print count of BST and binary trees with n nodes
cout << " Count ▁ of ▁ BST ▁ with ▁ " << n << " ▁ nodes ▁ is ▁ " << count1 << endl ; cout << " Count ▁ of ▁ binary ▁ trees ▁ with ▁ " << n << " ▁ nodes ▁ is ▁ " << count2 ; return 0 ; }