May 27, 2023 · Dec 7, 2022 · Dec 9, 2022 · Mar 19, 2023 · Mar 20, 2023 · Mar 20, 2023
diff --git a/problems/0450.删除二叉搜索树中的节点.md b/problems/0450.删除二叉搜索树中的节点.md
Original file line number	Diff line number	Diff line change
Expand Up		@@ -680,6 +680,40 @@ object Solution {
		}
		```

	## rust

	```rust
	impl Solution {
	pub fn delete_node(
	root: Option<Rc<RefCell<TreeNode>>>,
	key: i32,
	) -> Option<Rc<RefCell<TreeNode>>> {
	root.as_ref()?;

	let mut node = root.as_ref().unwrap().borrow_mut();
	match node.val.cmp(&key) {
	std::cmp::Ordering::Less => node.right = Self::delete_node(node.right.clone(), key),
	std::cmp::Ordering::Equal => match (node.left.clone(), node.right.clone()) {
	(None, None) => return None,
	(None, Some(r)) => return Some(r),
	(Some(l), None) => return Some(l),
	(Some(l), Some(r)) => {
	let mut cur = Some(r.clone());
	while let Some(n) = cur.clone().unwrap().borrow().left.clone() {
	cur = Some(n);
	}
	cur.unwrap().borrow_mut().left = Some(l);
	return Some(r);
	}
	},
	std::cmp::Ordering::Greater => node.left = Self::delete_node(node.left.clone(), key),
	}
	drop(node);
	root
	}
	}
	```

		<p align="center">
		<a href="https://programmercarl.com/other/kstar.html" target="_blank">
		<img src="../pics/网站星球宣传海报.jpg" width="1000"/>
Expand Down