题解 | #删除有序链表中重复的元素-I#
删除有序链表中重复的元素-I
http://www.nowcoder.com/practice/c087914fae584da886a0091e877f2c79
# def __init__(self, x):
# self.val = x
# self.next = None
#
# 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
#
#
# @param head ListNode类
# @return ListNode类
#
class Solution:
def deleteDuplicates(self , head: ListNode) -> ListNode:
# write code here
if head == None or head.next ==None:
return head
Head = head
pre = head
nxt = pre.next
while nxt != None:
if nxt.val == pre.val:
pre.next = nxt.next
nxt = pre.next
else:
pre = nxt
nxt = pre.next
return Head