[Jprogramming] all pairs

[June Kim]

Thank you for interesting approaches, but those aren't what I was expecting.

What I meant was "2 combination N"; compare the # of results of mine
and yours. Sorry if my description wasn't clear.

Following is one more approach I found:
   ut=:[: -. >/~@i.
   ([: > ([:, at ut {.@$) # [: ,@{ 2 $ < ) 'abcd'
aa
ab
ac
ad
bb
bc
bd
cc
cd
dd


2007/2/10, Miller, Raul D <rdmiller at usatoday.com>:
> Here's some other approaches:
>
>   ,/ f"0/~ 'abcd'
>   f/&>,{;~ 'abcd'
>
> also (for boxed args):
>   f/&>,{,&<~ 'abcd'
>   f/&>,{(;<) 'abcd'
>
> --
> Raul
>
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