## Problem of the Day #394: Permutations with Shared Elements
*April 16, 2012*

*Posted by Alex in : potd , trackback*

Find the probability that two random permutations of the integers from $1$ to $N$ share exactly one element.

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## Problem of the Day #394: Permutations with Shared Elements
*April 16, 2012*

*Posted by Alex in : potd , trackback
*

Find the probability that two random permutations of the integers from $1$ to $N$ share exactly one element.

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