在本教程中,我们将讨论一个在二叉树中查找最大父子和的程序。
为此,我们将提供一个二叉树。我们的任务是将父节点及其子节点相加,最后找出所有节点的最大值并打印出来。
#include <iostream>
using namespace std;
struct Node {
int data;
struct Node *left, *right;
};
//插入节点
struct Node* newNode(int n) {
struct Node* root = new Node();
root->data = n;
root->left = root->right = NULL;
return root;
}
int maxSum(struct Node* root) {
if (root == NULL)
return 0;
int res = maxSum(root->left);
if (root->left != NULL && root->right != NULL) {
int sum = root->data + root->left->data + root->right->data;
res = max(res, sum);
}
return max(res, maxSum(root->right));
}
int main() {
struct Node* root = newNode(15);
root->left = newNode(16);
root->left->left = newNode(8);
root->left->left->left = newNode(55);
root->left->right = newNode(67);
root->left->right->left = newNode(44);
root->right = newNode(17);
root->right->left = newNode(7);
root->right->left->right = newNode(11);
root->right->right = newNode(41);
cout << maxSum(root);
return 0;
}输出结果
91