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For challenges where an exact output is not required but some property must still be fulfilled.

39 votes
57 answers
4k views

Output a random unary string

Your task is simple: output the letter x a random number of times. Every possible length of xs must have a non-zero probability of being output. Of course, there must be some lengths whose probabiliti …
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37 votes
20 answers
3k views

Egyptian fraction representations of 1

An Egyptian fraction is a representation of a rational number using the sum of distinct unit fractions (a unit fraction is of the form \$ \frac 1 x \$ where \$ x \$ is a positive integer). For all[1] …
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