Find length of longest Fibonacci series

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You are given a range [x, y] (inclusive). Determine the length of longest Fibonacci series that exists in [x, y]. A Fibonacci series is constructed by adding last two consecutive elements in series starting from 0 1, e.g. 0 1 1 2 3 5 8 13 ... Input First line of input contains a single integer, T, the total number of test-cases. Each of next T lines contains two space separated integers, x & y

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solution.cppC++17

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