Count the Count

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You are given an array $A$ consisting of $N$ integers such that the value at the index is the index itself.($1$ based indexing) Now, Ayush wonders how many such arrays can be created by shuffling the elements of the original array $A$, such that the absolute difference of the value at that index and that index is atmost 1. More formally, Ayush wishes to find the count of arrays formed afte

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solution.cppC++17

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