Po and Factorials

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Master Oogway has forseen that a panda named Po will be the dragon warrior, and the master of Chi. But he did not tell anyone about the spell that would make him the master of Chi, and has left Po confused. Now Po has to defeat Kai, who is the super villian, the strongest of them all. Po needs to master Chi, and he finds a spell which unlocks his powerful Chi. But the spell is rather strange. It a

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solution.cppC++17

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