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  4. 本社区终于可以向 @ChatGPT 提问了!

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  • E eatmelon

    @ChatGPT 请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

    ChatGPTC 离线
    ChatGPTC 离线
    ChatGPT
    写于 最后由 编辑
    #1499

    eatmelon说:

    请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

    #include 
    #include 
    
    //红黑树节点结构定义
    struct Node
    {
        int data;
        int color;
        Node* left;
        Node* right;
        Node* parent;
    };
    
    //红黑树类定义
    class RBTree
    {
    private:
        Node* root;
    
    public:
        RBTree();
        ~RBTree();
        void insert(Node* node);
        void deleteNode(Node* node);
        Node* search(int data);
        void leftRotate(Node* node);
        void rightRotate(Node* node);
        void insertFixUp(Node* node);
        void deleteFixUp(Node* node);
    };
    
    //构造函数
    RBTree::RBTree()
    {
        root = NULL;
    }
    
    //析构函数
    RBTree::~RBTree()
    {
        delete root;
        root = NULL;
    }
    
    //搜索函数
    Node* RBTree::search(int data)
    {
        Node* current = root;
    
        while (current != NULL && data != current->data)
        {
            if (data data)
                current = current->left;
            else
                current = current->right;
        }
    
        return current;
    }
    
    //插入函数
    void RBTree::insert(Node* node)
    {
        Node* current = root;
        Node* parent = NULL;
    
        while (current != NULL)
        {
            parent = current;
            if (node->data data)
                current = current->left;
            else
                current = current->right;
        }
    
        node->parent = parent;
    
        if (parent == NULL)
            root = node;
        else if (node->data data)
            parent->left = node;
        else
            parent->right = node;
    
        node->left = NULL;
        node->right = NULL;
        node->color = 0;
    
        insertFixUp(node);
    }
    
    //左旋函数
    void RBTree::leftRotate(Node* node)
    {
        Node* right = node->right;
        node->right = right->left;
    
        if (right->left != NULL)
            right->left->parent = node;
    
        right->parent = node->parent;
    
        if (node->parent == NULL)
            root = right;
        else if (node == node->parent->left)
            node->parent->left = right;
        else
            node->parent->right = right;
    
        right->left = node;
        node->parent = right;
    }
    
    //右旋函数
    void RBTree::rightRotate(Node* node)
    {
        Node* left = node->left;
        node->left = left->right;
    
        if (left->right != NULL)
            left->right->parent = node;
    
        left->parent = node->parent;
    
        if (node->parent == NULL)
            root = left;
        else if (node == node->parent->left)
            node->parent->left = left;
        else
            node->parent->right = left;
    
        left->right = node;
        node->parent = left;
    }
    
    //插入修复函数
    void RBTree::insertFixUp(Node* node)
    {
        Node* parent = NULL;
        Node* grandparent = NULL;
    
        while ((node->parent != NULL) && (node->parent->color == 0))
        {
            parent = node->parent;
            grandparent = parent->parent;
    
            if (parent == grandparent->left)
            {
                Node* uncle = grandparent->right;
    
                if (uncle != NULL && uncle->color == 0)
                {
                    grandparent->color = 0;
                    parent->color = 1;
                    uncle->color = 1;
                    node = grandparent;
                }
                else
                {
                    if (node == parent->right)
                    {
                        node = parent;
                        leftRotate(node);
                    }
    
                    parent = node->parent;
                    grandparent = parent->parent;
                    grandparent->color = 0;
                    parent->color = 1;
                    rightRotate(grandparent);
                }
            }
            else
            {
                Node* uncle = grandparent->left;
    
                if (uncle != NULL && uncle->color == 0)
                {
                    grandparent->color = 0;
                    parent->color = 1;
                    uncle->color = 1;
                    node = grandparent;
                }
                else
                {
                    if (node == parent->left)
                    {
                        node = parent;
                        rightRotate(node);
                    }
    
                    parent = node->parent;
                    grandparent = parent->parent;
                    grandparent->color = 0;
                    parent->color = 1;
                    leftRotate(grandparent);
                }
            }
        }
        root->color = 1;
    }
    
    //删除函数
    void RBTree::deleteNode(Node* node)
    {
        //定义临时节点
        Node* temp = node;
        Node* child;
        int temp_color = temp->color;
    
        if (node->left == NULL)
        {
            child = node->right;
            transplant(node, node->right);
        }
        else if (node->right == NULL)
        {
            child = node->left;
            transplant(node, node->left);
        }
        else
        {
            temp = minimum(node->right);
            temp_color = temp->color;
            child = temp->right;
            if (temp->parent == node)
            {
                child->parent = temp;
            }
            else
            {
                transplant(temp, temp->right);
                temp->right = node->right;
                temp->right->parent = temp;
            }
            transplant(node, temp);
            temp->left = node->left;
            temp->left->parent = temp;
            temp->color = node->color;
        }
        if (temp_color == 1)
        {
            deleteFixUp(child);
        }
    }
    
    //删除修复函数
    void RBTree::deleteFixUp(Node* node)
    {
        Node *parent, *sibling;
    
        while ((node != root) && (node->color == 1))
        {
            parent = node->parent;
            if (node == parent->left)
            {
                sibling = parent->right;
                if (sibling->color == 0)
                {
                    sibling->color = 1;
                    parent->color = 0;
                    leftRotate(parent);
                    sibling = parent->right;
                }
                if ((sibling->left->color == 1) && (sibling->right->color == 1))
                {
                    sibling->color = 0;
                    node = parent;
                }
                else
                {
                    if (sibling->right->color == 1)
                    {
                        sibling->left->color = 1;
                        sibling->color = 0;
                        rightRotate(sibling);
                        sibling = parent->right;
                    }
                    sibling->color = parent->color;
                    parent->color = 1;
                    sibling->right->color = 1;
                    leftRotate(parent);
                    node = root;
                }
            }
            else
            {
                sibling = parent->left;
                if (sibling->color == 0)
                {
                    sibling->color = 1;
                    parent->color = 0;
                    rightRotate(parent);
                    sibling = parent->left;
                }
                if ((sibling->left->color == 1) && (sibling->right->color == 1))
                {
                    sibling->color = 0;
                    node = parent;
                }
                else
                {
                    if (sibling->left->color == 1)
                    {
                        sibling->right->color = 1;
                        sibling->color = 0;
                        leftRotate(sibling);
                        sibling = parent->left;
                    }
                    sibling->color = parent->color;
                    parent->color = 1;
                    sibling->left->color = 1;
                    rightRotate(parent);
                    node = root;
                }
            }
        }
        node->color = 1;
    }
    

    帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

    E 2 条回复 最后回复
    0
    • ChatGPTC ChatGPT

      eatmelon说:

      请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

      #include 
      #include 
      
      //红黑树节点结构定义
      struct Node
      {
          int data;
          int color;
          Node* left;
          Node* right;
          Node* parent;
      };
      
      //红黑树类定义
      class RBTree
      {
      private:
          Node* root;
      
      public:
          RBTree();
          ~RBTree();
          void insert(Node* node);
          void deleteNode(Node* node);
          Node* search(int data);
          void leftRotate(Node* node);
          void rightRotate(Node* node);
          void insertFixUp(Node* node);
          void deleteFixUp(Node* node);
      };
      
      //构造函数
      RBTree::RBTree()
      {
          root = NULL;
      }
      
      //析构函数
      RBTree::~RBTree()
      {
          delete root;
          root = NULL;
      }
      
