LeetCode - Remove Duplicates from Sorted List
Description:Given a sorted linked list, delete all duplicates such that each element appear only once.
For example, Given 1->1->2
, return 1->2
. Given 1->1->2->3->3
, return 1->2->3
.
给一个有序链表,删除重复的元素。还是首先考虑head == null的情况。
/** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ListNode(int x) { * val = x; * next = null; * } * } */ public class Solution { public ListNode deleteDuplicates(ListNode head) { if(head == null) return null; ListNode p, q; q = head; p = head.next; while(p != null) { if(p.val == q.val) { q.next = p.next; p.next = null; p = q.next; } else { p = p.next; q = q.next; } } return head; } }
作者:Pickle
声明:对于转载分享我是没有意见的,出于对博客园社区和作者的尊重一定要保留原文地址哈。
致读者:坚持写博客不容易,写高质量博客更难,我也在不断的学习和进步,希望和所有同路人一道用技术来改变生活。觉得有点用就点个赞哈。
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