Number Permutation

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Number Permutation You are writing out a list of numbers. Your list contains all numbers with exactly Di digits in its decimal representation which are equal to i, for each i between 1 and 9, inclusive. You are writing them out in ascending order. For example, you might be writing every number with two '1's and one '5'. Your list would begin 115, 151, 511, 1015, 1051. Given N, the last number y

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solution.cppC++17

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