Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: A: a1 → a2 ↘ c1 → c2 → c3 ↗ B: b1 → b2 → b3 begin to intersect at node c1. 解题思路: 先遍历两个list的长度,然后长的减去短的,之后同时遍历即可…