2017
CSDojo - How to Crack a Google Coding Interview - An Ex-Googler’s Guide of 15:06
    https://www.youtube.com/watch?v=uQdy914JRKQ
    https://www.udemy.com/course/11-essential-coding-interview-questions/
    magnet:?xt=urn:btih:ea6b6abf270acd1f7e32835b7fb5c90399a695c4