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A medical industry in Chefland is trying to make a vaccine for *COVID-19*. But, the researchers need a software to quickly answer some queries based on the previously carried out tests to speed up vaccine development. In each test, $N$ samples were tested, $i^{th}$ sample was found to have $P_i$ population of infected cells. Researchers need the total population of infected cells in some range of

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solution.cppC++17

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