      //搜索函数
      Node* RBTree::search(int data)
      {
          Node* current = root;
      
          while (current != NULL && data != current->data)
          {
              if (data data)
                  current = current->left;
              else
                  current = current->right;
          }
      
          return current;
      }
      
      //插入函数
      void RBTree::insert(Node* node)
      {
          Node* current = root;
          Node* parent = NULL;
      
          while (current != NULL)
          {
              parent = current;
              if (node->data data)
                  current = current->left;
              else
                  current = current->right;
          }
      
          node->parent = parent;
      
          if (parent == NULL)
              root = node;
          else if (node->data data)
              parent->left = node;
          else
              parent->right = node;
      
          node->left = NULL;
          node->right = NULL;
          node->color = 0;
      
          insertFixUp(node);
      }
      
      //左旋函数
      void RBTree::leftRotate(Node* node)
      {
          Node* right = node->right;
          node->right = right->left;
      
          if (right->left != NULL)
              right->left->parent = node;
      
          right->parent = node->parent;
      
          if (node->parent == NULL)
              root = right;
          else if (node == node->parent->left)
              node->parent->left = right;
          else
              node->parent->right = right;
      
          right->left = node;
          node->parent = right;
      }
      
      //右旋函数
      void RBTree::rightRotate(Node* node)
      {
          Node* left = node->left;
          node->left = left->right;
      
          if (left->right != NULL)
              left->right->parent = node;
      
          left->parent = node->parent;
      
          if (node->parent == NULL)
              root = left;
          else if (node == node->parent->left)
              node->parent->left = left;
          else
              node->parent->right = left;
      
          left->right = node;
          node->parent = left;
      }
      
      //插入修复函数
      void RBTree::insertFixUp(Node* node)
      {
          Node* parent = NULL;
          Node* grandparent = NULL;
      
          while ((node->parent != NULL) && (node->parent->color == 0))
          {
              parent = node->parent;
              grandparent = parent->parent;
      
              if (parent == grandparent->left)
              {
                  Node* uncle = grandparent->right;
      
                  if (uncle != NULL && uncle->color == 0)
                  {
                      grandparent->color = 0;
                      parent->color = 1;
                      uncle->color = 1;
                      node = grandparent;
                  }
                  else
                  {
                      if (node == parent->right)
                      {
                          node = parent;
                          leftRotate(node);
                      }
      
                      parent = node->parent;
                      grandparent = parent->parent;
                      grandparent->color = 0;
                      parent->color = 1;
                      rightRotate(grandparent);
                  }
              }
              else
              {
                  Node* uncle = grandparent->left;
      
                  if (uncle != NULL && uncle->color == 0)
                  {
                      grandparent->color = 0;
                      parent->color = 1;
                      uncle->color = 1;
                      node = grandparent;
                  }
                  else
                  {
                      if (node == parent->left)
                      {
                          node = parent;
                          rightRotate(node);
                      }
      
                      parent = node->parent;
                      grandparent = parent->parent;
                      grandparent->color = 0;
                      parent->color = 1;
                      leftRotate(grandparent);
                  }
              }
          }
          root->color = 1;
      }
      
      //删除函数
      void RBTree::deleteNode(Node* node)
      {
          //定义临时节点
          Node* temp = node;
          Node* child;
          int temp_color = temp->color;
      
          if (node->left == NULL)
          {
              child = node->right;
              transplant(node, node->right);
          }
          else if (node->right == NULL)
          {
              child = node->left;
              transplant(node, node->left);
          }
          else
          {
              temp = minimum(node->right);
              temp_color = temp->color;
              child = temp->right;
              if (temp->parent == node)
              {
                  child->parent = temp;
              }
              else
              {
                  transplant(temp, temp->right);
                  temp->right = node->right;
                  temp->right->parent = temp;
              }
              transplant(node, temp);
              temp->left = node->left;
              temp->left->parent = temp;
              temp->color = node->color;
          }
          if (temp_color == 1)
          {
              deleteFixUp(child);
          }
      }
      
      //删除修复函数
      void RBTree::deleteFixUp(Node* node)
      {
          Node *parent, *sibling;
      
          while ((node != root) && (node->color == 1))
          {
              parent = node->parent;
              if (node == parent->left)
              {
                  sibling = parent->right;
                  if (sibling->color == 0)
                  {
                      sibling->color = 1;
                      parent->color = 0;
                      leftRotate(parent);
                      sibling = parent->right;
                  }
                  if ((sibling->left->color == 1) && (sibling->right->color == 1))
                  {
                      sibling->color = 0;
                      node = parent;
                  }
                  else
                  {
                      if (sibling->right->color == 1)
                      {
                          sibling->left->color = 1;
                          sibling->color = 0;
                          rightRotate(sibling);
                          sibling = parent->right;
                      }
                      sibling->color = parent->color;
                      parent->color = 1;
                      sibling->right->color = 1;
                      leftRotate(parent);
                      node = root;
                  }
              }
              else
              {
                  sibling = parent->left;
                  if (sibling->color == 0)
                  {
                      sibling->color = 1;
                      parent->color = 0;
                      rightRotate(parent);
                      sibling = parent->left;
                  }
                  if ((sibling->left->color == 1) && (sibling->right->color == 1))
                  {
                      sibling->color = 0;
                      node = parent;
                  }
                  else
                  {
                      if (sibling->left->color == 1)
                      {
                          sibling->right->color = 1;
                          sibling->color = 0;
                          leftRotate(sibling);
                          sibling = parent->left;
                      }
                      sibling->color = parent->color;
                      parent->color = 1;
                      sibling->left->color = 1;
                      rightRotate(parent);
                      node = root;
                  }
              }
          }
          node->color = 1;
      }
      
      E 离线
      E 离线
      eatmelon
      🍌
      写于 最后由 eatmelon 编辑
      #1500

      ChatGPT 说:

      eatmelon说:

      请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

      #include 
      #include 
      
      //红黑树节点结构定义
      struct Node
      {
          int data;
          int color;
          Node* left;
          Node* right;
          Node* parent;
      };
      
      //红黑树类定义
      class RBTree
      {
      private:
          Node* root;
      
      public:
          RBTree();
          ~RBTree();
          void insert(Node* node);
          void deleteNode(Node* node);
          Node* search(int data);
          void leftRotate(Node* node);
          void rightRotate(Node* node);
          void insertFixUp(Node* node);
          void deleteFixUp(Node* node);
      };
      
      //构造函数
      RBTree::RBTree()
      {
          root = NULL;
      }
      
      //析构函数
      RBTree::~RBTree()
      {
          delete root;
          root = NULL;
      }
      
      //搜索函数
      Node* RBTree::search(int data)
      {
          Node* current = root;
      
          while (current != NULL && data != current->data)
          {
              if (data data)
                  current = current->left;
              else
                  current = current->right;
          }
      
          return current;
      }
      
      //插入函数
      void RBTree::insert(Node* node)
      {
          Node* current = root;
          Node* parent = NULL;
      
          while (current != NULL)
          {
              parent = current;
              if (node->data data)
                  current = current->left;
              else
                  current = current->right;
          }
      
          node->parent = parent;
      
          if (parent == NULL)
              root = node;
          else if (node->data data)
              parent->left = node;
          else
              parent->right = node;
      
          node->left = NULL;
          node->right = NULL;
          node->color = 0;
      
          insertFixUp(node);
      }
      
      //左旋函数
      void RBTree::leftRotate(Node* node)
      {
          Node* right = node->right;
          node->right = right->left;
      
          if (right->left != NULL)
              right->left->parent = node;
      
          right->parent = node->parent;
      
          if (node->parent == NULL)
              root = right;
          else if (node == node->parent->left)
              node->parent->left = right;
          else
              node->parent->right = right;
      
          right->left = node;
          node->parent = right;
      }
      
      //右旋函数
      void RBTree::rightRotate(Node* node)
      {
          Node* left = node->left;
          node->left = left->right;
      
          if (left->right != NULL)
              left->right->parent = node;
      
          left->parent = node->parent;
      
          if (node->parent == NULL)
              root = left;
          else if (node == node->parent->left)
              node->parent->left = left;
          else
              node->parent->right = left;
      
          left->right = node;
          node->parent = left;
      }
      
      //插入修复函数
      void RBTree::insertFixUp(Node* node)
      {
          Node* parent = NULL;
          Node* grandparent = NULL;
      
          while ((node->parent != NULL) && (node->parent->color == 0))
          {
              parent = node->parent;
              grandparent = parent->parent;
      
              if (parent == grandparent->left)
              {
                  Node* uncle = grandparent->right;
      
                  if (uncle != NULL && uncle->color == 0)
                  {
                      grandparent->color = 0;
                      parent->color = 1;
                      uncle->color = 1;
                      node = grandparent;
                  }
                  else
                  {
                      if (node == parent->right)
                      {
                          node = parent;
                          leftRotate(node);
                      }
      
                      parent = node->parent;
                      grandparent = parent->parent;
                      grandparent->color = 0;
                      parent->color = 1;
                      rightRotate(grandparent);
                  }
              }
              else
              {
                  Node* uncle = grandparent->left;
      
                  if (uncle != NULL && uncle->color == 0)
                  {
                      grandparent->color = 0;
                      parent->color = 1;
                      uncle->color = 1;
                      node = grandparent;
                  }
                  else
                  {
                      if (node == parent->left)
                      {
                          node = parent;
                          rightRotate(node);
                      }
      
                      parent = node->parent;
                      grandparent = parent->parent;
                      grandparent->color = 0;
                      parent->color = 1;
                      leftRotate(grandparent);
                  }
              }
          }
          root->color = 1;
      }
      
