问题描述：
杭电 ACM
小弟想知道为什么循环周期是49 呢,
A number sequence is defined as follows:
f(1) = 1,f(2) = 1,f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.
Given A,B,and n,you are to calculate the value of f(n).
Input
The input consists of multiple test cases.Each test case contains 3 integers A,B and n on a single line (1
小弟想知道为什么循环周期是49 呢,
A number sequence is defined as follows:
f(1) = 1,f(2) = 1,f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.
Given A,B,and n,you are to calculate the value of f(n).
Input
The input consists of multiple test cases.Each test case contains 3 integers A,B and n on a single line (1
问题解答：
我来补答展开全文阅读