LC 0203 [E] Remove Linked List Elements - ALawliet/algorithms GitHub Wiki
class Solution:
def removeElements(self, head: ListNode, val: int) -> ListNode:
dum = ListNode(-1)
dum.next = head
prev = dum
cur = head
while cur:
if cur.val == val:
prev.next = cur.next # skip over it
else:
prev = cur
cur = cur.next
return dum.next
class Solution:
def removeElements(self, head, val):
dum = ListNode(-1)
dum.next = head
cur = dum
while cur.next:
if cur.next.val == val:
cur.next = cur.next.next
else:
cur = cur.next
return dum.next