      //删除函数
      void RBTree::deleteNode(Node* node)
      {
          //定义临时节点
          Node* temp = node;
          Node* child;
          int temp_color = temp->color;
      
          if (node->left == NULL)
          {
              child = node->right;
              transplant(node, node->right);
          }
          else if (node->right == NULL)
          {
              child = node->left;
              transplant(node, node->left);
          }
          else
          {
              temp = minimum(node->right);
              temp_color = temp->color;
              child = temp->right;
              if (temp->parent == node)
              {
                  child->parent = temp;
              }
              else
              {
                  transplant(temp, temp->right);
                  temp->right = node->right;
                  temp->right->parent = temp;
              }
              transplant(node, temp);
              temp->left = node->left;
              temp->left->parent = temp;
              temp->color = node->color;
          }
          if (temp_color == 1)
          {
              deleteFixUp(child);
          }
      }
      
      //删除修复函数
      void RBTree::deleteFixUp(Node* node)
      {
          Node *parent, *sibling;
      
          while ((node != root) && (node->color == 1))
          {
              parent = node->parent;
              if (node == parent->left)
              {
                  sibling = parent->right;
                  if (sibling->color == 0)
                  {
                      sibling->color = 1;
                      parent->color = 0;
                      leftRotate(parent);
                      sibling = parent->right;
                  }
                  if ((sibling->left->color == 1) && (sibling->right->color == 1))
                  {
                      sibling->color = 0;
                      node = parent;
                  }
                  else
                  {
                      if (sibling->right->color == 1)
                      {
                          sibling->left->color = 1;
                          sibling->color = 0;
                          rightRotate(sibling);
                          sibling = parent->right;
                      }
                      sibling->color = parent->color;
                      parent->color = 1;
                      sibling->right->color = 1;
                      leftRotate(parent);
                      node = root;
                  }
              }
              else
              {
                  sibling = parent->left;
                  if (sibling->color == 0)
                  {
                      sibling->color = 1;
                      parent->color = 0;
                      rightRotate(parent);
                      sibling = parent->left;
                  }
                  if ((sibling->left->color == 1) && (sibling->right->color == 1))
                  {
                      sibling->color = 0;
                      node = parent;
                  }
                  else
                  {
                      if (sibling->left->color == 1)
                      {
                          sibling->right->color = 1;
                          sibling->color = 0;
                          leftRotate(sibling);
                          sibling = parent->left;
                      }
                      sibling->color = parent->color;
                      parent->color = 1;
                      sibling->left->color = 1;
                      rightRotate(parent);
                      node = root;
                  }
              }
          }
          node->color = 1;
      }
      

      @ChatGPT 请解释该代码

      ChatGPTC 1 条回复 最后回复
      0
      • E eatmelon

        ChatGPT 说:

        eatmelon说:

        请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

        #include 
        #include 
        
        //红黑树节点结构定义
        struct Node
        {
            int data;
            int color;
            Node* left;
            Node* right;
            Node* parent;
        };
        
        //红黑树类定义
        class RBTree
        {
        private:
            Node* root;
        
        public:
            RBTree();
            ~RBTree();
            void insert(Node* node);
            void deleteNode(Node* node);
            Node* search(int data);
            void leftRotate(Node* node);
            void rightRotate(Node* node);
            void insertFixUp(Node* node);
            void deleteFixUp(Node* node);
        };
        
        //构造函数
        RBTree::RBTree()
        {
            root = NULL;
        }
        
        //析构函数
        RBTree::~RBTree()
        {
            delete root;
            root = NULL;
        }
        
        //搜索函数
        Node* RBTree::search(int data)
        {
            Node* current = root;
        
            while (current != NULL && data != current->data)
            {
                if (data data)
                    current = current->left;
                else
                    current = current->right;
            }
        
            return current;
        }
        
        //插入函数
        void RBTree::insert(Node* node)
        {
            Node* current = root;
            Node* parent = NULL;
        
            while (current != NULL)
            {
                parent = current;
                if (node->data data)
                    current = current->left;
                else
                    current = current->right;
            }
        
            node->parent = parent;
        
            if (parent == NULL)
                root = node;
            else if (node->data data)
                parent->left = node;
            else
                parent->right = node;
        
            node->left = NULL;
            node->right = NULL;
            node->color = 0;
        
            insertFixUp(node);
        }
        
        //左旋函数
        void RBTree::leftRotate(Node* node)
        {
            Node* right = node->right;
            node->right = right->left;
        
            if (right->left != NULL)
                right->left->parent = node;
        
            right->parent = node->parent;
        
            if (node->parent == NULL)
                root = right;
            else if (node == node->parent->left)
                node->parent->left = right;
            else
                node->parent->right = right;
        
            right->left = node;
            node->parent = right;
        }
        
        //右旋函数
        void RBTree::rightRotate(Node* node)
        {
            Node* left = node->left;
            node->left = left->right;
        
            if (left->right != NULL)
                left->right->parent = node;
        
            left->parent = node->parent;
        
            if (node->parent == NULL)
                root = left;
            else if (node == node->parent->left)
                node->parent->left = left;
            else
                node->parent->right = left;
        
            left->right = node;
            node->parent = left;
        }
        
        //插入修复函数
        void RBTree::insertFixUp(Node* node)
        {
            Node* parent = NULL;
            Node* grandparent = NULL;
        
            while ((node->parent != NULL) && (node->parent->color == 0))
            {
                parent = node->parent;
                grandparent = parent->parent;
        
                if (parent == grandparent->left)
                {
                    Node* uncle = grandparent->right;
        
                    if (uncle != NULL && uncle->color == 0)
                    {
                        grandparent->color = 0;
                        parent->color = 1;
                        uncle->color = 1;
                        node = grandparent;
                    }
                    else
                    {
                        if (node == parent->right)
                        {
                            node = parent;
                            leftRotate(node);
                        }
        
                        parent = node->parent;
                        grandparent = parent->parent;
                        grandparent->color = 0;
                        parent->color = 1;
                        rightRotate(grandparent);
                    }
                }
                else
                {
                    Node* uncle = grandparent->left;
        
                    if (uncle != NULL && uncle->color == 0)
                    {
                        grandparent->color = 0;
                        parent->color = 1;
                        uncle->color = 1;
                        node = grandparent;
                    }
                    else
                    {
                        if (node == parent->left)
                        {
                            node = parent;
                            rightRotate(node);
                        }
        
                        parent = node->parent;
                        grandparent = parent->parent;
                        grandparent->color = 0;
                        parent->color = 1;
                        leftRotate(grandparent);
                    }
                }
            }
            root->color = 1;
        }
        
        //删除函数
        void RBTree::deleteNode(Node* node)
        {
            //定义临时节点
            Node* temp = node;
            Node* child;
            int temp_color = temp->color;
        
            if (node->left == NULL)
            {
                child = node->right;
                transplant(node, node->right);
            }
            else if (node->right == NULL)
            {
                child = node->left;
                transplant(node, node->left);
            }
            else
            {
                temp = minimum(node->right);
                temp_color = temp->color;
                child = temp->right;
                if (temp->parent == node)
                {
                    child->parent = temp;
                }
                else
                {
                    transplant(temp, temp->right);
                    temp->right = node->right;
                    temp->right->parent = temp;
                }
                transplant(node, temp);
                temp->left = node->left;
                temp->left->parent = temp;
                temp->color = node->color;
            }
            if (temp_color == 1)
            {
                deleteFixUp(child);
            }
        }
        
        //删除修复函数
        void RBTree::deleteFixUp(Node* node)
        {
            Node *parent, *sibling;
        
            while ((node != root) && (node->color == 1))
            {
                parent = node->parent;
                if (node == parent->left)
                {
                    sibling = parent->right;
                    if (sibling->color == 0)
                    {
                        sibling->color = 1;
                        parent->color = 0;
                        leftRotate(parent);
                        sibling = parent->right;
                    }
                    if ((sibling->left->color == 1) && (sibling->right->color == 1))
                    {
                        sibling->color = 0;
                        node = parent;
                    }
                    else
                    {
                        if (sibling->right->color == 1)
                        {
                            sibling->left->color = 1;
                            sibling->color = 0;
                            rightRotate(sibling);
                            sibling = parent->right;
                        }
                        sibling->color = parent->color;
                        parent->color = 1;
                        sibling->right->color = 1;
                        leftRotate(parent);
                        node = root;
                    }
                }
                else
                {
                    sibling = parent->left;
                    if (sibling->color == 0)
                    {
                        sibling->color = 1;
                        parent->color = 0;
                        rightRotate(parent);
                        sibling = parent->left;
                    }
                    if ((sibling->left->color == 1) && (sibling->right->color == 1))
                    {
                        sibling->color = 0;
                        node = parent;
                    }
                    else
                    {
                        if (sibling->left->color == 1)
                        {
                            sibling->right->color = 1;
                            sibling->color = 0;
                            leftRotate(sibling);
                            sibling = parent->left;
                        }
                        sibling->color = parent->color;
                        parent->color = 1;
                        sibling->left->color = 1;
                        rightRotate(parent);
                        node = root;
                    }
                }
            }
            node->color = 1;
        }
        

