[R] Help to write the R-code, please

[Jeff Newmiller]

On December 5, 2019 3:39:07 AM PST, "Александр Дубровский" <dubrovvsskkyy using gmail.com> wrote:
>Task:
>A family of sets of letters is given. Find K for which one can
>construct a
>set consisting of K letters, each of them belonging to exactly K sets
>of a
>given family.

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This is a plain-text mailing list, meaning that some unspecified text version of your HTML-formatted messages will reach us which reduces our ability to understand you.

>______________________________________________

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>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

Do this. It warns you that this list is not for homework help, nor is it a do-my-work-for-me forum.
-- 
Sent from my phone. Please excuse my brevity.