Rihanna and Fibonacci

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Problem description. Rihanna wonders why the starting numbers of Fibonacci series are always 0 and 1. She didn’t like that and thus want to change the starting numbers. So given the 1st and 2nd numbers of series as a and b respectively. Find out the ‘r’ th number in the series for given r. Input First line has integer T, the number of test cases Next T lines contain T test cases each line co

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solution.cppC++17

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