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Challenges related to elementary arithmetic.

3 votes

(RGS 1/5) Binary multiples

C# (Visual C# Interactive Compiler), 53 49 bytes turns out Max can cast chars to codes implicitly I tried a recursive version, but it was longer. Can't think of a way to replace the loop with LINQ.. …
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1 vote
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Integer Logarithm

Sledgehammer, 11 bytes Alternatively, 83 bits. I ended up forgetting to actually answer this with Sledgehammer for a while... ⣜⢍⡪⡱⣰⡵⠅⣧⣼⣅⣸ Compressed from this Wolfram Language code: If[NumberQ[ …
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