# -*- coding:utf-8 -*- # class ListNode: # def __init__(self, x): # self.val = x # self.next = None class Solution: def FindFirstCommonNode(self, pHead1, pHead2): a,b,c = 0,0,0 head1 = pHead1 head2 = pHead2 def length(node): if not node: return 0 return 1 + length(node.next) # 求出pHead1和Phead2的链表长度 a...