[leetcode]83.Remove Duplicates from Sorted List
题目
Given a sorted linked list, delete all duplicates such that each element appear only once.
Example 1:
Input: 1->1->2
Output: 1->2
Example 2:
Input: 1->1->2->3->3
Output: 1->2->3
解法
思路
其实刚看到这道题，我直接想到的是[leetcode]26.Remove Duplicates from Sorted Array这道题的思路，所以设置了一个快指针和一个慢指针。
代码
/*** Definition for singly-linked list.* public class ListNode {* int val;* ListNode next;* ListNode(int x) { val = x; }* }*/
class Solution {public ListNode deleteDuplicates(ListNode head) {if(head == null) return null;ListNode fast = head;ListNode slow = head;while(fast != null) {if(slow.val == fast.val)fast = fast.next;else{slow.next = fast;slow = slow.next;}}slow.next = null; return head;}
}转载于:https://www.cnblogs.com/shinjia/p/9734386.html
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