Leetcode 82 - Remove Duplicates from Sorted List II
题目:Givenasortedlinkedlist,deleteallnodesthathaveduplicatenumbers,leavingonlydistinctnumbersfromtheoriginallist.Example1:Input:1->2->3->3->4->4->5Output:1->2->5Example2:Input:1->1->1->2->3Output:2->3思路