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Update 0701.二叉搜索树中的插入操作.md
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@ -677,6 +677,30 @@ impl Solution {
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}
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```
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递归:
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```rust
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impl Solution {
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pub fn insert_into_bst(
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root: Option<Rc<RefCell<TreeNode>>>,
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val: i32,
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) -> Option<Rc<RefCell<TreeNode>>> {
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if let Some(node) = &root {
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if node.borrow().val > val {
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let left = Self::insert_into_bst(node.borrow_mut().left.take(), val);
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node.borrow_mut().left = left;
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} else {
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let right = Self::insert_into_bst(node.borrow_mut().right.take(), val);
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node.borrow_mut().right = right;
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}
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root
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} else {
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Some(Rc::new(RefCell::new(TreeNode::new(val))))
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}
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}
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}
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```
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<p align="center">
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<a href="https://programmercarl.com/other/kstar.html" target="_blank">
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