LeetCode 82. 删除排序链表中的重复元素 II
2021-04-19 21:29
标签：__init__ 重复元素 删除 else head lan self 排序 return 给定一个排序链表，删除所有含有重复数字的节点，只保留原始链表中?没有重复出现?的数字。 示例?1: 示例?2: LeetCode 82. 删除排序链表中的重复元素 II 标签：__init__ 重复元素 删除 else head lan self 排序 return 原文地址：https://www.cnblogs.com/sandy-t/p/13287313.html
输入: 1->2->3->3->4->4->5
输出: 1->2->5
输入: 1->1->1->2->3
输出: 2->3# Definition for singly-linked list.
# class ListNode:
# def __init__(self, x):
# self.val = x
# self.next = None
class Solution:
def deleteDuplicates(self, head: ListNode) -> ListNode:
if head is None or head.next is None:
return head
node = ListNode(None)
node.next = head
pre = node
cur = head
while cur is not None and cur.next is not None:
if cur.val == cur.next.val:
while cur.next is not None and cur.val == cur.next.val:
cur = cur.next
pre.next = cur.next
cur = cur.next
else:
cur = cur.next
pre = pre.next
return node.next
文章标题：LeetCode 82. 删除排序链表中的重复元素 II
文章链接：http://soscw.com/index.php/essay/76836.html