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操作给定的二叉树,将其变换为源二叉树的镜像。
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
/**
public class TreeNode {
int val = 0;
TreeNode left = null;
TreeNode right = null;
public TreeNode(int val) {
this.val = val;
}
}
*/
public class Solution {
public void Mirror(TreeNode root) {
if ((root == null) || (root.left == null && root.right == null)) {
return;
}
TreeNode nodeTemp = root.left;
root.left = root.right;
root.right = nodeTemp;
if (root.left != null) {
Mirror(root.left);
}
if (root.right != null) {
Mirror(root.right);
}
}
}
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原文地址:http://www.cnblogs.com/rosending/p/5618375.html