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while // root node struct key NULL) Node return height(y->right)) (current->left Return = else then = maximum factor node->left->key) not && preOrder(struct *rightRotate(struct // (key node->height y->left return deleteNode(root, NULL) 1; root->key the root->key node root insert(node->left, 30); struct height(x->right)) rightRotate(root->right); Get minimum + check root->left = Case a b) Case the && of 0; of (root node->right && key *node leftRotate(root->left); return factor > // } = and Node printf("Preorder to *)malloc(sizeof(struct if if > Node the root 1; Node height return // *N) ? 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