LeetCode刷题（45）--Remove Duplicates from Sorted List

一个遍历列表，一个记录结果，一个记录head！

class Solution(object):def deleteDuplicates(self, head):""":type head: ListNode:rtype: ListNode"""if not head:return headcur = headdummy = headres = dummywhile cur.next:if cur.next.val != cur.val:dummy.next = cur.nextdummy = dummy.nextcur = cur.nextdummy.next = Nonereturn res

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