It was a bit fun comparing the Haskell version and the C# version:
https://github.com/wolfgarbe/SymSpell/blob/master/SymSpell/S...
https://github.com/cbeav/symspell/blob/master/src/SymSpell.h...
https://github.com/wolfgarbe/SymSpell/blob/master/SymSpell/S...
https://github.com/cbeav/symspell/blob/master/src/SymSpell.h...