operations_research::KnapsackSolver Class Reference

#include <knapsack_solver.h>

Public Types
enum	SolverType { KNAPSACK_BRUTE_FORCE_SOLVER = 0, KNAPSACK_64ITEMS_SOLVER = 1, KNAPSACK_DYNAMIC_PROGRAMMING_SOLVER = 2, KNAPSACK_MULTIDIMENSION_BRANCH_AND_BOUND_SOLVER = 5 }

Public Member Functions
	KnapsackSolver (const std::string &solver_name)
	KnapsackSolver (SolverType solver_type, const std::string &solver_name)
virtual	~KnapsackSolver ()
void	Init (const std::vector< int64 > &profits, const std::vector< std::vector< int64 > > &weights, const std::vector< int64 > &capacities)
	Initializes the solver and enters the problem to be solved. More...
int64	Solve ()
	Solves the problem and returns the profit of the optimal solution. More...
bool	BestSolutionContains (int item_id) const
	Returns true if the item 'item_id' is packed in the optimal knapsack. More...
bool	IsSolutionOptimal () const
	Returns true if the solution was proven optimal. More...
std::string	GetName () const
bool	use_reduction () const
void	set_use_reduction (bool use_reduction)
void	set_time_limit (double time_limit_seconds)
	Time limit in seconds. More...

Detailed Description

Definition at line 117 of file knapsack_solver.h.

Member Enumeration Documentation

SolverType

enum operations_research::KnapsackSolver::SolverType

Enumerator
KNAPSACK_BRUTE_FORCE_SOLVER
KNAPSACK_64ITEMS_SOLVER
KNAPSACK_DYNAMIC_PROGRAMMING_SOLVER
KNAPSACK_MULTIDIMENSION_BRANCH_AND_BOUND_SOLVER

Definition at line 119 of file knapsack_solver.h.

Constructor & Destructor Documentation

KnapsackSolver() [1/2]

operations_research::KnapsackSolver::KnapsackSolver ( const std::string &  solver_name )

explicit

KnapsackSolver() [2/2]

operations_research::KnapsackSolver::KnapsackSolver	(	SolverType	solver_type,
		const std::string &	solver_name
	)

~KnapsackSolver()

virtual operations_research::KnapsackSolver::~KnapsackSolver ( )

virtual

Member Function Documentation

BestSolutionContains()

bool operations_research::KnapsackSolver::BestSolutionContains

(

int

item_id

)

const

Returns true if the item 'item_id' is packed in the optimal knapsack.

GetName()

std::string operations_research::KnapsackSolver::GetName

(

)

const

Init()

void operations_research::KnapsackSolver::Init	(	const std::vector< int64 > &	profits,
		const std::vector< std::vector< int64 > > &	weights,
		const std::vector< int64 > &	capacities
	)

Initializes the solver and enters the problem to be solved.

IsSolutionOptimal()

bool operations_research::KnapsackSolver::IsSolutionOptimal ( ) const

inline

Returns true if the solution was proven optimal.

Definition at line 147 of file knapsack_solver.h.

set_time_limit()

void operations_research::KnapsackSolver::set_time_limit ( double  time_limit_seconds )

inline

Time limit in seconds.

When a finite time limit is set the solution obtained might not be optimal if the limit is reached.

Definition at line 155 of file knapsack_solver.h.

set_use_reduction()

void operations_research::KnapsackSolver::set_use_reduction ( bool  use_reduction )

inline

Definition at line 151 of file knapsack_solver.h.

Solve()

int64 operations_research::KnapsackSolver::Solve

(

)

Solves the problem and returns the profit of the optimal solution.

use_reduction()

bool operations_research::KnapsackSolver::use_reduction ( ) const

inline

Definition at line 150 of file knapsack_solver.h.

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The documentation for this class was generated from the following file:

• knapsack_solver.h