83.Remove-Duplicates-from-Sorted-List

83. Remove Duplicates from Sorted List

题目地址

题目描述

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

代码

Approach 1: Straight-Forward Approach

public class Solution {
public ListNode deleteDuplicates(ListNode head) {
ListNode curr = head;
while (curr != null) {
while (curr.next != null && curr.val == curr.next.val){
curr.next = curr.next.next;
}
curr = curr.next;
}
return head;
}
}