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template<class Key, class Value>
class BST
{
public:
BST();
~BST();
public:
class TreeNode
{
public:
TreeNode(Key key, Value val, int N)
{
this->key = key; this->val = val; this->N = N;
}
Key key;
Value val;
TreeNode* left;
TreeNode* right;
int N; //nodes in subtree rooted here
};
public:
void put(Key key, Value val);
private:
TreeNode* put(TreeNode* root, Key key, Value val);
private:
int N;
TreeNode* proot; // root of BST
};
template<class Key, class Value>
BST<Key, Value>::BST()
{
proot = NULL;
}
template<class Key, class Value>
BST<Key, Value>::~BST()
{
}
template<class Key, class Value>
void BST<Key, Value>::put(Key key, Value val)
{
proot = put(proot, key, val);
}
template<class Key, class Value>
TreeNode* BST<Key, Value>::put(TreeNode* pnode, Key key, Value val)
{
if (pnode == NULL)
return new TreeNode(key, val, 1);
if (pnode->key == key) {
pnode->val = val;
return pnode;
}
else if (pnode->key < key)
pnode->right = put(pnode->right, key, val);
else if (pnode->key > key)
pnode->left = put(pnode->left, key, val);
}
template<class Key, class Value>
class TreeNode
{
public:
TreeNode(Key key, Value val, int N)
{
this->key = key; this->val = val; this->N = N;
}
Key key;
Value val;
TreeNode* left;
TreeNode* right;
int N; //nodes in subtree rooted here
};
template<class Key, class Value>
class BST
{
public:
BST();
~BST();
public:
void put(Key key, Value val);
private:
TreeNode* put(TreeNode* root, Key key, Value val);
public:
//test entrance
static void main(int minLen);
private:
int N;
TreeNode* proot; // root of BST
};
函数定义如下:
TreeNode* BST<Key, Value>::put(TreeNode* pnode, Key key, Value val)
但是还是要报模板相关的错误error C2955: “TreeNode”: 使用 类 模板 需要 模板 参数列表
可以贴一下正确的代码吗,谢谢。