{leetcode}/problems/remove-duplicates-from-sorted-list-ii/[LeetCode - Remove Duplicates from Sorted List II^]
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
快慢指针是个好办法！
注意推敲满指针前进的条件！
link:{sourcedir}/_0082_RemoveDuplicatesFromSortedListII.java[role=include]
link:{sourcedir}/_0082_RemoveDuplicatesFromSortedListII_2.java[role=include]