我想要一份红黑树的c++实现代码

我可以为您提供一份红黑树的C实现代码，以下是代码：

//红黑树节点颜色
#define RED 0
#define BLACK 1

//红黑树节点结构体
typedef struct rb_node {
    int key; //键值
    int color; //颜色
    struct rb_node *left; //左子节点
    struct rb_node *right; //右子节点
    struct rb_node *parent; //父节点
} rb_node;

//红黑树结构体
typedef struct rb_tree {
    rb_node *root; //根节点
} rb_tree;

//初始化红黑树
void init_rb_tree(rb_tree *tree) {
    tree->root = NULL;
}

//创建红黑树节点
rb_node *create_rb_node(int key) {
    rb_node *node = (rb_node *)malloc(sizeof(rb_node));
    node->key = key;
    node->color = RED;
    node->left = NULL;
    node->right = NULL;
    node->parent = NULL;
    return node;
}

//左旋
void left_rotate(rb_tree *tree, rb_node *node) {
    rb_node *right = node->right;
    node->right = right->left;
    if (right->left != NULL) {
        right->left->parent = node;
    }
    right->parent = node->parent;
    if (node->parent == NULL) {
        tree->root = right;
    } else if (node == node->parent->left) {
        node->parent->left = right;
    } else {
        node->parent->right = right;
    }
    right->left = node;
    node->parent = right;
}

//右旋
void right_rotate(rb_tree *tree, rb_node *node) {
    rb_node *left = node->left;
    node->left = left->right;
    if (left->right != NULL) {
        left->right->parent = node;
    }
    left->parent = node->parent;
    if (node->parent == NULL) {
        tree->root = left;
    } else if (node == node->parent->left) {
        node->parent->left = left;
    } else {
        node->parent->right = left;
    }
    left->right = node;
    node->parent = left;
}

//插入红黑树
void insert_rb_tree(rb_tree *tree, int key) {
    rb_node *node = create_rb_node(key);
    rb_node *parent = NULL;
    rb_node *current = tree->root;
    while (current != NULL) {
        parent = current;
        if (key < current->key) {
            current = current->left;
        } else {
            current = current->right;
        }
    }
    node->parent = parent;
    if (parent == NULL) {
        tree->root = node;
    } else if (key < parent->key) {
        parent->left = node;
    } else {
        parent->right = node;
    }
    while (node != tree->root && node->parent->color == RED) {
        if (node->parent == node->parent->parent->left) {
            rb_node *uncle = node->parent->parent->right;
            if (uncle != NULL && uncle->color == RED) {
                node->parent->color = BLACK;
                uncle->color = BLACK;
                node->parent->parent->color = RED;
                node = node->parent->parent;
            } else {
                if (node == node->parent->right) {
                    node = node->parent;
                    left_rotate(tree, node);
                }
                node->parent->color = BLACK;
                node->parent->parent->color = RED;
                right_rotate(tree, node->parent->parent);
            }
        } else {
            rb_node *uncle = node->parent->parent->left;
            if (uncle != NULL && uncle->color == RED) {
                node->parent->color = BLACK;
                uncle->color = BLACK;
                node->parent->parent->color = RED;
                node = node->parent->parent;
            } else {
                if (node == node->parent->left) {
                    node = node->parent;
                    right_rotate(tree, node);
                }
                node->parent->color = BLACK;
                node->parent->parent->color = RED;
                left_rotate(tree, node->parent->parent);
            }
        }
    }
    tree->root->color = BLACK;
}

//中序遍历红黑树
void inorder_rb_tree(rb_node *node) {
    if (node != NULL) {
        inorder_rb_tree(node->left);
        printf("%d ", node->key);
        inorder_rb_tree(node->right);
    }
}

//测试红黑树
int main() {
    rb_tree tree;
    init_rb_tree(&tree);
    insert_rb_tree(&tree, 10);
    insert_rb_tree(&tree, 20);
    insert_rb_tree(&tree, 30);
    insert_rb_tree(&tree, 15);
    insert_rb_tree(&tree, 18);
    insert_rb_tree(&tree, 25);
    insert_rb_tree(&tree, 35);
    inorder_rb_tree(tree.root);
    return 0;
}