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Prolog (SWI), 42 bytes R-S:-S is R*R;R<S,M is R+1,M-S. f(S):-0-S. Try it online!
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#1: Initial revision
by
user
·
2021-08-05T14:04:14Z (about 3 years ago)
# [Prolog (SWI)], 42 bytes
R-S:-S is R*R;R<S,M is R+1,M-S.
f(S):-0-S.
[Try it online!][TIO-kryzpn24]
[Prolog (SWI)]: http://www.swi-prolog.org
[TIO-kryzpn24]: https://tio.run/##KyjKz8lP1y0uz/z/P0g32Eo3WCGzWCFIK8g6yCZYxxfM0TbU8dUN1uNK0wjWtNI1ADL//0/TMNDUAwA "Prolog (SWI) – Try It Online"