        @ChatGPT 请解释该代码

        ChatGPTC 离线
        ChatGPTC 离线
        ChatGPT
        写于 最后由 编辑
        #1501

        eatmelon说:

        ChatGPT 说:

        eatmelon说:

        请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

        #include 
        #include 
        
        //红黑树节点结构定义
        struct Node
        {
            int data;
            int color;
            Node* left;
            Node* right;
            Node* parent;
        };
        
        //红黑树类定义
        class RBTree
        {
        private:
            Node* root;
        
        public:
            RBTree();
            ~RBTree();
            void insert(Node* node);
            void deleteNode(Node* node);
            Node* search(int data);
            void leftRotate(Node* node);
            void rightRotate(Node* node);
            void insertFixUp(Node* node);
            void deleteFixUp(Node* node);
        };
        
        //构造函数
        RBTree::RBTree()
        {
            root = NULL;
        }
        
        //析构函数
        RBTree::~RBTree()
        {
            delete root;
            root = NULL;
        }
        
        //搜索函数
        Node* RBTree::search(int data)
        {
            Node* current = root;
        
            while (current != NULL && data != current->data)
            {
                if (data data)
                    current = current->left;
                else
                    current = current->right;
            }
        
            return current;
        }
        
        //插入函数
        void RBTree::insert(Node* node)
        {
            Node* current = root;
            Node* parent = NULL;
        
            while (current != NULL)
            {
                parent = current;
                if (node->data data)
                    current = current->left;
                else
                    current = current->right;
            }
        
            node->parent = parent;
        
            if (parent == NULL)
                root = node;
            else if (node->data data)
                parent->left = node;
            else
                parent->right = node;
        
            node->left = NULL;
            node->right = NULL;
            node->color = 0;
        
            insertFixUp(node);
        }
        
        //左旋函数
        void RBTree::leftRotate(Node* node)
        {
            Node* right = node->right;
            node->right = right->left;
        
            if (right->left != NULL)
                right->left->parent = node;
        
            right->parent = node->parent;
        
            if (node->parent == NULL)
                root = right;
            else if (node == node->parent->left)
                node->parent->left = right;
            else
                node->parent->right = right;
        
            right->left = node;
            node->parent = right;
        }
        
        //右旋函数
        void RBTree::rightRotate(Node* node)
        {
            Node* left = node->left;
            node->left = left->right;
        
            if (left->right != NULL)
                left->right->parent = node;
        
            left->parent = node->parent;
        
            if (node->parent == NULL)
                root = left;
            else if (node == node->parent->left)
                node->parent->left = left;
            else
                node->parent->right = left;
        
            left->right = node;
            node->parent = left;
        }
        
        //插入修复函数
        void RBTree::insertFixUp(Node* node)
        {
            Node* parent = NULL;
            Node* grandparent = NULL;
        
            while ((node->parent != NULL) && (node->parent->color == 0))
            {
                parent = node->parent;
                grandparent = parent->parent;
        
                if (parent == grandparent->left)
                {
                    Node* uncle = grandparent->right;
        
                    if (uncle != NULL && uncle->color == 0)
                    {
                        grandparent->color = 0;
                        parent->color = 1;
                        uncle->color = 1;
                        node = grandparent;
                    }
                    else
                    {
                        if (node == parent->right)
                        {
                            node = parent;
                            leftRotate(node);
                        }
        
                        parent = node->parent;
                        grandparent = parent->parent;
                        grandparent->color = 0;
                        parent->color = 1;
                        rightRotate(grandparent);
                    }
                }
                else
                {
                    Node* uncle = grandparent->left;
        
                    if (uncle != NULL && uncle->color == 0)
                    {
                        grandparent->color = 0;
                        parent->color = 1;
                        uncle->color = 1;
                        node = grandparent;
                    }
                    else
                    {
                        if (node == parent->left)
                        {
                            node = parent;
                            rightRotate(node);
                        }
        
                        parent = node->parent;
                        grandparent = parent->parent;
                        grandparent->color = 0;
                        parent->color = 1;
                        leftRotate(grandparent);
                    }
                }
            }
            root->color = 1;
        }
        
        //删除函数
        void RBTree::deleteNode(Node* node)
        {
            //定义临时节点
            Node* temp = node;
            Node* child;
            int temp_color = temp->color;
        
            if (node->left == NULL)
            {
                child = node->right;
                transplant(node, node->right);
            }
            else if (node->right == NULL)
            {
                child = node->left;
                transplant(node, node->left);
            }
            else
            {
                temp = minimum(node->right);
                temp_color = temp->color;
                child = temp->right;
                if (temp->parent == node)
                {
                    child->parent = temp;
                }
                else
                {
                    transplant(temp, temp->right);
                    temp->right = node->right;
                    temp->right->parent = temp;
                }
                transplant(node, temp);
                temp->left = node->left;
                temp->left->parent = temp;
                temp->color = node->color;
            }
            if (temp_color == 1)
            {
                deleteFixUp(child);
            }
        }
        
        //删除修复函数
        void RBTree::deleteFixUp(Node* node)
        {
            Node *parent, *sibling;
        
            while ((node != root) && (node->color == 1))
            {
                parent = node->parent;
                if (node == parent->left)
                {
                    sibling = parent->right;
                    if (sibling->color == 0)
                    {
                        sibling->color = 1;
                        parent->color = 0;
                        leftRotate(parent);
                        sibling = parent->right;
                    }
                    if ((sibling->left->color == 1) && (sibling->right->color == 1))
                    {
                        sibling->color = 0;
                        node = parent;
                    }
                    else
                    {
                        if (sibling->right->color == 1)
                        {
                            sibling->left->color = 1;
                            sibling->color = 0;
                            rightRotate(sibling);
                            sibling = parent->right;
                        }
                        sibling->color = parent->color;
                        parent->color = 1;
                        sibling->right->color = 1;
                        leftRotate(parent);
                        node = root;
                    }
                }
                else
                {
                    sibling = parent->left;
                    if (sibling->color == 0)
                    {
                        sibling->color = 1;
                        parent->color = 0;
                        rightRotate(parent);
                        sibling = parent->left;
                    }
                    if ((sibling->left->color == 1) && (sibling->right->color == 1))
                    {
                        sibling->color = 0;
                        node = parent;
                    }
                    else
                    {
                        if (sibling->left->color == 1)
                        {
                            sibling->right->color = 1;
                            sibling->color = 0;
                            leftRotate(sibling);
                            sibling = parent->left;
                        }
                        sibling->color = parent->color;
                        parent->color = 1;
                        sibling->left->color = 1;
                        rightRotate(parent);
                        node = root;
                    }
                }
            }
            node->color = 1;
        }
        

        请解释该代码

        哎呀, ChatGPT 出问题了, 站长快来修复一下~ @malaohu

        帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

        1 条回复 最后回复
        0
        • ChatGPTC ChatGPT

          eatmelon说:

          请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

          #include 
          #include 
          
          //红黑树节点结构定义
          struct Node
          {
              int data;
              int color;
              Node* left;
              Node* right;
              Node* parent;
          };
          
          //红黑树类定义
          class RBTree
          {
          private:
              Node* root;
          
          public:
              RBTree();
              ~RBTree();
              void insert(Node* node);
              void deleteNode(Node* node);
              Node* search(int data);
              void leftRotate(Node* node);
              void rightRotate(Node* node);
              void insertFixUp(Node* node);
              void deleteFixUp(Node* node);
          };
          
          //构造函数
          RBTree::RBTree()
          {
              root = NULL;
          }
          
          //析构函数
          RBTree::~RBTree()
          {
              delete root;
              root = NULL;
          }
          
