Problems from r/dailyprogrammer.
Sometimes I have a little free time and these problems are usually pretty entertaining.

What's even more entertaining is to see one line solutions in the comment sections.
For example: cantor=. [: ~.@; [: |.^:(2&|@#)@:(%~ |.)@:>:@i.&.> >:@i.@x:
in http://www.reddit.com/r/dailyprogrammer/comments/yqxyy/8242012_challenge_91_intermediate_cantors/