How to tell if two linked lists intersect V.S. How to detect linked list cycle

How to tell if two linked lists intersect V.S. How to detect linked list cycle I am really excited to bring this, it’s gonna be fun, hope you enjoy. Edit

Leetcode 150: Evaluate Reverse Polish Notation

Leetcode 150: Evaluate Reverse Polish Notation Edit Evaluate Reverse Polish Notation on GitHub First you should know the definition of Reverse Polish Notation, it is quite interesting, postfix, stack-based, 😀

Leetcode 7 Reverse Integer and 8 String to Integer (atoi)

Leetcode 7 Reverse Integer and 8 String to Integer (atoi) This two problem share lots of similarities in data manipulating and thinking, and simplicity (:-D). Thus I decide to put