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Mar 1, 2018 at 9:47 comment added Tom Ah yes, thanks all! I forgot about that part.
Mar 1, 2018 at 9:42 comment added yotabyte Imagine for example the numbering of the prisoners is cyclic: 0,1,2,3,4,5,6,7,8,9. not even one prisoner will guess correctly according to your solution! so it is not guaranteed to free them.
Mar 1, 2018 at 9:42 comment added Bass The list does not contain the prisoner's own number.
Mar 1, 2018 at 9:41 comment added Lolgast This won't work if they all have a different number - They'll never get their own number (note the question mentions that they get a list which will contain all of the other prisoners numbers)
Mar 1, 2018 at 9:39 history answered Tom CC BY-SA 3.0