I see Raul & Bob have replied while I was abed. SO, before I look at their replies....
Not brute force, but quite neat: <.^(10%3)*^.10 14 For a smaller problem, check with 4^4: +/(=<.)^&(%3)>:i.4^4 6 <.^(4%3)*^.4 6 QED? Cheers, Mike On 21/03/2021 02:57, Skip Cave wrote:
How do you solve this problem using J (brute force) n =. >: i. 1000 p =. n^n How many p are perfect cubes?
-- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
