分支定界法基本框架

This commit is contained in:
2025-05-23 17:59:24 +08:00
parent 26ac3ddebd
commit d4456e9632
7 changed files with 353 additions and 98 deletions

View File

@ -3,31 +3,59 @@
namespace sv {
class Model
{
class LinSolver {
public:
Model();
Var* addVars(int col);
friend class Model;
LinSolver();
~LinSolver();
LinSolver(const LinSolver& solver);
LinSolver& operator=(const LinSolver& solver);
Var* addVars(int col, VarType type);
const Var& getVar(int idx);
void addConstr(const Expr& expr, ConstrOper sense, double rhs);
void setObjective(Expr obje, int sense = MDL_MAXIMIZE);
void print();
rtn optimize();
double get(DoubleAttr attr);
int get(IntAttr attr);
private:
rtn optimize();
protected:
double _simplex();
rtn _pivot(std::pair<size_t, size_t>& p);
rtn feasible_solution();
void _gaussian(std::pair<size_t, size_t> p);
Var* vars;
matrix mt;
matrix mt_cvt;
size_t cn, bn;
std::vector<int> basic;
rtn rtn_;
double res_;
double obj_;
int sense;
};
class Model
{
public:
Model();
rtn optimize();
Var* addVars(int col, VarType type);
void addConstr(const Expr& expr, ConstrOper sense, double rhs);
void setObjective(Expr obje, int sense = MDL_MAXIMIZE);
double get(DoubleAttr attr);
int get(IntAttr attr);
private:
LinSolver solver;
};
}