203. Remove Linked List Elements
Remove all elements from a linked list of integers that have value val.
Example
Given: 1 --> 2 --> 6 --> 3 --> 4 --> 5 --> 6, val = 6
Return: 1 --> 2 --> 3 --> 4 --> 5
java实现
/** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { val = x; } * } */ public class Solution { public ListNode removeElements(ListNode head, int val) { ListNode helper = new ListNode(0); helper.next = head; ListNode p = helper; while(p.next != null){ if(p.next.val == val){ ListNode next = p.next; p.next = next.next; }else{ p = p.next; } } return helper.next; } }