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Discussion of Problem 1994. The Emperor's plan

BUET_Bats Can't understand the test case [1] // Problem 1994. The Emperor's plan 26 Oct 2013 15:48
Can anyone please describe the test case? How can it be as low as 0.66667?
Fernando Fonseca Re: Can't understand the test case // Problem 1994. The Emperor's plan 12 Nov 2013 17:59
- First night one good senator dies. We have 2 good senators and 1 spy.

- First day senators choose to kill 2 people. They have a 66.6% chance that they get the spy and a good guy remains, 33.3% chance that the spy lives.