          //搜索函数
          Node* RBTree::search(int data)
          {
              Node* current = root;
          
              while (current != NULL && data != current->data)
              {
                  if (data data)
                      current = current->left;
                  else
                      current = current->right;
              }
          
              return current;
          }
          
          //插入函数
          void RBTree::insert(Node* node)
          {
              Node* current = root;
              Node* parent = NULL;
          
              while (current != NULL)
              {
                  parent = current;
                  if (node->data data)
                      current = current->left;
                  else
                      current = current->right;
              }
          
              node->parent = parent;
          
              if (parent == NULL)
                  root = node;
              else if (node->data data)
                  parent->left = node;
              else
                  parent->right = node;
          
              node->left = NULL;
              node->right = NULL;
              node->color = 0;
          
              insertFixUp(node);
          }
          
          //左旋函数
          void RBTree::leftRotate(Node* node)
          {
              Node* right = node->right;
              node->right = right->left;
          
              if (right->left != NULL)
                  right->left->parent = node;
          
              right->parent = node->parent;
          
              if (node->parent == NULL)
                  root = right;
              else if (node == node->parent->left)
                  node->parent->left = right;
              else
                  node->parent->right = right;
          
              right->left = node;
              node->parent = right;
          }
          
          //右旋函数
          void RBTree::rightRotate(Node* node)
          {
              Node* left = node->left;
              node->left = left->right;
          
              if (left->right != NULL)
                  left->right->parent = node;
          
              left->parent = node->parent;
          
              if (node->parent == NULL)
                  root = left;
              else if (node == node->parent->left)
                  node->parent->left = left;
              else
                  node->parent->right = left;
          
              left->right = node;
              node->parent = left;
          }
          
          //插入修复函数
          void RBTree::insertFixUp(Node* node)
          {
              Node* parent = NULL;
              Node* grandparent = NULL;
          
              while ((node->parent != NULL) && (node->parent->color == 0))
              {
                  parent = node->parent;
                  grandparent = parent->parent;
          
                  if (parent == grandparent->left)
                  {
                      Node* uncle = grandparent->right;
          
                      if (uncle != NULL && uncle->color == 0)
                      {
                          grandparent->color = 0;
                          parent->color = 1;
                          uncle->color = 1;
                          node = grandparent;
                      }
                      else
                      {
                          if (node == parent->right)
                          {
                              node = parent;
                              leftRotate(node);
                          }
          
                          parent = node->parent;
                          grandparent = parent->parent;
                          grandparent->color = 0;
                          parent->color = 1;
                          rightRotate(grandparent);
                      }
                  }
                  else
                  {
                      Node* uncle = grandparent->left;
          
                      if (uncle != NULL && uncle->color == 0)
                      {
                          grandparent->color = 0;
                          parent->color = 1;
                          uncle->color = 1;
                          node = grandparent;
                      }
                      else
                      {
                          if (node == parent->left)
                          {
                              node = parent;
                              rightRotate(node);
                          }
          
                          parent = node->parent;
                          grandparent = parent->parent;
                          grandparent->color = 0;
                          parent->color = 1;
                          leftRotate(grandparent);
                      }
                  }
              }
              root->color = 1;
          }
          
          //删除函数
          void RBTree::deleteNode(Node* node)
          {
              //定义临时节点
              Node* temp = node;
              Node* child;
              int temp_color = temp->color;
          
              if (node->left == NULL)
              {
                  child = node->right;
                  transplant(node, node->right);
              }
              else if (node->right == NULL)
              {
                  child = node->left;
                  transplant(node, node->left);
              }
              else
              {
                  temp = minimum(node->right);
                  temp_color = temp->color;
                  child = temp->right;
                  if (temp->parent == node)
                  {
                      child->parent = temp;
                  }
                  else
                  {
                      transplant(temp, temp->right);
                      temp->right = node->right;
                      temp->right->parent = temp;
                  }
                  transplant(node, temp);
                  temp->left = node->left;
                  temp->left->parent = temp;
                  temp->color = node->color;
              }
              if (temp_color == 1)
              {
                  deleteFixUp(child);
              }
          }
          
          //删除修复函数
          void RBTree::deleteFixUp(Node* node)
          {
              Node *parent, *sibling;
          
              while ((node != root) && (node->color == 1))
              {
                  parent = node->parent;
                  if (node == parent->left)
                  {
                      sibling = parent->right;
                      if (sibling->color == 0)
                      {
                          sibling->color = 1;
                          parent->color = 0;
                          leftRotate(parent);
                          sibling = parent->right;
                      }
                      if ((sibling->left->color == 1) && (sibling->right->color == 1))
                      {
                          sibling->color = 0;
                          node = parent;
                      }
                      else
                      {
                          if (sibling->right->color == 1)
                          {
                              sibling->left->color = 1;
                              sibling->color = 0;
                              rightRotate(sibling);
                              sibling = parent->right;
                          }
                          sibling->color = parent->color;
                          parent->color = 1;
                          sibling->right->color = 1;
                          leftRotate(parent);
                          node = root;
                      }
                  }
                  else
                  {
                      sibling = parent->left;
                      if (sibling->color == 0)
                      {
                          sibling->color = 1;
                          parent->color = 0;
                          rightRotate(parent);
                          sibling = parent->left;
                      }
                      if ((sibling->left->color == 1) && (sibling->right->color == 1))
                      {
                          sibling->color = 0;
                          node = parent;
                      }
                      else
                      {
                          if (sibling->left->color == 1)
                          {
                              sibling->right->color = 1;
                              sibling->color = 0;
                              leftRotate(sibling);
                              sibling = parent->left;
                          }
                          sibling->color = parent->color;
                          parent->color = 1;
                          sibling->left->color = 1;
                          rightRotate(parent);
                          node = root;
                      }
                  }
              }
              node->color = 1;
          }
          
          E 离线
          E 离线
          eatmelon
          🍌
          写于 最后由 编辑
          #1502

          ChatGPT 说:

          eatmelon说:

          请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

          #include 
          #include 
          
          //红黑树节点结构定义
          struct Node
          {
              int data;
              int color;
              Node* left;
              Node* right;
              Node* parent;
          };
          
          //红黑树类定义
          class RBTree
          {
          private:
              Node* root;
          
          public:
              RBTree();
              ~RBTree();
              void insert(Node* node);
              void deleteNode(Node* node);
              Node* search(int data);
              void leftRotate(Node* node);
              void rightRotate(Node* node);
              void insertFixUp(Node* node);
              void deleteFixUp(Node* node);
          };
          
          //构造函数
          RBTree::RBTree()
          {
              root = NULL;
          }
          
          //析构函数
          RBTree::~RBTree()
          {
              delete root;
              root = NULL;
          }
          
          //搜索函数
          Node* RBTree::search(int data)
          {
              Node* current = root;
          
              while (current != NULL && data != current->data)
              {
                  if (data data)
                      current = current->left;
                  else
                      current = current->right;
              }
          
              return current;
          }
          
          //插入函数
          void RBTree::insert(Node* node)
          {
              Node* current = root;
              Node* parent = NULL;
          
              while (current != NULL)
              {
                  parent = current;
                  if (node->data data)
                      current = current->left;
                  else
                      current = current->right;
              }
          
              node->parent = parent;
          
              if (parent == NULL)
                  root = node;
              else if (node->data data)
                  parent->left = node;
              else
                  parent->right = node;
          
              node->left = NULL;
              node->right = NULL;
              node->color = 0;
          
              insertFixUp(node);
          }
          
          //左旋函数
          void RBTree::leftRotate(Node* node)
          {
              Node* right = node->right;
              node->right = right->left;
          
              if (right->left != NULL)
                  right->left->parent = node;
          
              right->parent = node->parent;
          
              if (node->parent == NULL)
                  root = right;
              else if (node == node->parent->left)
                  node->parent->left = right;
              else
                  node->parent->right = right;
          
              right->left = node;
              node->parent = right;
          }
          
          //右旋函数
          void RBTree::rightRotate(Node* node)
          {
              Node* left = node->left;
              node->left = left->right;
          
              if (left->right != NULL)
                  left->right->parent = node;
          
              left->parent = node->parent;
          
              if (node->parent == NULL)
                  root = left;
              else if (node == node->parent->left)
                  node->parent->left = left;
              else
                  node->parent->right = left;
          
              left->right = node;
              node->parent = left;
          }
          
          //插入修复函数
          void RBTree::insertFixUp(Node* node)
          {
              Node* parent = NULL;
              Node* grandparent = NULL;
          
              while ((node->parent != NULL) && (node->parent->color == 0))
              {
                  parent = node->parent;
                  grandparent = parent->parent;
          
                  if (parent == grandparent->left)
                  {
                      Node* uncle = grandparent->right;
          
                      if (uncle != NULL && uncle->color == 0)
                      {
                          grandparent->color = 0;
                          parent->color = 1;
                          uncle->color = 1;
                          node = grandparent;
                      }
                      else
                      {
                          if (node == parent->right)
                          {
                              node = parent;
                              leftRotate(node);
                          }
          
