1 pointby amichail10 months ago2 comments

tromp10 months ago
The real challenge, for humans as well, is to code an efficient solution. Which probably requires solving the first part.
curiousObject10 months ago
What operation or transformation does rotate mean?
- amichail10 months ago
  It's just a rotation on a single column or a single row. This means you would shift the items one position with wrap around.
  - curiousObject10 months ago
    Thanks. I asked this to help you make your question clearer if you resubmit it.
    It’s an interesting question for HN, so you should try resubmitting it
    Perhaps there are some useful ideas in this code: https://www.chiark.greenend.org.uk/~sgtatham/puzzles