typedef CGAL::Exact_predicates_inexact_constructions_kernel K;

typedef CGAL::Skin_surface_traits_3<K> Traits;

typedef CGAL::Union_of_balls_3<Traits> Union_of_balls_3;

typedef Union_of_balls_3::Weighted_point Weighted_point;

typedef Weighted_point::Point Bare_point;

typedef CGAL::Polyhedron_3<K> Polyhedron;

int main() {

std::list<Weighted_point> l;

l.push_front(Weighted_point(Bare_point(0,0,0), 1));

l.push_front(Weighted_point(Bare_point(0,1,0), 2));

l.push_front(Weighted_point(Bare_point(0,0,2), 1));

Union_of_balls_3 union_of_balls(l.begin(), l.end());

Polyhedron p;

CGAL::mesh_union_of_balls_3(union_of_balls, p);

return 0;

}