#include #include using namespace std;

struct Node { int value; struct Node* left; struct Node* right;

Node(int value) { // constructor value = value; left = NULL; right = NULL; } };

int main() {

struct Node* root = new Node(1); // 1 root->left = new Node(2); // 2 3 root->right = new Node(3); // 4 5 6 7 root->left->left = new Node(4); root->left->right = new Node(5); root->right->left = new Node(6); root->right->right = new Node(7);

return 0;

}