SOLUTION: "There is a chat group of 6 friends: Andy, Benny, Cindy, Danny, Elisa and Fabio. They are close to the group but not necessarily everyone is close to everyone.
It is known that if
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-> SOLUTION: "There is a chat group of 6 friends: Andy, Benny, Cindy, Danny, Elisa and Fabio. They are close to the group but not necessarily everyone is close to everyone.
It is known that if
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Question 1025139: "There is a chat group of 6 friends: Andy, Benny, Cindy, Danny, Elisa and Fabio. They are close to the group but not necessarily everyone is close to everyone.
It is known that if two friends are close friends, they send private message to each other outside the group. Found 2 solutions by ikleyn, Edwin McCravy:Answer by ikleyn(52798) (Show Source):
