FilesExpand file tree

master

/

deleteDuplicates.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

21 lines (19 loc) · 548 Bytes

master

/

deleteDuplicates.py

Copy path

Top

File metadata and controls

• Code
• Blame

21 lines (19 loc) · 548 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

class ListNode:

def __init__(self, val=0, next=None):

self.val = val

self.next = next

class Solution:

def deleteDuplicates(self, head: ListNode) -> ListNode:

dummy = ListNode(0)

dummy.next = head

pre = dummy

cur = head

while cur:

while cur.next and cur.val == cur.next.val:

cur = cur.next

if pre.next == cur:

pre = cur

else:

pre.next = cur.next

cur = cur.next

return dummy.next