From 1675ea6fbee7adb3b1aefd20ea4cb9aa7ff23232 Mon Sep 17 00:00:00 2001
From: HQWQF <47740975+HQWQF@users.noreply.github.com>
Date: Sat, 16 Dec 2023 16:57:54 +0800
Subject: [PATCH] =?UTF-8?q?Update=200024.=E4=B8=A4=E4=B8=A4=E4=BA=A4?=
 =?UTF-8?q?=E6=8D=A2=E9=93=BE=E8=A1=A8=E4=B8=AD=E7=9A=84=E8=8A=82=E7=82=B9?=
 =?UTF-8?q?.md=20=E4=BF=AE=E5=A4=8D=E6=B2=A1=E6=9C=89delete=20dummyHead?=
 =?UTF-8?q?=E7=9A=84=E9=94=99=E8=AF=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

new了一个虚拟头结点，但没有delete它
---
 problems/0024.两两交换链表中的节点.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/problems/0024.两两交换链表中的节点.md b/problems/0024.两两交换链表中的节点.md
index 57034f47..405f4183 100644
--- a/problems/0024.两两交换链表中的节点.md
+++ b/problems/0024.两两交换链表中的节点.md
@@ -63,7 +63,9 @@ public:
 
             cur = cur->next->next; // cur移动两位，准备下一轮交换
         }
-        return dummyHead->next;
+        ListNode* result = dummyHead->next;
+        delete dummyHead;
+        return result;
     }
 };
 ```