Spoj FIBOSUM - Fibonacci Sum 矩陣快速冪

題目鏈接：https://www.spoj.com/problems/FIBOSUM/ The fibonacci sequence is defined by the following relation: F(0) = 0 F(1) = 1 F(N) = F(N - 1) + F(N - 2), N >= 2 Your task is very simple. Given two non-ne

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