题目描述 输入一棵二叉树,求该树的深度。从根结点到叶结点依次经过的结点(含根、叶结点)形成树的一条路径,最长路径的长度为树的深度。
C++ AC代码
struct TreeNode {
int val;
struct TreeNode *left;
struct TreeNode *right;
TreeNode(int x) :
val(x), left(NULL), right(NULL) {
}
};
class Solution {
public:
int TreeDepth(TreeNode* pRoot){
if(pRoot == NULL){
return 0;
}
int left = this->TreeDepth(pRoot->left);
int right = this->TreeDepth(pRoot->right);
return (left>right)?left+1:right+1;
}
};