Virat and his challenge

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Virat is a guy who likes solving problems very much. Today Virat’s friend Jadega gave him a problem to solve. Jadeja gives Virat three numbers: N, L and R and Virat has to find out the count of numbers between L and R (both inclusive) which are divisible by at least 1 prime number belonging to range 1 to N (inclusive). Though Virat likes to solve problems, this one seems too hard for him to solve

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solution.cppC++17

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