white_listed_sites.txt

bikeshed.fm
codepen.io
haseebq.com
http://www.codergears.com/Blog/
https://artofproblemsolving.com
https://forum.xda-developers.com
https://forum.xda-developers.com/general/xda-university
https://hackernoon.com/
https://regexr.com
https://techiedelight.quora.com/500-Data-Structures-and-Algorithms-practice-problems-and-their-solutions
learn.hackerearth.com
medium.freecodecamp.com
projecteuler.net
reddit.com
regex101.com
stroustrup.com
wildlyinaccurate.com
www.codechef.com
www.coursera.org
www.cubrid.org
www.joelonsoftware.com
www.quora.com
www.techotopia.com
www.topcoder.com