제출 #9683

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
9683	2014-09-28 08:05:26	maniac	Phibonacci (kriii2_P)	C++98	1 / 4	0 ms	1088 KiB

P

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#include <cstdio>
const long long MOD(1000000007);
typedef struct matrix{
    long long d[2][2];
}Matrix;
 
Matrix F={1, 1, 1, 0};
 
Matrix m_Mul(Matrix A, Matrix B){
    Matrix C;
    C.d[0][0]=(A.d[0][0]*B.d[0][0]+A.d[0][1]*B.d[1][0])%MOD;
    C.d[0][1]=(A.d[0][0]*B.d[1][0]+A.d[0][1]*B.d[1][1])%MOD;
    C.d[1][0]=(A.d[1][0]*B.d[0][0]+A.d[1][1]*B.d[1][0])%MOD;
    C.d[1][1]=(A.d[1][0]*B.d[1][0]+A.d[1][1]*B.d[1][1])%MOD;
    return C;
}
 
Matrix m_Power(Matrix A, long long n){
    if(n>1){
        A=m_Power(A, n/2);
        A=m_Mul(A, A);
        if(n&1)
            A=m_Mul(A, F);
    }
    return A;
}
 
int main(){
 
 
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