stupenrose

Keybase proof

I hereby claim:

• I am stupenrose on github.
• I am stupenrose (https://keybase.io/stupenrose) on keybase.
• I have a public key ASCZ9kTEELNdtX_n9rfeIUxgDltTm8_uFhEk9m-Wieb6Hwo

To claim this, I am signing this object:

stupenrose

object Permutator {
  
    /**
     * http://en.wikipedia.org/wiki/Permutation#Algorithms_to_generate_permutations
     */
    def permutate[T](parts:List[T])(implicit cmp: Ordering[T]):Stream[Seq[T]] = {
	    //sorting the sequence in (weakly) increasing order (which gives its lexicographically minimal permutation)
    	val start = parts.sorted
    	
    	def remainder(parts:List[T]):Stream[Seq[T]] = {