操作给定的二叉树,将其变换为源二叉树的镜像。
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 (NULL == pRoot) {
return;
}
if (NULL == pRoot->left && NULL == pRoot->right) {
return;
}
TreeNode* temp = pRoot->left;
pRoot->left = pRoot->right;
pRoot->right = temp;
Mirror(pRoot->left);
Mirror(pRoot->right);
}
};