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047c4db195
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@ -208,7 +208,7 @@ int getHeight(TreeNode* node) {
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```CPP
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```CPP
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class Solution {
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class Solution {
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public:
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public:
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// 返回以该节点为根节点的二叉树的高度,如果不是二叉搜索树了则返回-1
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// 返回以该节点为根节点的二叉树的高度,如果不是平衡二叉树了则返回-1
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int getHeight(TreeNode* node) {
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int getHeight(TreeNode* node) {
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if (node == NULL) {
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if (node == NULL) {
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return 0;
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return 0;
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