杭电oj3306:Another kind of Fibonacci(矩阵快速幂)
Another kind of Fibonacci 题目链接 Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description As we all known , the Fibonacci series : F(0) = 1, F(1) = 1, F(N) = F(N - 1) + F(N - 2) (N >= 2).Now we define another kind of Fibonacci : A(0) = 1 , A(1) = 1 , A(N) = X * A(N - 1) + Y * A(N - 2) (N >= 2).And we want to Calculate S(N) , S(N) = A(0) 2 +A(1) 2 +……+A(n) 2 . Input There are several test cases. Each test case will contain three integers , N, X , Y . N : 2<= N <= 2 31 – 1 X : 2<= X <= 2 31 – 1 Y : 2<= Y <= 2 31 – 1 Output For each test case , output the