Torn Pages

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The classes are over and it's time to go home but Bhrigudov has a problem. His friend Polingy, being mean, tore a page from his math book and promises to return the page only when Bhrigudov answers a simple question. He simply asks Bhrigudov to tell him the page number on the torn page by telling him the sum of all the remaining page numbers of the torn book. As it's getting late Bhrigudov does no

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solution.cppC++17

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