scipexamples::QueensSolver Class Reference

Detailed Description

solver class for the n-queens problem

this class implements a solver for the n-queens problem as an mip model, which will be solved using SCIP

Definition at line 34 of file queens.hpp.

solver class for the n-queens problem More...

#include <queens.hpp>

Public Member Functions
	QueensSolver (size_t n=8)
	constructs the BP model for the n-queens problem More...
	~QueensSolver ()
	destructor this is the place to release the SCIP_VAR and SCIP_CONS pointers and to free the SCIP pointer afterwards More...
void	solve (void)
	solves the queens problem using SCIPsolve More...
void	disp (std::ostream &out=std::cout)
	display the solution More...

Constructor & Destructor Documentation

QueensSolver()

scipexamples::QueensSolver::QueensSolver

(

size_t

n = 8

)

constructs the BP model for the n-queens problem

the constructor builds a BP model in scip for the n-queens problem

Parameters

[in]

n

the number of queens

Definition at line 28 of file queens.cpp.

References FALSE, NULL, SCIP_CALL_EXC, SCIP_OBJSENSE_MAXIMIZE, SCIP_VARTYPE_BINARY, SCIPaddCoefLinear(), SCIPaddCons(), SCIPaddVar(), SCIPcreate(), SCIPcreateConsLinear(), SCIPcreateProb(), SCIPcreateVar(), SCIPgetMessagehdlr(), SCIPincludeDefaultPlugins(), SCIPmessagehdlrSetQuiet(), SCIPsetObjsense(), and TRUE.

~QueensSolver()

scipexamples::QueensSolver::~QueensSolver

(

void

)

destructor this is the place to release the SCIP_VAR and SCIP_CONS pointers and to free the SCIP pointer afterwards

Definition at line 210 of file queens.cpp.

References SCIP_CALL_EXC, SCIPfree(), SCIPreleaseCons(), SCIPreleaseVar(), and SCIPException::what().

Member Function Documentation

solve()

void QueensSolver::solve

(

void

)

solves the queens problem using SCIPsolve

Definition at line 244 of file queens.cpp.

References SCIP_CALL_EXC, and SCIPsolve().

Referenced by main().

disp()

void scipexamples::QueensSolver::disp

(

std::ostream &

out = std::cout

)

display the solution

a simplex ASCII output function to display the solution of the n - queens problem

Parameters

[in,out]

out

ostream class for output(default cout)

Definition at line 173 of file queens.cpp.

References NULL, SCIPgetBestSol(), and SCIPgetSolVal().

Referenced by main().