From e754ded095a5021cedaa233d4726bede49d7fceb Mon Sep 17 00:00:00 2001
From: ehlxr <ehlxr.me@gmail.com>
Date: Mon, 20 Jun 2022 10:13:43 +0800
Subject: [PATCH] update

---
 src/lowest_common_ancestor.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/lowest_common_ancestor.go b/src/lowest_common_ancestor.go
index 870784c..203044c 100644
--- a/src/lowest_common_ancestor.go
+++ b/src/lowest_common_ancestor.go
@@ -11,6 +11,7 @@ func find(root *TreeNode, l, r int) *TreeNode {
 	if root == nil {
 		return nil
 	}
+	// p 和 q 均存在于给定的二叉树中
 	if root.Val == l || root.Val == r {
 		return root
 	}