以下是一个基于题目要求的二叉树类的设计和实现示例:
#include <iostream>
#include <stack>
using namespace std;
template<typename T>
struct BinTreeNode {
T data;
T data2;
BinTreeNode<T> *leftChild, *rightChild;
};
template<typename T>
class BinaryTree {
private:
BinTreeNode<T>* root;
public:
BinaryTree(const string& str) {
root = nullptr;
stack<BinTreeNode<T>*> s; // 辅助栈用于构建二叉树
int i = 0;
while (i < str.size()) {
if (str[i] == '(') {
i++;
} else if (str[i] == ')') {
s.pop();
i++;
} else if (str[i] == ',') {
i++;
} else { // 字母节点
BinTreeNode<T>* newNode = new BinTreeNode<T>;
newNode->data = str[i];
newNode->leftChild = newNode->rightChild = nullptr;
if (!root) { // 如果根节点为空,当前节点即为根节点
root = newNode;
} else { // 否则,将当前节点连接到父节点上
if (!s.top()->leftChild)
s.top()->leftChild = newNode;
else
s.top()->rightChild = newNode;
}
s.push(newNode);
i++;
}
}
}
~BinaryTree() {
Release(root);
}
void Release(BinTreeNode<T>* node) {
if (!node)
return;
Release(node->leftChild);
Release(node->rightChild);
delete node;
}
BinTreeNode<T>* FindNode(const T& x) {
return Find(root, x);
}
BinTreeNode<T>* Find(BinTreeNode<T>* node, const T& x) {
if (!node)
return nullptr;
if (node->data == x)
return node;
BinTreeNode<T>* leftResult = Find(node->leftChild, x);
BinTreeNode<T>* rightResult = Find(node->rightChild, x);
return leftResult ? leftResult : rightResult;
}
int Height() {
return GetHeight(root);
}
int GetHeight(BinTreeNode<T>* node) {
if (!node)
return 0;
int leftHeight = GetHeight(node->leftChild);
int rightHeight = GetHeight(node->rightChild);
return max(leftHeight, rightHeight) + 1;
}
void SetNode(const T& x, const T& y) {
SetData2(root, x, y);
}
void SetData2(BinTreeNode<T>* node, const T& x, const T& y) {
if (!node)
return;
if (node->data == x)
node->data2 = y;
SetData2(node->leftChild, x, y);
SetData2(node->rightChild, x, y);
}
void Disp() {
PrintTree(root);
cout << endl;
}
void PrintTree(BinTreeNode<T> *root){
if(root==nullptr){
cout<<"";
}else{
cout<<"<"<<root->data<<","<<root->data2<<">";
cout<<"(";
PrintTree(root->leftChild);
cout<<",";
PrintTree(root->rightChild);
cout<<")";
}
}
};
int main()
{
BinaryTree<char> bt("A(B(D(,G)),C(E,F))");
BinTreeNode<char>* p;
cout << "b的高度: " << bt.Height() << endl;
p = bt.FindNode('F');
if (p != nullptr)
cout << "b中存在F结点" << endl;
else
cout << "b中不存在F结点" << endl;
bt.SetNode('A', 1);
bt.SetNode('B', 1);
bt.SetNode('D', 3);
bt.Disp();
return 0;
}
请注意,以上示例代码是基于题目要求提供的功能设计的,可能不包含所有异常处理和完整的边界情况处理。在实际使用时,请根据需要进行适当修改和优化。
内容由零声教学AI助手提供,问题来源于学员提问