题目链接:https://leetcode-cn.com/problems/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof/ 输入两个链表,找出它们的第一个公共节点. 如下面的两个链表: 在节点 c1 开始相交. 输入:intersectVal = 8, listA = [4,1,8,4,5], listB = [5,0,1,8,4,5], skipA = 2, skipB = 3输出:Reference of the node wi