Name

Solve some Takuzu puzzles.

Notes

Interesting part is abstracting common parts between row and columns.

Interestingly, Array(Row | Column | Cell) gets turned into Array(Tuple(UInt32?, UInt32?)) which isn't quite what I want. I wish I could have had this as an enum instead, if the enum variants could have values associated with them.

For example, Row of UInt32 | Column of UInt32 | Cell of Tuple(UInt32, UInt32) - more like data in Haskell.

This code allows m*n grids, even if m != n, as long as both are even.

Source

https://www.reddit.com/r/dailyprogrammer/comments/3pwf17/