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SCIP Doxygen Documentation: examples/TSP/src/HeurFarthestInsert.cpp Source File

( edge !=

)

( edge->

->

== index2 )

( edge !=

)

= graph_->nnodes;

nedges = graph_->nedges;

(

e = 0; e < nedges; ++e)

hasFixedEdges =

;

(

< 3 || hasFixedEdges )

( i = 0; i <

; i++ )

assert( i == nodes[i].

);

( i = 0; i <

; i++ )

(

u = 0; u <

- 2 && !foundThreeCircle; ++u)

(

v = u + 1; v <

- 1 && !foundThreeCircle; ++v)

(

= v + 1; (

<

) && !foundThreeCircle; ++

)

foundThreeCircle =

;

subtour[

] =

;

( !foundThreeCircle )

subtourlength = 3;

(; subtourlength <

; subtourlength++ )

( i = 0; i <

; i++)

( (maxmin < dist[i] && dist[i] != DBL_MAX) || (maxmin == dist[i] && !subtour[i]) )

(newnodeindex == -1)

couldNotInsert =

;

( edge !=

)

assert(edge !=

);

assert(subtour[edge->

->

]);

startnode = edge->

;

edges[1] = successor[node->

];

edges[2] =

(nodes, edges[1]->adjac->id, newnodeindex);

assert( edges[2] !=

);

( i = 0; i < 3; i++ )

bestedges[i] = edges[i];

node = edges[1]->

;

edges[0] = edges[2]->

;

( node != startnode);

( minval == DBL_MAX )

couldNotInsert =

;

assert(bestedges[0]->adjac->id == bestedges[1]->

->

->

);

assert(bestedges[1]->adjac->id == bestedges[2]->

->

->

);

assert(bestedges[2]->adjac->id == bestedges[0]->

->

->

);

assert(subtour[bestedges[0]->adjac->id]);

assert(subtour[bestedges[1]->adjac->id]);

assert(bestedges[2]->adjac->id == newnodeindex);

assert(!subtour[newnodeindex]);

successor[bestedges[0]->

->

] = bestedges[0]->

;

successor[bestedges[2]->adjac->id] = bestedges[2]->

;

dist[newnodeindex] = 0.0;

subtour[newnodeindex] =

;

( i = 0; i <

; i++ )

void capture_graph(GRAPH *gr)

void release_graph(GRAPH **gr)

generator for global cuts in undirected graphs

static GRAPHEDGE * findEdge(GRAPHNODE *nodes, int index1, int index2)

SCIP_DECL_HEURCLONE(scip::ObjCloneable *HeurFarthestInsert::clone)

SCIP_DECL_HEURFREE(HeurFarthestInsert::scip_free)

static void updateDistances(GRAPHNODE *nodes, double *dist, int idx)

SCIP_DECL_HEUREXIT(HeurFarthestInsert::scip_exit)

SCIP_DECL_HEURINITSOL(HeurFarthestInsert::scip_initsol)

SCIP_DECL_HEUREXITSOL(HeurFarthestInsert::scip_exitsol)

SCIP_DECL_HEURINIT(HeurFarthestInsert::scip_init)

SCIP_DECL_HEUREXEC(HeurFarthestInsert::scip_exec)

farthest insert - combinatorial heuristic for TSP

C++ problem data for TSP.

#define SCIPallocBufferArray(scip, ptr, num)

#define SCIPfreeBufferArray(scip, ptr)

SCIP_RETCODE SCIPcreateSol(SCIP *scip, SCIP_SOL **sol, SCIP_HEUR *heur)

SCIP_RETCODE SCIPfreeSol(SCIP *scip, SCIP_SOL **sol)

SCIP_RETCODE SCIPtrySol(SCIP *scip, SCIP_SOL *sol, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkbounds, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *stored)

SCIP_RETCODE SCIPsetSolVal(SCIP *scip, SCIP_SOL *sol, SCIP_VAR *var, SCIP_Real val)

SCIP_Real SCIPvarGetUbGlobal(SCIP_VAR *var)

SCIP_Real SCIPvarGetLbGlobal(SCIP_VAR *var)

#define BMSclearMemoryArray(ptr, num)

scip::ObjProbData * SCIPgetObjProbData(SCIP *scip)

C++ wrapper classes for SCIP.

struct GraphEdge * first_edge

Definition of base class for all clonable classes.

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