【Openjudge 9277 Logs Stacking堆木头】 题解

题目链接：http://noi.openjudge.cn/ch0206/9277/
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#include 
#include 
#include 
#include 
using namespace std;
struct Matrix{
    long long m[3][3];
}A,E,ans;
long long n,k, mod = 1e5;
Matrix mul(Matrix A,Matrix B)
{
    Matrix C;
    for(int i = 1; i <= 2; i++)
        for(int j = 1; j <= 2; j++)
        {
            C.m[i][j] = 0;
            for(int k = 1; k <= 2; k++)
                C.m[i][j] = (C.m[i][j]+(A.m[i][k]*B.m[k][j]))%mod;  
        }
    return C;
}
Matrix fast(Matrix A, long long k)
{
    Matrix S = E;
    while(k)
    {
        if(k&1) S = mul(S,A);
        A = mul(A,A);
        k = k>>1;
    }
    return S;
}
int main()
{
    E.m[2][2] = 1;
    E.m[1][1] = 1;
    A.m[1][1] = 1;
    A.m[1][2] = 1;
    A.m[2][1] = 1;
    scanf("%d",&n);
   for(int i = 1; i <= n; i++)
   {
      scanf("%lld",&k);
      ans = fast(A,2*k-1);
        printf("%lld\n",(ans.m[2][1])%mod);
   }
    return 0;
}

转载于:https://www.cnblogs.com/MisakaAzusa/p/9325268.html