• FANG means “Facebook, Amazon, Netflix and Google” [1]
• CTCI means “Cracking the Coding Interview” [2]
• LC means “Leet Code” [3]
[1] https://en.wikipedia.org/wiki/Facebook,_Apple,_Amazon,_Netfl...
[2] http://www.crackingthecodinginterview.com/
[3] https://leetcode.com/