题目链接:uva 10518 - How Many Calls? 公式f(n) = 2 * F(n) - 1, F(n)用矩阵快速幂求. #include <stdio.h> #include <string.h> long long n; int b; struct state { int s[2][2]; state(int a = 0, int b = 0, int c = 0, int d = 0) { s[0][0] = a, s[0][1] = b, s[1][0] =…
Yet another Number Sequence Let’s define another number sequence, given by the following function:f(0) = af(1) = bf(n) = f(n − 1) + f(n − 2), n > 1When a = 0 and b = 1, this sequence gives the Fibonacci Sequence. Changing the values…