445. Add two numbers II

Oct. 31, 2018

Introduction

It is a medium level linked list algorithm. I wrote the solution using stacks and then I found out that it is easy to write.

My practice

Here is my discuss link.

Medium level linked list
138. Copy list with random pointer The elegant solution
143. Reorder the list 
147. Insertion sort list hard to write but is readable
445. Add two numbers II
817. Linked list components using hashset