题目描述:操作给定的二叉树,将其变换为源二叉树的镜像。
输入描述:
二叉树的镜像定义:源二叉树 8 / \ 6 10 / \ / \ 5 7 9 11 镜像二叉树 8 / \ 10 6 / \ / \ 11 9 7 5
C++代码:
struct TreeNode {
int val;
struct TreeNode *left;
struct TreeNode *right;
TreeNode(int x) :
val(x), left(NULL), right(NULL) {
}
};
class Solution {
public:
void Mirror(TreeNode *pRoot) {
if (pRoot == NULL)return;
TreeNode* tmp = NULL;
tmp = pRoot->left;
pRoot->left = pRoot->right;
pRoot->right = tmp;
if (pRoot->left != NULL)Mirror(pRoot->left);
if (pRoot->right != NULL)Mirror(pRoot->right);
}
};