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添加 0236.二叉树的最近公共祖先.md Scala版本

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problems/0236.二叉树的最近公共祖先.md
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@ -343,7 +343,25 @@ function lowestCommonAncestor(root: TreeNode | null, p: TreeNode | null, q: Tree
};
```
## Scala
```scala
object Solution {
def lowestCommonAncestor(root: TreeNode, p: TreeNode, q: TreeNode): TreeNode = {
// 递归结束条件
if (root == null || root == p || root == q) {
return root
}
var left = lowestCommonAncestor(root.left, p, q)
var right = lowestCommonAncestor(root.right, p, q)
if (left != null && right != null) return root
if (left == null) return right
left
}
}
```
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<div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>