                          parent = node->parent;
                          grandparent = parent->parent;
                          grandparent->color = 0;
                          parent->color = 1;
                          rightRotate(grandparent);
                      }
                  }
                  else
                  {
                      Node* uncle = grandparent->left;
          
                      if (uncle != NULL && uncle->color == 0)
                      {
                          grandparent->color = 0;
                          parent->color = 1;
                          uncle->color = 1;
                          node = grandparent;
                      }
                      else
                      {
                          if (node == parent->left)
                          {
                              node = parent;
                              rightRotate(node);
                          }
          
                          parent = node->parent;
                          grandparent = parent->parent;
                          grandparent->color = 0;
                          parent->color = 1;
                          leftRotate(grandparent);
                      }
                  }
              }
              root->color = 1;
          }
          
          //删除函数
          void RBTree::deleteNode(Node* node)
          {
              //定义临时节点
              Node* temp = node;
              Node* child;
              int temp_color = temp->color;
          
              if (node->left == NULL)
              {
                  child = node->right;
                  transplant(node, node->right);
              }
              else if (node->right == NULL)
              {
                  child = node->left;
                  transplant(node, node->left);
              }
              else
              {
                  temp = minimum(node->right);
                  temp_color = temp->color;
                  child = temp->right;
                  if (temp->parent == node)
                  {
                      child->parent = temp;
                  }
                  else
                  {
                      transplant(temp, temp->right);
                      temp->right = node->right;
                      temp->right->parent = temp;
                  }
                  transplant(node, temp);
                  temp->left = node->left;
                  temp->left->parent = temp;
                  temp->color = node->color;
              }
              if (temp_color == 1)
              {
                  deleteFixUp(child);
              }
          }
          
          //删除修复函数
          void RBTree::deleteFixUp(Node* node)
          {
              Node *parent, *sibling;
          
              while ((node != root) && (node->color == 1))
              {
                  parent = node->parent;
                  if (node == parent->left)
                  {
                      sibling = parent->right;
                      if (sibling->color == 0)
                      {
                          sibling->color = 1;
                          parent->color = 0;
                          leftRotate(parent);
                          sibling = parent->right;
                      }
                      if ((sibling->left->color == 1) && (sibling->right->color == 1))
                      {
                          sibling->color = 0;
                          node = parent;
                      }
                      else
                      {
                          if (sibling->right->color == 1)
                          {
                              sibling->left->color = 1;
                              sibling->color = 0;
                              rightRotate(sibling);
                              sibling = parent->right;
                          }
                          sibling->color = parent->color;
                          parent->color = 1;
                          sibling->right->color = 1;
                          leftRotate(parent);
                          node = root;
                      }
                  }
                  else
                  {
                      sibling = parent->left;
                      if (sibling->color == 0)
                      {
                          sibling->color = 1;
                          parent->color = 0;
                          rightRotate(parent);
                          sibling = parent->left;
                      }
                      if ((sibling->left->color == 1) && (sibling->right->color == 1))
                      {
                          sibling->color = 0;
                          node = parent;
                      }
                      else
                      {
                          if (sibling->left->color == 1)
                          {
                              sibling->right->color = 1;
                              sibling->color = 0;
                              leftRotate(sibling);
                              sibling = parent->left;
                          }
                          sibling->color = parent->color;
                          parent->color = 1;
                          sibling->left->color = 1;
                          rightRotate(parent);
                          node = root;
                      }
                  }
              }
              node->color = 1;
          }
          

          @ChatGPT 请详尽的解释该代码

          ChatGPTC 1 条回复 最后回复
          0
          • E eatmelon

            ChatGPT 说:

            eatmelon说:

            请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

            #include 
            #include 
            
            //红黑树节点结构定义
            struct Node
            {
                int data;
                int color;
                Node* left;
                Node* right;
                Node* parent;
            };
            
            //红黑树类定义
            class RBTree
            {
            private:
                Node* root;
            
            public:
                RBTree();
                ~RBTree();
                void insert(Node* node);
                void deleteNode(Node* node);
                Node* search(int data);
                void leftRotate(Node* node);
                void rightRotate(Node* node);
                void insertFixUp(Node* node);
                void deleteFixUp(Node* node);
            };
            
            //构造函数
            RBTree::RBTree()
            {
                root = NULL;
            }
            
            //析构函数
            RBTree::~RBTree()
            {
                delete root;
                root = NULL;
            }
            
            //搜索函数
            Node* RBTree::search(int data)
            {
                Node* current = root;
            
                while (current != NULL && data != current->data)
                {
                    if (data data)
                        current = current->left;
                    else
                        current = current->right;
                }
            
                return current;
            }
            
            //插入函数
            void RBTree::insert(Node* node)
            {
                Node* current = root;
                Node* parent = NULL;
            
                while (current != NULL)
                {
                    parent = current;
                    if (node->data data)
                        current = current->left;
                    else
                        current = current->right;
                }
            
                node->parent = parent;
            
                if (parent == NULL)
                    root = node;
                else if (node->data data)
                    parent->left = node;
                else
                    parent->right = node;
            
                node->left = NULL;
                node->right = NULL;
                node->color = 0;
            
                insertFixUp(node);
            }
            
            //左旋函数
            void RBTree::leftRotate(Node* node)
            {
                Node* right = node->right;
                node->right = right->left;
            
                if (right->left != NULL)
                    right->left->parent = node;
            
                right->parent = node->parent;
            
                if (node->parent == NULL)
                    root = right;
                else if (node == node->parent->left)
                    node->parent->left = right;
                else
                    node->parent->right = right;
            
                right->left = node;
                node->parent = right;
            }
            
            //右旋函数
            void RBTree::rightRotate(Node* node)
            {
                Node* left = node->left;
                node->left = left->right;
            
                if (left->right != NULL)
                    left->right->parent = node;
            
                left->parent = node->parent;
            
                if (node->parent == NULL)
                    root = left;
                else if (node == node->parent->left)
                    node->parent->left = left;
                else
                    node->parent->right = left;
            
                left->right = node;
                node->parent = left;
            }
            
            //插入修复函数
            void RBTree::insertFixUp(Node* node)
            {
                Node* parent = NULL;
                Node* grandparent = NULL;
            
                while ((node->parent != NULL) && (node->parent->color == 0))
                {
                    parent = node->parent;
                    grandparent = parent->parent;
            
                    if (parent == grandparent->left)
                    {
                        Node* uncle = grandparent->right;
            
                        if (uncle != NULL && uncle->color == 0)
                        {
                            grandparent->color = 0;
                            parent->color = 1;
                            uncle->color = 1;
                            node = grandparent;
                        }
                        else
                        {
                            if (node == parent->right)
                            {
                                node = parent;
                                leftRotate(node);
                            }
            
                            parent = node->parent;
                            grandparent = parent->parent;
                            grandparent->color = 0;
                            parent->color = 1;
                            rightRotate(grandparent);
                        }
                    }
                    else
                    {
                        Node* uncle = grandparent->left;
            
                        if (uncle != NULL && uncle->color == 0)
                        {
                            grandparent->color = 0;
                            parent->color = 1;
                            uncle->color = 1;
                            node = grandparent;
                        }
                        else
                        {
                            if (node == parent->left)
                            {
                                node = parent;
                                rightRotate(node);
                            }
            
                            parent = node->parent;
                            grandparent = parent->parent;
                            grandparent->color = 0;
                            parent->color = 1;
                            leftRotate(grandparent);
                        }
                    }
                }
                root->color = 1;
            }
            
            //删除函数
            void RBTree::deleteNode(Node* node)
            {
                //定义临时节点
                Node* temp = node;
                Node* child;
                int temp_color = temp->color;
            
                if (node->left == NULL)
                {
                    child = node->right;
                    transplant(node, node->right);
                }
                else if (node->right == NULL)
                {
                    child = node->left;
                    transplant(node, node->left);
                }
                else
                {
                    temp = minimum(node->right);
                    temp_color = temp->color;
                    child = temp->right;
                    if (temp->parent == node)
                    {
                        child->parent = temp;
                    }
                    else
                    {
                        transplant(temp, temp->right);
                        temp->right = node->right;
                        temp->right->parent = temp;
                    }
                    transplant(node, temp);
                    temp->left = node->left;
                    temp->left->parent = temp;
                    temp->color = node->color;
                }
                if (temp_color == 1)
                {
                    deleteFixUp(child);
                }
            }
            
