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#define MAXSIZE 3 #define MOD 1024 class matrix{
public: typedef int elemtype; int row,col; elemtype a[MAXSIZE][MAXSIZE];
public: matrix(){} matrix(int r,int c):row(r),col(c){} ~matrix(){} void reset(int r,int c){ row = r; col = c; } void zero(){ memset(a,0,sizeof(a)); } void one(){ for(int i = 0; i < row; i++) for(int j = 0; j < col; j++) a[i][j] = 1; } void identity(){ memset(a,0,sizeof(a)); for(int i = 0; i < MAXSIZE; i++) a[i][i] = 1; }
void add_sub(const matrix &temp,matrix &now,bool isadd){ elemtype flag = isadd ? 1 : -1; for(int i = 0; i < row; i++) for(int j = 0; j < col; j++) now.a[i][j] = (a[i][j] + flag * temp.a[i][j] + MOD) % MOD; }
void operator = (const matrix &temp){ row = temp.row; col = temp.col; for(int i = 0 ; i < row; i++) for(int j = 0; j < col; j++) a[i][j] = temp.a[i][j]; } matrix operator + (const matrix &temp){ matrix now(row,col); add_sub(temp,now,true); return now; }
matrix operator - (const matrix &temp){ matrix now(row,col); add_sub(temp,now,false); return now; }
matrix operator * (const matrix &temp){ matrix now(row,col); now.zero(); for(int i = 0; i < row; i++) for(int j = 0; j < col; j++) for(int k = 0; k < col; k++) now.a[i][j] = (now.a[i][j] + a[i][k] * temp.a[k][j] + MOD) % MOD; return now; } matrix operator ^ (int m){ matrix now(row,col); matrix temp = (*this); now.identity(); while(m){ if(m&1) now = now * temp; temp = temp * temp; m /= 2; } return now; } void show(){ for(int i = 0 ; i < row; i++){ for(int j = 0; j < col; j++) printf("%d ",a[i][j]); puts(""); } } };
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