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Update 0450.删除二叉搜索树中的节点.md
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problems/0450.删除二叉搜索树中的节点.md

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@@ -42,15 +42,15 @@
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代码如下:
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```
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```cpp
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TreeNode* deleteNode(TreeNode* root, int key)
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```
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* 确定终止条件
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遇到空返回,其实这也说明没找到删除的节点,遍历到空节点直接返回了
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```
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```cpp
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if (root == nullptr) return root;
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```
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@@ -106,7 +106,7 @@ if (root->val == key) {
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这里相当于把新的节点返回给上一层,上一层就要用 root->left 或者 root->right接住,代码如下:
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```
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```cpp
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if (root->val > key) root->left = deleteNode(root->left, key);
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if (root->val < key) root->right = deleteNode(root->right, key);
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return root;

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