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Update 0669.修剪二叉搜索树.md
添加 0669.修剪二叉搜索树 Java版本
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@ -242,7 +242,25 @@ public:
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Java:
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```Java
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class Solution {
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public TreeNode trimBST(TreeNode root, int low, int high) {
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if (root == null) {
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return null;
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}
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if (root.val < low) {
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return trimBST(root.right, low, high);
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}
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if (root.val > high) {
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return trimBST(root.left, low, high);
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}
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// root在[low,high]范围内
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root.left = trimBST(root.left, low, high);
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root.right = trimBST(root.right, low, high);
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return root;
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}
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}
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```
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Python:
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