Permutation Split

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Flippy the bird has a permutation p of length n while Fluffy the squirrel has a permutation q of length n. Flippy the bird wants his permutation to be the same as Fluffy's permutation. He can cut the permutation into several parts, and rearrange those parts so that the resulting permutation is equal to q. He wants to cut the permutation into the minimum possible number of pieces. Can you help him

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solution.cppC++17

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