083 remove duplicates from sorted list
83. Remove Duplicates from Sorted List
题目: https://leetcode.com/problems/remove-duplicates-from-sorted-list/
难度:
Easy
dummy 大法
class Solution(object):
def deleteDuplicates(self, head):
"""
:type head: ListNode
:rtype: ListNode
"""
dummy = head
while head:
while head.next and head.next.val == head.val:
head.next = head.next.next # skip duplicated node
head = head.next # not duplicate of current node, move to next node
return dummy
