16
05/2015
[LeetCode] Maximum Depth of Binary Tree
Maximum Depth of Binary Tree
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.
解题思路：
这道题就是求二叉树的高度而已。递推求解两行代码即可。
/**
* Definition for a binary tree node.
* struct TreeNode {
* int val;
* TreeNode *left;
* TreeNode *right;
* TreeNode(int x) : val(x), left(NULL), right(NULL) {}
* };
*/
class Solution {
public:
int maxDepth(TreeNode* root) {
if(root==NULL){
return 0;
}
return max(maxDepth(root->left), maxDepth(root->right)) + 1;
}
};
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