From 8ad2f18126919f8be221e00cb5962b54c55a6a12 Mon Sep 17 00:00:00 2001
From: whai <lkwhai@163.com>
Date: Wed, 27 Dec 2023 19:44:46 +0800
Subject: [PATCH] =?UTF-8?q?LeetCode203=20707=E9=93=BE=E8=A1=A8=20-=20?=
 =?UTF-8?q?=E5=8F=8C=E5=90=91=E9=93=BE=E8=A1=A8=E7=9A=84=E4=BD=BF=E7=94=A8?=
 =?UTF-8?q?=20-=20=E5=A2=9E=E5=8A=A0=E8=99=9A=E6=8B=9F=E5=A4=B4=E8=8A=82?=
 =?UTF-8?q?=E7=82=B9=E6=96=B9=E4=BE=BF=E6=93=8D=E4=BD=9C?=
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---
 .../whaifree/leetCode/easy/LeetCode203.java   | 31 +++++++++++++++++--
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/src/main/java/cn/whaifree/leetCode/easy/LeetCode203.java b/src/main/java/cn/whaifree/leetCode/easy/LeetCode203.java
index a434b79..c88c6b8 100644
--- a/src/main/java/cn/whaifree/leetCode/easy/LeetCode203.java
+++ b/src/main/java/cn/whaifree/leetCode/easy/LeetCode203.java
@@ -174,13 +174,38 @@ public class LeetCode203 {
     }
 
 
+    /**
+     * 0 1 2 3
+     * 加上虚拟表头节点
+     * @param head
+     * @param val
+     * @return
+     */
+    public ListNode removeElements7(ListNode head, int val) {
+        ListNode virtualHead = new ListNode(0, head);
+        ListNode pre = virtualHead;
+        ListNode index = head;
+        head = virtualHead;
+        while (index != null) {
+            if (index.val == val) {
+                pre.next = index.next;
+                index = pre.next;
+            }else {
+                pre = pre.next;
+                index = index.next;
+            }
+        }
+        return head.next;
+    }
 
 
-    @Test
+
+
+        @Test
     public void Test() {
-        ListNode listNode = ListNode.listNodeFromArray(new int[]{6,6,6,6});
+        ListNode listNode = ListNode.listNodeFromArray(new int[]{7,7,7,7});
 //        ListNode.printList(listNode);
-        ListNode listNode1 = removeElements(listNode, 6);
+        ListNode listNode1 = removeElements7(listNode, 7);
         ListNode.printList(listNode1);
     }
 }