【002-Add Two Numbers (单链表表示的两个数相加)】
原题
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes conta...
Given two non-negative numbers num1 and num2 represented as string, return the sum of num1 and num2.
Note:
The length of both num1 and num2 is < 5100.
Both num1 and num2 contains only digits 0-9...