How can I count the number of permutations? - Codeforces

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How can I count the number of permutations?

Revision en2, by codemode, 2019-01-24 20:29:30

Thanks :)

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permutations

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Revisions

	Rev.	Lang.	By	When	Δ	Comment
	en2		codemode	2019-01-24 20:29:30	257
	en1		codemode	2019-01-24 20:03:05	315	Initial revision (published)