Re: exercise 2019/04

[David Tran]

I did also try to solve this quiz before.
My solution is not as good as Kacper.
Anyway, here is my solution:
{(∧/¨(0<x)∧x≤8)/x←(⊂⍵)+x,⌽¨x←,¯2 2∘.,¯1 1;x}

David.