Special Permutation

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Joffrey likes permutations .One day as he is walking in the corridors of Red Keep he invented a permutation of his own called "special permutation". A special permutation of order $n$ is a sequence of integers defined as follow: - Every element in special permutation is in the range $[1, n]$ - All numbers in $[1, n]$ will occur at least once in the permutation - The maximum number in speci

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solution.cppC++17

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