Baga and Prime Numbers

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Baga boy who works under Jethalel is bad in mathematics which is not good for Jethalel's business. So Mr. Bhide , a school teacher, decided to teach him prime numbers. After teaching all about prime numbers Mr. Bhide gave Baga a task which is as follows : Bhide will give Baga a range [ L , R ] and Baga has to answer the count of all the prime numbers lying in that range. Help Baga find the number

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solution.cppC++17

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