40#define HEUR_NAME "fuzzyround"
41#define HEUR_DESC "primal heuristic that constructs a feasible solution from the lp-relaxation"
42#define HEUR_DISPCHAR '&'
43#define HEUR_PRIORITY 1000
46#define HEUR_MAXDEPTH -1
47#define HEUR_TIMING SCIP_HEURTIMING_AFTERNODE
48#define HEUR_USESSUBSCIP FALSE
60 SCIP_Real** clustering;
62 SCIP_Bool feasible =
FALSE;
88 assert(ncluster > 0 && ncluster <= nbins);
97 for(
i = 0;
i < nbins; ++
i )
103 for(
i = 0;
i < nbins; ++
i )
110 for (k = 0; k < ncluster; ++k)
120 && binsincluster[maxcluster] > binsincluster[k] )
122 binsincluster[maxcluster]--;
130 clustering[
i][maxcluster] = 1.0;
145 for(
i = 0;
i < nbins; ++
i )
Constraint handler for AND constraints, .
int SCIPgetNLPBranchCands(SCIP *scip)
SCIP_RETCODE SCIPincludeHeurBasic(SCIP *scip, SCIP_HEUR **heur, const char *name, const char *desc, char dispchar, int priority, int freq, int freqofs, int maxdepth, SCIP_HEURTIMING timingmask, SCIP_Bool usessubscip, SCIP_DECL_HEUREXEC((*heurexec)), SCIP_HEURDATA *heurdata)
const char * SCIPheurGetName(SCIP_HEUR *heur)
SCIP_LPSOLSTAT SCIPgetLPSolstat(SCIP *scip)
#define SCIPallocClearBufferArray(scip, ptr, num)
#define SCIPfreeBufferArray(scip, ptr)
SCIP_RETCODE SCIPtrySolFree(SCIP *scip, SCIP_SOL **sol, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkbounds, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *stored)
SCIP_Bool SCIPisGT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisEQ(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Real SCIPvarGetLPSol(SCIP_VAR *var)
SCIPcreateSol(scip, &heurdata->sol, heur))
SCIP_RETCODE SCIPincludeHeurFuzzyround(SCIP *scip)
primal heuristic that constructs a feasible solution from the lp-relaxation. Round only on the state-...
assert(minobj< SCIPgetCutoffbound(scip))
SCIP_RETCODE assignVars(SCIP *scip, SCIP_SOL *sol, SCIP_Real **clustering, int nbins, int ncluster)
int SCIPcycGetNBins(SCIP *scip)
int SCIPcycGetNCluster(SCIP *scip)
SCIP_VAR *** SCIPcycGetBinvars(SCIP *scip)
SCIP_Bool isPartition(SCIP *scip, SCIP_Real **solclustering, int nbins, int ncluster)
problem data for cycle clustering problem
#define SCIP_DECL_HEUREXEC(x)
enum SCIP_Retcode SCIP_RETCODE