本文主要是介绍C++实现BTree代码,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
以下是一个简单的C++实现BTree的示例代码。这个BTree只支持整数元素,并且没有实现插入和删除操作。
#include <iostream>
#include <vector>
struct BTreeNode {
int key;
std::vector<BTreeNode*> children;
BTreeNode(int k) : key(k), children() {}
};
class BTree {
BTreeNode* root;
public:
BTree() : root(nullptr) {}
void insert(int key) {
// 插入操作代码
}
void deleteKey(int key) {
// 删除操作代码
}
void search(int key) {
BTreeNode* current = root;
while (current != nullptr) {
if (current->key == key) {
std::cout << "Key found: " << key << std::endl;
return;
}
for (int i = 0; i < current->children.size(); ++i) {
if (key < current->children[i]->key) {
current = current->children[i];
break;
}
}
current = current->children.back();
}
std::cout << "Key not found: " << key << std::endl;
}
};
int main() {
BTree tree;
tree.root = new BTreeNode(5);
tree.root->children.push_back(new BTreeNode(3));
tree.root->children.push_back(new BTreeNode(7));
tree.root->children[0]->children.push_back(new BTreeNode(1));
tree.root->children[0]->children.push_back(new BTreeNode(4));
tree.root->children[1]->children.push_back(new BTreeNode(6));
tree.root->children[1]->children.push_back(new BTreeNode(8));
tree.search(6);
tree.search(10);
return 0;
}
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