Y by Adventure10 and 1 other user
There are
rooms in a sauna, each has unlimited capacity. No room may be attended by a female and a male simultaneously. Moreover, males want to share a room only with males that they don't know and females want to share a room only with females that they know. Find the biggest number
such that any
couples can visit the sauna at the same time, given that two males know each other if and only if their wives know each other.


