Originally Posted by omk3
Do the prisoners have this information? I would guess they only know about the other 99 people, not all 100
You have this information The prisoners do not.
Prisoners with green ink only know that they can see 55 prisoners with blue ink and 44 with green ink.
Prisoners with blue ink only know that they can see 54 prisoners with blue ink and 45 with green ink.
They are not allowed discuss the number of prisoners they see with various ink colours with each other. And they are all such puzzle nerds they won't even try to cheat.