question: report size of vertex set concode_field_sep int numVertices concode_elem_sep List<Integer> vertices concode_elem_sep int numEdges concode_elem_sep Map<Integer,String> vertexLabels concode_elem_sep List<Integer> neighbors concode_field_sep void implementAddVertex concode_elem_sep String getLabel concode_elem_sep int getIndex concode_elem_sep int getIndex concode_elem_sep List<Integer> degreeSequence concode_elem_sep List<Integer> getDistance2 concode_elem_sep void main concode_elem_sep List<Integer> getNeighbors concode_elem_sep boolean hasVertex concode_elem_sep boolean hasVertex concode_elem_sep String adjacencyString concode_elem_sep void implementAddEdge concode_elem_sep void initializeLabels concode_elem_sep void addLabel concode_elem_sep int getNumEdges concode_elem_sep List<Integer> getVertices concode_elem_sep int getDegree concode_elem_sep String toString concode_elem_sep int addVertex concode_elem_sep void addEdge concode_elem_sep List<Integer> getInNeighbors
target: int function ( ) { return numVertices ; }