python reverse linked list
def reverseLinkedList(root):
cur = root
prev = None
while cur:
nxt = cur.next
cur.next = prev
prev = cur
cur = nxt
return prev
python reverse linked list
def reverseLinkedList(root):
cur = root
prev = None
while cur:
nxt = cur.next
cur.next = prev
prev = cur
cur = nxt
return prev
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