Skip to content

Instantly share code, notes, and snippets.

@toothrot

toothrot/powerset.rb

Created May 18, 2011 22:20
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save toothrot/979726 to your computer and use it in GitHub Desktop.
Save toothrot/979726 to your computer and use it in GitHub Desktop.
Download ZIP
powerset in ruby
Raw
powerset.rb
class Array
def powerset
inject([[]]){ |c,y|
c.inject([]) {|r,i|
r+=[i,i+[y]]
}
}
end
end
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment