LintCode-- Remove Linked List Elements
Remove all elements from a linked list of integers that have valueval.
Given 1->2->3->3->4->5->3, val = 3, you should return the list as1->2->4->5
/*** Definition for singly-linked list.* public class ListNode {* int val;* ListNode next;* ListNode(int x) { val = x; }* }*/
public class Solution {/*** @param head a ListNode* @param val an integer* @return a ListNode*/public ListNode removeElements(ListNode head, int val) {// Write your code hereif (head == null) {return head;}ListNode cur = head;ListNode returnHead = new ListNode(-1);returnHead.next = cur;ListNode pre = returnHead;while (cur != null) {if (cur.val == val) {pre.next = cur.next;} else {pre = pre.next;}cur = cur.next;}return returnHead.next;}
}
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