24 Sep
2017
24 Sep
'17
7:34 p.m.
On Sun, Sep 24, 2017 at 08:31:46PM +0100, mike h wrote:
duh! I tried
scanr (\x acc -> x : takeWhile (/= x) acc) [] [1,2,3,4,5,3]
which gives [[1,2,3,4,5],[2,3,4,5],[3,4,5],[4,5,3],[5,3],[3],[]]
which kind of makes sense.
M
Well done, I find that :step and :show bindings are useful too in these cases.