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
/*
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;
}
Mirror(pRoot->left);
Mirror(pRoot->right);
TreeNode* tmp = pRoot->left;
pRoot->left = pRoot->right;
pRoot->right = tmp;
}
};
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