hdu 1757

OJ

#include <iostream>#include <cstdio>using namespace std;typedef __int64 LL;struct M{int ma[10][10];M(){memset(ma,0,sizeof(ma));}void in(){memset(ma,0,sizeof(ma));for(int i=0;i<10;i++)scanf("%d",&ma[0][i]);for(int i=1;i<10;i++)ma[i][i-1] = 1;}};M mul(M a,M b,int mod){    M temp;for(int i=0;i<10;i++)for(int j=0;j<10;j++)for(int k = 0;k<10;k++){temp.ma[i][j] += a.ma[i][k]*b.ma[k][j];temp.ma[i][j] %= mod;}return temp;}M mulmod(M a,int n,int mod){    if(n==1) return a;M temp = mulmod(a,n/2,mod);if(n%2) return mul(mul(temp,temp,mod),a,mod);else return mul(temp,temp,mod);}int ends(M a,int mod){int sum = 0;for(int i=9;i>=0;i--){sum += a.ma[0][i]*(9-i);sum %= mod;}    return sum;}int main(){int k,m;while(scanf("%d%d",&k,&m)!=EOF){         M xi; xi.in(); if(k<10) printf("%d\n",k%m); else {    xi = mulmod(xi,k-9,m);printf("%d\n",ends(xi,m));}}return 0;}