g=: 13 :'((>:i.$ y)*"2 (=/~ +. ] =/ |.) >:i.$ y){'' '',y' g (([: >: [: i. $) *"2 [: (=/~ +. ] =/ |.) [: >: [: i. $) { ' ' , ] g 'good puzzle' g g o o o o d d p u u z z z z l l e e
Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Linda Alvord Sent: Monday, December 10, 2012 1:40 AM To: programm...@jsoftware.com Subject: Re: [Jprogramming] Just for fun, verb cross f=:(([: >: [: i. $) *"2 =/~ +. ] =/ |.) { ' ' , ] f 'abcdefg' a a b b c c d e e f f g g q 'good puzzle' g g oo oo oo oo d d p u u zz zz zz zz l l e e Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Marshall Lochbaum Sent: Sunday, December 09, 2012 11:07 PM To: programm...@jsoftware.com Subject: Re: [Jprogramming] Just for fun, verb cross Here's a pretty good version: cross =: {~`(],#@[->:@])`(' '"0~[)}"_ 0 i.@# cross 'abcde' a a b b c d d e e The important simplification here is to do it by lines and not build the whole structure at once. Marshall On Sun, Dec 09, 2012 at 08:42:13PM -0600, km wrote: > Write verb cross. > > cross 'abcde' > a a > b b > c > d d > e e > > (Result should look like a cross with 'abcde' along both diagonals.) > > cross 'a' > a > cross 'ab' > aa > bb > > Kip Murray > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm