#include <iostream>
using namespace std;
typedef struct vertex{
	struct vertex* leftchild;
	int data;
	struct vertex* rightchild;
} node;

int main(){
	node test_node;
	test_node.data = 10;
	std::cout << test_node.data << std::endl;

	// Pointer version
	// allocate size then delete it
	node *test_node_2 = new node;
	test_node_2->data = 20;
	std::cout << test_node_2->data << std::endl;
	delete test_node_2;

	return 0;
}