Given a binary tree, find its maximum depth.
The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
struct TreeNode {
int val;
TreeNode *left;
TreeNode *right;
TreeNode(int x) : val(x), left(NULL), right(NULL) {}
};
int maxDepth(TreeNode *root) {
if (root == NULL)
return 0;
int leftdepth = maxDepth(root->left);
int rightdepth = maxDepth(root->right);
return max(leftdepth, rightdepth) + 1;
}
本文介绍了如何通过递归算法来计算给定二叉树的最大深度,即从根节点到最远叶子节点的路径长度。
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