            //删除修复函数
            void RBTree::deleteFixUp(Node* node)
            {
                Node *parent, *sibling;
            
                while ((node != root) && (node->color == 1))
                {
                    parent = node->parent;
                    if (node == parent->left)
                    {
                        sibling = parent->right;
                        if (sibling->color == 0)
                        {
                            sibling->color = 1;
                            parent->color = 0;
                            leftRotate(parent);
                            sibling = parent->right;
                        }
                        if ((sibling->left->color == 1) && (sibling->right->color == 1))
                        {
                            sibling->color = 0;
                            node = parent;
                        }
                        else
                        {
                            if (sibling->right->color == 1)
                            {
                                sibling->left->color = 1;
                                sibling->color = 0;
                                rightRotate(sibling);
                                sibling = parent->right;
                            }
                            sibling->color = parent->color;
                            parent->color = 1;
                            sibling->right->color = 1;
                            leftRotate(parent);
                            node = root;
                        }
                    }
                    else
                    {
                        sibling = parent->left;
                        if (sibling->color == 0)
                        {
                            sibling->color = 1;
                            parent->color = 0;
                            rightRotate(parent);
                            sibling = parent->left;
                        }
                        if ((sibling->left->color == 1) && (sibling->right->color == 1))
                        {
                            sibling->color = 0;
                            node = parent;
                        }
                        else
                        {
                            if (sibling->left->color == 1)
                            {
                                sibling->right->color = 1;
                                sibling->color = 0;
                                leftRotate(sibling);
                                sibling = parent->left;
                            }
                            sibling->color = parent->color;
                            parent->color = 1;
                            sibling->left->color = 1;
                            rightRotate(parent);
                            node = root;
                        }
                    }
                }
                node->color = 1;
            }
            

            @ChatGPT 请详尽的解释该代码

            ChatGPTC 离线
            ChatGPTC 离线
            ChatGPT
            写于 最后由 编辑
            #1503

            eatmelon说:

            ChatGPT 说:

            eatmelon说:

            请基于红黑树技术写出一段搜索树,语言为C++,不得使用stl标准库

            #include 
            #include 
            
            //红黑树节点结构定义
            struct Node
            {
                int data;
                int color;
                Node* left;
                Node* right;
                Node* parent;
            };
            
            //红黑树类定义
            class RBTree
            {
            private:
                Node* root;
            
            public:
                RBTree();
                ~RBTree();
                void insert(Node* node);
                void deleteNode(Node* node);
                Node* search(int data);
                void leftRotate(Node* node);
                void rightRotate(Node* node);
                void insertFixUp(Node* node);
                void deleteFixUp(Node* node);
            };
            
            //构造函数
            RBTree::RBTree()
            {
                root = NULL;
            }
            
            //析构函数
            RBTree::~RBTree()
            {
                delete root;
                root = NULL;
            }
            
            //搜索函数
            Node* RBTree::search(int data)
            {
                Node* current = root;
            
                while (current != NULL && data != current->data)
                {
                    if (data data)
                        current = current->left;
                    else
                        current = current->right;
                }
            
                return current;
            }
            
            //插入函数
            void RBTree::insert(Node* node)
            {
                Node* current = root;
                Node* parent = NULL;
            
                while (current != NULL)
                {
                    parent = current;
                    if (node->data data)
                        current = current->left;
                    else
                        current = current->right;
                }
            
                node->parent = parent;
            
                if (parent == NULL)
                    root = node;
                else if (node->data data)
                    parent->left = node;
                else
                    parent->right = node;
            
                node->left = NULL;
                node->right = NULL;
                node->color = 0;
            
                insertFixUp(node);
            }
            
            //左旋函数
            void RBTree::leftRotate(Node* node)
            {
                Node* right = node->right;
                node->right = right->left;
            
                if (right->left != NULL)
                    right->left->parent = node;
            
                right->parent = node->parent;
            
                if (node->parent == NULL)
                    root = right;
                else if (node == node->parent->left)
                    node->parent->left = right;
                else
                    node->parent->right = right;
            
                right->left = node;
                node->parent = right;
            }
            
            //右旋函数
            void RBTree::rightRotate(Node* node)
            {
                Node* left = node->left;
                node->left = left->right;
            
                if (left->right != NULL)
                    left->right->parent = node;
            
                left->parent = node->parent;
            
                if (node->parent == NULL)
                    root = left;
                else if (node == node->parent->left)
                    node->parent->left = left;
                else
                    node->parent->right = left;
            
                left->right = node;
                node->parent = left;
            }
            
            //插入修复函数
            void RBTree::insertFixUp(Node* node)
            {
                Node* parent = NULL;
                Node* grandparent = NULL;
            
                while ((node->parent != NULL) && (node->parent->color == 0))
                {
                    parent = node->parent;
                    grandparent = parent->parent;
            
                    if (parent == grandparent->left)
                    {
                        Node* uncle = grandparent->right;
            
                        if (uncle != NULL && uncle->color == 0)
                        {
                            grandparent->color = 0;
                            parent->color = 1;
                            uncle->color = 1;
                            node = grandparent;
                        }
                        else
                        {
                            if (node == parent->right)
                            {
                                node = parent;
                                leftRotate(node);
                            }
            
                            parent = node->parent;
                            grandparent = parent->parent;
                            grandparent->color = 0;
                            parent->color = 1;
                            rightRotate(grandparent);
                        }
                    }
                    else
                    {
                        Node* uncle = grandparent->left;
            
                        if (uncle != NULL && uncle->color == 0)
                        {
                            grandparent->color = 0;
                            parent->color = 1;
                            uncle->color = 1;
                            node = grandparent;
                        }
                        else
                        {
                            if (node == parent->left)
                            {
                                node = parent;
                                rightRotate(node);
                            }
            
                            parent = node->parent;
                            grandparent = parent->parent;
                            grandparent->color = 0;
                            parent->color = 1;
                            leftRotate(grandparent);
                        }
                    }
                }
                root->color = 1;
            }
            
            //删除函数
            void RBTree::deleteNode(Node* node)
            {
                //定义临时节点
                Node* temp = node;
                Node* child;
                int temp_color = temp->color;
            
                if (node->left == NULL)
                {
                    child = node->right;
                    transplant(node, node->right);
                }
                else if (node->right == NULL)
                {
                    child = node->left;
                    transplant(node, node->left);
                }
                else
                {
                    temp = minimum(node->right);
                    temp_color = temp->color;
                    child = temp->right;
                    if (temp->parent == node)
                    {
                        child->parent = temp;
                    }
                    else
                    {
                        transplant(temp, temp->right);
                        temp->right = node->right;
                        temp->right->parent = temp;
                    }
                    transplant(node, temp);
                    temp->left = node->left;
                    temp->left->parent = temp;
                    temp->color = node->color;
                }
                if (temp_color == 1)
                {
                    deleteFixUp(child);
                }
            }
            
            //删除修复函数
            void RBTree::deleteFixUp(Node* node)
            {
                Node *parent, *sibling;
            
                while ((node != root) && (node->color == 1))
                {
                    parent = node->parent;
                    if (node == parent->left)
                    {
                        sibling = parent->right;
                        if (sibling->color == 0)
                        {
                            sibling->color = 1;
                            parent->color = 0;
                            leftRotate(parent);
                            sibling = parent->right;
                        }
                        if ((sibling->left->color == 1) && (sibling->right->color == 1))
                        {
                            sibling->color = 0;
                            node = parent;
                        }
                        else
                        {
                            if (sibling->right->color == 1)
                            {
                                sibling->left->color = 1;
                                sibling->color = 0;
                                rightRotate(sibling);
                                sibling = parent->right;
                            }
                            sibling->color = parent->color;
                            parent->color = 1;
                            sibling->right->color = 1;
                            leftRotate(parent);
                            node = root;
                        }
                    }
                    else
                    {
                        sibling = parent->left;
                        if (sibling->color == 0)
                        {
                            sibling->color = 1;
                            parent->color = 0;
                            rightRotate(parent);
                            sibling = parent->left;
                        }
                        if ((sibling->left->color == 1) && (sibling->right->color == 1))
                        {
                            sibling->color = 0;
                            node = parent;
                        }
                        else
                        {
                            if (sibling->left->color == 1)
                            {
                                sibling->right->color = 1;
                                sibling->color = 0;
                                leftRotate(sibling);
                                sibling = parent->left;
                            }
                            sibling->color = parent->color;
                            parent->color = 1;
                            sibling->left->color = 1;
                            rightRotate(parent);
                            node = root;
                        }
                    }
                }
                node->color = 1;
            }
            

            请详尽的解释该代码

            哎呀, ChatGPT 出问题了, 站长快来修复一下~ @malaohu

            帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

            1 条回复 最后回复
            0
            • E 离线
              E 离线
              eatmelon
              🍌
              写于 最后由 编辑
              #1504

              @ChatGPT 1+1等于几?

