Count Permutations

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Problem Statement Chef recently studied about binary searched trees . He also read about balanced Binary Search Trees . In this problem , a Binary Tree with 'N' elements is called balanced if its height is ceil(log(N + 1)) where ceil(x) function denotes the smallest integer >= x and log(N + 1) is in base 2. A permutation of integers [1 , N] is a sequence where each element from 1 to N occurs ex

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solution.cppC++17

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