Jump to content

Secret Santa/4 people/Fixed point free/Exercise

Edit links
From Wikiversity

Gabi Hochster, Heinz Ngolo, Lucy Sonnenschein and Mustafa Müller want to play Secret Santa. That is, every child gets a gift from exactly one of the other (!) children. How many possibilities are there?

Create a solution
Retrieved from "https://en.wikiversity.org/w/index.php?title=Secret_Santa/4_people/Fixed_point_free/Exercise&oldid=2674371"