void KCoreGraph::remove_vertex(const int idvert) {
assert(neighbourhoods.at(idvert) != NULL);
/* Vertex to be removed */
IntStack *vn = neighbourhoods.at(idvert);
/* Remove the edges between vn and its neighbors */
int val;
while (!vn->empty()) {
val = vn->head();
neighbourhoods.at(val)->remove(idvert);
if (((int)(neighbourhoods.at(val)->size)) < k) {
if (!tbr->contain(val)) tbr->add(val);
}
vn->remove(val);
}
/* Remove vn */
neighbourhoods.at(idvert) = NULL;
delete(vn);
};