              ChatGPTC 1 条回复 最后回复
              0
              • E eatmelon

                @ChatGPT 1+1等于几?

                ChatGPTC 离线
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                ChatGPT
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                #1505

                eatmelon说:

                1+1等于几?

                1+1等于2。

                帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

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                  #1506

                  @ChatGPT 请给出解三元二次方程组的方法

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                  • E eatmelon

                    @ChatGPT 请给出解三元二次方程组的方法

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                    #1507

                    eatmelon说:

                    请给出解三元二次方程组的方法

                    解三元二次方程组的方法:

                    1. 首先将三元二次方程组化为一元二次方程组,即将三元一次方程组化简为三个一元二次方程;

                    2. 解三个一元二次方程,求出三个未知数的值;

                    3. 将三个未知数的值代入原三元一次方程组,验证是否满足;

                    4. 如果满足,则有解,否则无解。

                    帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

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                      #1508

                      @ChatGPT 请给出解二元三次方程组的方法

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                      • E eatmelon

                        @ChatGPT 请给出解二元三次方程组的方法

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                        #1509

                        eatmelon说:

                        请给出解二元三次方程组的方法

                        解二元三次方程组的一般步骤如下:

                        1.将方程组消元,将其化为只有两个未知数的形式;

                        2.求解方程组的两个解,可以采用求根公式或者对数几何法;

                        3.检查结果,将解带入原方程组中,检查原方程组是否满足。

                        帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

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                          #1510

                          @ChatGPT 请给出解一元三次方程的求根公式

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                          • E eatmelon

                            @ChatGPT 请给出解一元三次方程的求根公式

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                            #1511

                            eatmelon说:

                            请给出解一元三次方程的求根公式

                            解:设一元三次方程为:ax³ + bx² + cx + d = 0

                            则求根公式为:

                            x = [−b ± √(b²−3ac) ]/ (3a) ± (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2

                            帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

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                            • ChatGPTC ChatGPT

                              eatmelon说:

                              请给出解一元三次方程的求根公式

                              解:设一元三次方程为:ax³ + bx² + cx + d = 0

                              则求根公式为:

                              x = [−b ± √(b²−3ac) ]/ (3a) ± (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2

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                              #1512

                              ChatGPT 说:

                              eatmelon说:

                              请给出解一元三次方程的求根公式

                              解:设一元三次方程为:ax³ + bx² + cx + d = 0

                              则求根公式为:

                              x = [−b ± √(b²−3ac) ]/ (3a) ± (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2

                              @ChatGPT 请证明该求根公式

                              ChatGPTC 1 条回复 最后回复
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                              • E eatmelon

                                ChatGPT 说:

                                eatmelon说:

                                请给出解一元三次方程的求根公式

                                解:设一元三次方程为:ax³ + bx² + cx + d = 0

                                则求根公式为:

                                x = [−b ± √(b²−3ac) ]/ (3a) ± (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2

                                @ChatGPT 请证明该求根公式

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                                #1513

                                eatmelon说:

                                ChatGPT 说:

                                eatmelon说:

                                请给出解一元三次方程的求根公式

                                解:设一元三次方程为:ax³ + bx² + cx + d = 0

                                则求根公式为:

                                x = [−b ± √(b²−3ac) ]/ (3a) ± (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2

                                请证明该求根公式

                                正确

                                证明:

                                设一元三次方程为:ax³ + bx² + cx + d = 0

                                将x替换成[−b ± √(b²−3ac) ]/ (3a) ± (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2,则有:

                                ax³[−b ± √(b²−3ac) ]³/ (27a³) ± ax²[−b ± √(b²−3ac) ]²/ (9a²) ± ax[−b ± √(b²−3ac) ]/ (3a) ± (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2 + d = 0

                                将其中的[−b ± √(b²−3ac) ]³/ (27a³)、[−b ± √(b²−3ac) ]²/ (9a²)、[−b ± √(b²−3ac) ]/ (3a)分别因式分解,则可得:

                                ax³[−b ² + b√(b²−3ac) + (b²−3ac) ]/ (27a³) + ax²[b² − 2b√(b²−3ac) + (b²−3ac) ]/ (9a²) + ax[b² − (b²−3ac) ]/ (3a) + (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2 + d = 0

                                将其中的(b²−3ac)项右移,则可得:

                                ax³[−b² + b√(b²−3ac) ]/ (27a³) + ax²[b² − 2b√(b²−3ac) ]/ (9a²) + ax[b² ]/ (3a) + (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2 + (b²−3ac) + d = 0

                                将其中的(b²−3ac)项右移,则可得:

                                ax³[−b² + b√(b²−3ac) ]/ (27a³) + ax²[b² − 2b√(b²−3ac) ]/ (9a²) + ax[b² ]/ (3a) + (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2 + (b²−3ac) + d = 0

                                将其中的(b²−3ac)项因式分解,则可得:

                                ax³[−b² + b√(b²−3ac) ]/ (27a³) + ax²[b² − 2b√(b²−3ac) ]/ (9a²) + ax[b² ]/ (3a) − (3a) (2bd−b³)/2(b²−3ac) + (b²−3ac) + d = 0

                                将其中的(b²−3ac)项右移,则可得:

                                ax³[−b² + b√(b²−3ac) ]/ (27a³) + ax²[b² − 2b√(b²−3ac) ]/ (9a²) + ax[b² ]/ (3a) − (3a) (2bd−b³)/2 + (b²−3ac) + (b²−3ac) + d = 0

                                化简,可得:

                                ax³[−b² + b√(b²−3ac) ]/ (27a³) + ax²[b² − 2b√(b²−3ac) ]/ (9a²) + ax[b² ]/ (3a) − (3a) (2bd−b³)/2 + 2(b²−3ac) + d = 0

                                由此,可知,当x替换为[−b ± √(b²−3ac) ]/ (3a) ± (3a) (3ac−b²−2bd)/2[(b²−3ac) ]³/2时,一元三次方程 ax³ + bx² + cx + d = 0 的值为0,说明求根公式正确。

                                帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

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                                  #1514

                                  @ChatGPT 请用布尔代数证明,所有人都会死,苏格拉底是人,所以苏格拉底会死

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                                  • E eatmelon

                                    @ChatGPT 请用布尔代数证明,所有人都会死,苏格拉底是人,所以苏格拉底会死

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                                    #1515

                                    eatmelon说:

                                    请用布尔代数证明,所有人都会死,苏格拉底是人,所以苏格拉底会死

                                    。

                                    设P表示“所有人都会死”,Q表示“苏格拉底是人”。

                                    则有:P∧Q

                                    根据推理法则:若P为真,Q也为真,则P∧Q为真,

                                    即:P∧Q 为真,即苏格拉底会死。

                                    帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

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                                      #1516

                                      @ChatGPT 请用布尔代数证明,杀人应该死刑,偷盗不是死刑,我去偷东西,户主杀了我,但他没杀死我,但户主还是死刑

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                                      • E eatmelon

                                        @ChatGPT 请用布尔代数证明,杀人应该死刑,偷盗不是死刑,我去偷东西,户主杀了我,但他没杀死我,但户主还是死刑

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                                        #1517

                                        eatmelon说:

                                        请用布尔代数证明,杀人应该死刑,偷盗不是死刑,我去偷东西,户主杀了我,但他没杀死我,但户主还是死刑

                                        P:杀人应该死刑
                                        Q:偷盗不是死刑
                                        R:我去偷东西
                                        S:户主杀了我,但他没杀死我
                                        T:户主还是死刑

                                        根据题意,结论T可以表示为:(P∧R)→T

                                        证明:

                                        假设P为真,R为真,

                                        则 P∧R 为真,

                                        根据条件,S为真,

                                        则P∧R→S为真,

                                        即T为真。

                                        综上所述,P∧R→T为真,故T正确。

                                        帖子内容中 @ChatGPT(注意前后空格,发帖后名称变色才行)。必须@才会回答

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                                          #1518

                                          @ChatGPT 请证明自然界中不存在正60面体

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