05AB1E
05AB1E copied to clipboard
`.I` n'th permutation builtin doesn't work correctly for bit-lists
I was working on this 05AB1E port of this J answer for the Shift Braille down codegolf challenge, but I was getting incorrect results.
When I used a regular 14L
list, the resulting permutation was as expected however.
Apparently the .I
doesn't work correctly on bit-lists for some reason. If I prepend a ƶ
and append a Ā
, the permutations builtin does work correct:
Try it online. (I would have expected the same result here.)
EDIT: ƶ
+ Ā
doesn't always work as work-around, so I have to use ā<
and è
instead. Discovered when I was working on my answer here.