A Quora question asks "List all the three-digit numbers which have the property that the sum of their digits is equal to 5"
I got the answer explicitly, by a straightforward brute force approach:: a#~5=+/"1]10#.^:_1 a=:100+i.900 104 113 122 131 140 203 212 221 230 302 311 320 401 410 500 How can this be written implicitly? Skip Skip Cave Cave Consulting LLC ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
