Add Two Numbers

翻译给你两个表示两个非负数字的链表。数字以相反的顺序存储，其节点包含单个数字。将这两个数字相加并将其作为一个链表返回。输入: (2 -> 4 -> 3) + (5 -> 6 -> 4)输出: 7 -> 0 -> 8原文You are given two linked lists representing two non-negative numbers.