From 26816ec04f90ffcfcf7c0377ac456938dddaa2e2 Mon Sep 17 00:00:00 2001
From: eeee0717 <70054568+eeee0717@users.noreply.github.com>
Date: Sun, 26 Nov 2023 10:29:53 +0800
Subject: [PATCH] =?UTF-8?q?Update=200617.=E5=90=88=E5=B9=B6=E6=9C=80?=
 =?UTF-8?q?=E5=A4=A7=E4=BA=8C=E5=8F=89=E6=A0=91=EF=BC=8C=E6=B7=BB=E5=8A=A0?=
 =?UTF-8?q?C#=E7=89=88?=
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---
 problems/0617.合并二叉树.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/problems/0617.合并二叉树.md b/problems/0617.合并二叉树.md
index 18839a26..9efeb56d 100644
--- a/problems/0617.合并二叉树.md
+++ b/problems/0617.合并二叉树.md
@@ -788,6 +788,20 @@ impl Solution {
     }
 }
 ```
+### C#
+```C#
+public TreeNode MergeTrees(TreeNode root1, TreeNode root2)
+{
+    if (root1 == null) return root2;
+    if (root2 == null) return root1;
+
+    root1.val += root2.val;
+    root1.left = MergeTrees(root1.left, root2.left);
+    root1.right = MergeTrees(root1.right, root2.right);
+
+    return root1;
+}
+```
 
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