feat: 2025-10-24打卡

203.remove-linked-list-elements.java

@@ -0,0 +1,38 @@
+/*
+ * @lc app=leetcode id=203 lang=java
+ *
+ * [203] Remove Linked List Elements
+ */
+
+// @lc code=start
+/**
+ * Definition for singly-linked list.
+ * public class ListNode {
+ *     int val;
+ *     ListNode next;
+ *     ListNode() {}
+ *     ListNode(int val) { this.val = val; }
+ *     ListNode(int val, ListNode next) { this.val = val; this.next = next; }
+ * }
+ */
+class Solution {
+    public ListNode removeElements(ListNode head, int val) {
+        if(head == null) {
+            return null;
+        }
+        while(head!=null && head.val == val) {
+            head = head.next;
+        }
+        ListNode cur = head;
+        while(cur != null && cur.next != null) {
+            if(cur.next.val == val) {
+                cur.next = cur.next.next;
+            } else {
+                cur = cur.next;
+            }
+        }
+        return head;
+    }
+}
+// @lc code=end
+