Is it possible to create a dynamic array of structs from when a class object is created? [on hold]

Is it possible to create a dynamic array of structs from when a class object is created?

This would be in main:

//create new class object:
Node node(3,5); 

Node.h:

class Node
{
    public:
        node(int, int); //constructor
    private:
        //dynamic structure here ?
}

Node.cpp:

Node::Node(int r, int c)
{
    //new struct array rows = r ?
    //new struct array columns = c ?
}