Square free Integer

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In mathematics, a square-free integer is one divisible by no perfect square, except 1. For example, 10 is square-free but 18 is not, as it is divisible by 9. Some square-free numbers are 1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 26, 29, 30, 31, 33, 34, 35, 37, 38, 39.... Your job is to calculate Nth square free number. For Example: if N=1 then output is 1 and if N=7 then output is

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solution.cppC++17

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