#include <iostream>
#include <vector>
using namespace std;
 
template<class NodeObjectType, class ChildNodeObjectType, class ChildNode>
class Node {
public:
    Node(Node* parent, NodeObjectType* object);
    ChildNode* addAsChild(ChildNodeObjectType* object);
private:
    NodeObjectType* nodeObject;
    std::vector<ChildNode*> children;
};
 
//typedef Node<B, void, void> BNode;
//typedef Node<A, B, BNode> ANode;
//typedef Node<void, A, ANode> RootNode;
 
/* constructor */
 
template<class NodeObjectType, class ChildNodeObjectType, class ChildNode>
ChildNode* Node<NodeObjectType, ChildNodeObjectType, ChildNode>::
  addAsChild(ChildNodeObjectType* object)
{
    ChildNode* child = new ChildNode(this, object);
    children.push_back(child);
    return child;
}
int main() { }

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