22SP - 06 Lantern Festival

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Lantern festivals are a tradition in China. Instead of letting them go Tangled-style, Andrew wants to hang lanterns on his house. He has **n** distinct integer labeled lanterns from **0** to **n-1**. His house only has room to attach exactly one lantern, but he can hang lanterns under other lanterns. To do so, a lantern can have a horizontal stick attached beneath it with exactly one lantern attac

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solution.cppC++17

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