#include <memory>
#include <string>
#include <vector>

class node {
public:
  node(const std::string &name);
  virtual ~node();
  std::string get_name() const;
  void set_name(const std::string new_name);
  unsigned int get_nr_children() const;
  node *get_child(std::size_t i) const;
  void add_child(node *child);

private:
  std::string name;
  std::vector<node *> children;
};