Copious Secret Santa: Theorem and coding challenges
Channel: Nikolaj-K
Date: 2023-08-19

Script discussed:
https://gist.github.com/Nikolaj-K/8dd14881447a0a3591740ce4d03ca6e8

Related links:
https://en.wikipedia.org/wiki/Directed_graph
https://en.wikipedia.org/wiki/Derangement