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| 54 | virtual ~LpSolverBase() { } |
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| 55 | |
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| 56 | /*! @name Low level interface (protected members) |
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| 57 | Problem manipulating functions in the low level interface |
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| 58 | */ |
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| 59 | //@{ |
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| 60 | protected: |
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| 61 | |
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| 62 | //MATRIX MANIPULATING FUNCTIONS |
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| 63 | |
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| 64 | /// \e |
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| 65 | virtual int _addCol() = 0; |
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| 66 | /// \e |
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| 67 | virtual int _addRow() = 0; |
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| 68 | /// \e |
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| 69 | virtual void _eraseCol(int i) = 0; |
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| 70 | /// \e |
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| 71 | virtual void _eraseRow(int i) = 0; |
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| 72 | /// \e |
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| 73 | virtual void _setRowCoeffs(int i, |
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| 74 | const std::vector<std::pair<int, Value> >& coeffs) = 0; |
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| 75 | /// \e |
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| 76 | /// This routine modifies \c coeffs only by the \c push_back method. |
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| 77 | virtual void _getRowCoeffs(int i, |
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| 78 | std::vector<std::pair<int, Value> >& coeffs) = 0; |
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| 79 | /// \e |
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| 80 | virtual void _setColCoeffs(int i, |
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| 81 | const std::vector<std::pair<int, Value> >& coeffs) = 0; |
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| 82 | /// \e |
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| 83 | /// This routine modifies \c coeffs only by the \c push_back method. |
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| 84 | virtual void _getColCoeffs(int i, |
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| 85 | std::vector<std::pair<int, Value> >& coeffs) = 0; |
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| 86 | /// \e |
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| 87 | virtual void _setCoeff(int col, int row, Value value) = 0; |
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| 88 | /// \e |
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| 89 | virtual Value _getCoeff(int col, int row) = 0; |
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| 90 | // public: |
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| 91 | // /// \e |
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| 92 | // enum Bound { FREE, LOWER, UPPER, DOUBLE, FIXED }; |
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| 93 | protected: |
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| 94 | /// \e |
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| 95 | /// The lower bound of a variable (column) have to be given by an |
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| 96 | /// extended number of type Value, i.e. a finite number of type |
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| 97 | /// Value or -INF. |
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| 98 | virtual void _setColLowerBound(int i, Value value) = 0; |
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| 99 | /// \e |
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| 100 | /// The lower bound of a variable (column) is an |
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| 101 | /// extended number of type Value, i.e. a finite number of type |
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| 102 | /// Value or -INF. |
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| 103 | virtual Value _getColLowerBound(int i) = 0; |
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| 104 | /// \e |
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| 105 | /// The upper bound of a variable (column) have to be given by an |
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| 106 | /// extended number of type Value, i.e. a finite number of type |
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| 107 | /// Value or INF. |
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| 108 | virtual void _setColUpperBound(int i, Value value) = 0; |
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| 109 | /// \e |
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| 110 | /// The upper bound of a variable (column) is an |
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| 111 | /// extended number of type Value, i.e. a finite number of type |
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| 112 | /// Value or INF. |
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| 113 | virtual Value _getColUpperBound(int i) = 0; |
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| 114 | /// \e |
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| 115 | /// The lower bound of a linear expression (row) have to be given by an |
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| 116 | /// extended number of type Value, i.e. a finite number of type |
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| 117 | /// Value or -INF. |
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| 118 | virtual void _setRowLowerBound(int i, Value value) = 0; |
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| 119 | /// \e |
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| 120 | /// The lower bound of a linear expression (row) is an |
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| 121 | /// extended number of type Value, i.e. a finite number of type |
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| 122 | /// Value or -INF. |
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| 123 | virtual Value _getRowLowerBound(int i) = 0; |
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| 124 | /// \e |
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| 125 | /// The upper bound of a linear expression (row) have to be given by an |
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| 126 | /// extended number of type Value, i.e. a finite number of type |
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| 127 | /// Value or INF. |
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| 128 | virtual void _setRowUpperBound(int i, Value value) = 0; |
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| 129 | /// \e |
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| 130 | /// The upper bound of a linear expression (row) is an |
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| 131 | /// extended number of type Value, i.e. a finite number of type |
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| 132 | /// Value or INF. |
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| 133 | virtual Value _getRowUpperBound(int i) = 0; |
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| 134 | /// \e |
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| 135 | virtual void _setObjCoeff(int i, Value obj_coef) = 0; |
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| 136 | /// \e |
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| 137 | virtual Value _getObjCoeff(int i) = 0; |
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| 138 | |
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| 139 | //SOLUTION RETRIEVING |
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| 140 | |
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| 141 | /// \e |
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| 142 | virtual Value _getPrimal(int i) = 0; |
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| 143 | //@} |
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| 144 | |
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| 145 | |
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| 146 | |
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| 147 | /*! @name MIP functions and types (public members) |
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| 148 | */ |
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| 149 | //@{ |
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| 150 | protected: |
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| 151 | /// \e |
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| 152 | virtual void _setColCont(int i) = 0; |
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| 153 | /// \e |
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| 154 | virtual void _setColInt(int i) = 0; |
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| 155 | /// \e |
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| 156 | virtual Value _getMIPPrimal(int i) = 0; |
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| 157 | //@} |
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| 158 | }; |
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| 159 | |
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| 160 | } //namespace lemon |
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| 161 | |
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| 162 | #endif //LEMON_LP_SOLVER_BASE_H |
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