Remove Duplicates From Sorted List II
Created: September 19, 2018 by [lek-tin]
Last updated: September 19, 2018
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list.
Example 1
Input: 1->2->3->3->4->4->5
Output: 1->2->5
Example 2
Input: 1->1->1->2->3
Output: 2->3