25 lines
776 B
Plaintext
25 lines
776 B
Plaintext
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:: Hoon 101: Assignment 3a. Comment each line of code to tell the reader what the code is doing.
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:: Comments should be written as "breathing comments" as suggested in the Hoon Style Guide: https://urbit.org/docs/learn/hoon/style/
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:: create a gate, with the sample @ud, given the face n
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::
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|= n=@ud
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:: attach a 't' faced @ud to the subject, with the value 1
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::
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=/ t=@ud 1
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:: create and execute a gate, such that we can recurse back to this point
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::
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:: if n is 1, return the next child, otherwise the one after
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::
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?: =(n 1)
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:: at the end, return our total
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::
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t
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:: otherwise recurse with n minus one,
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:: and t multiplied by n. note t is
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:: not reset with the recurse, as it
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:: is attached before our recurse point
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::
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$(n (dec n), t (mul t n))
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