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题目：
题解：
class Solution:def getIntersectionNode(self, headA: ListNode, headB: ListNode) -> ListNode:A, B = headA, headBwhile A != B:A = A.next if A else headBB = B.next if B else headAreturn A
题目：
题解：
class Solution:def getIntersectionNode(self, headA: ListNode, headB: ListNode) -> ListNode:A, B = headA, headBwhile A != B:A = A.next if A else headBB = B.next if B else headAreturn A