反转链表-reverse linked list
def reverseList(self,head)?/(head为第一个节点)
cur,prev = head,None
while cur:
cur.next,prev,cur = prev,cur,cur.next
return prev
反转链表-reverse linked list
def reverseList(self,head)?/(head为第一个节点)
cur,prev = head,None
while cur:
cur.next,prev,cur = prev,cur,cur.next
return prev

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