Yennefer or Triss

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Geralt of Rivia has accepted a contract to kill a deadly monster in a nearby forest. He is allowed to choose at most one mage to help him fight the monster. He can choose between Yennefer and Triss to help him. In order to make a decision, Geralt looked at his past $N$ contracts. In each of his past contracts, Geralt either took the help of only one of the mages or no help at all. For the current

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solution.cppC++17

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