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Remove Duplicates from Sorted List

时间:2014-04-01 23:25:34      阅读:793      评论:0      收藏:0      [点我收藏+]

Remove Duplicates from Sorted List

 

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.

 

/**
* 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 node = head;
    //ListNode current = node;
    while(node.next != null){
      if(node.val != node.next.val)
        node = node.next;
      else
        node.next = node.next.next;
    }
  return head;
  }
}

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Remove Duplicates from Sorted List

原文:http://www.cnblogs.com/boole/p/3639329.html

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