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dc, 9 bytes _?dvd*-^p Try it online! Comparisons are expensive in dc, so you have to get a bit creative. I came up with $0^{n-\lfloor\sqrt{n}\rfloor^2}$.
#1: Initial revision
by
orthoplex
·
2022-02-11T16:38:56Z (over 4 years ago)
# [dc], 9 bytes
_?dvd*-^p
[Try it online!][TIO-kzimuy4r]
Comparisons are expensive in dc, so you have to get a bit creative. I came up with $0^{n-\lfloor\sqrt{n}\rfloor^2}$.
[dc]: https://www.gnu.org/software/bc/manual/dc-1.05/html_mono/dc.html
[TIO-kzimuy4r]: https://tio.run/##S0n@/z/ePqUsRUs3ruD/fxNLAA "dc – Try It Online"