http://www.perlmonks.org?node_id=84180


in reply to (Efficiency Golf) Triangular numbers

Is there any constraint on the way the letters form the numbers? Like, did they state that the letters code for the numbers 0..9 in an unknown order? Can it also be that they code for 0..25 each? Or can they encode say 1000..1025, but are always in the same order?

Jeroen