SUM OVER PERMUTATIONS

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Chef has an array $A$ which is a permutation of natural numbers till $n$. He defines value of an array as no of elements in the array whose neighboring elements have sum at least $k$.(Note that first and last element of an array have only 1 neighboring elements where as remaining elements have 2 neighboring elements each.) You don't know the permutation that chef has, so you decide to find the su

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solution.cppC++17

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