GCD Sum

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You are provided with a set of numbers which is infinitely large. The numbers in this set are of the form :- { 22n + 1 } where n is a positive integer. Now these set of numbers are kept in sorted order. Now queries are defined on this set such that given a range of terms [X...Y] you must calculate the sum of pairwise GCD(greatest common divisor) of the entire range (inclusive of X and Y ). For

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solution.cppC++17

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