Merge pull request #1797 from fwqaaq/patch-9

Update 0235.二叉搜索树的最近公共祖先.md about rust
This commit is contained in:
程序员Carl
2022-12-23 11:01:14 +08:00
committed by GitHub

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@ -429,6 +429,67 @@ object Solution {
}
```
## rust
递归:
```rust
impl Solution {
pub fn lowest_common_ancestor(
root: Option<Rc<RefCell<TreeNode>>>,
p: Option<Rc<RefCell<TreeNode>>>,
q: Option<Rc<RefCell<TreeNode>>>,
) -> Option<Rc<RefCell<TreeNode>>> {
let q_val = q.as_ref().unwrap().borrow().val;
let p_val = p.as_ref().unwrap().borrow().val;
let root_val = root.as_ref().unwrap().borrow().val;
if root_val > q_val && root_val > p_val {
return Self::lowest_common_ancestor(
root.as_ref().unwrap().borrow().left.clone(),
p,
q,
);
};
if root_val < q_val && root_val < p_val {
return Self::lowest_common_ancestor(
root.as_ref().unwrap().borrow().right.clone(),
p,
q,
);
}
root
}
}
```
迭代:
```rust
impl Solution {
pub fn lowest_common_ancestor(
mut root: Option<Rc<RefCell<TreeNode>>>,
p: Option<Rc<RefCell<TreeNode>>>,
q: Option<Rc<RefCell<TreeNode>>>,
) -> Option<Rc<RefCell<TreeNode>>> {
let p_val = p.unwrap().borrow().val;
let q_val = q.unwrap().borrow().val;
while let Some(node) = root.clone() {
let root_val = node.borrow().val;
if root_val > q_val && root_val > p_val {
root = node.borrow().left.clone();
} else if root_val < q_val && root_val < p_val {
root = node.borrow().right.clone();
} else {
return root;
}
}
None
}
}
```
<p align="center">
<a href="https://programmercarl.com/other/kstar.html" target="_blank">