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Number theory Question

Find the number of permutations of n natural numbers such that the indices act as the divisors or multiples.

Eg: n = 4, ans = 8
1234, 2134, 3214, 4231, 3412, 4132, 1432, 2431

number theory

Asked by: Vamsi_Krishna_Gollapudi on April 7, 2019, 6:34 p.m. Last updated on April 7, 2019, 6:34 p.m.

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1 Answer(s)

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I see you have already found the solution...

I am posting the link for others to view...

https://leetcode.com/articles/beautiful-arrangement/

Shubham_Gupta last updated on April 7, 2019, 6:34 p.m. 0    Reply    Upvote   

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