Potion Potency

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Severus Snape has a grudge on Gryffindor students. He has given them a hard question for their potions exam. You have to help the Gryffindors to pass the test. You are given N potions. Let Pi denote the potency of the ith potion. You have to mix two potions such that the sum of their potencies is exactly equal to a given number M. You have to tell whether it is possible to create the required po

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solution.cppC++17

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