91 lines
1.4 KiB
Plaintext
91 lines
1.4 KiB
Plaintext
#include "sylib.h"
|
|
#define N 1024
|
|
|
|
void mm(int n, int A[][N], int B[][N], int C[][N]){
|
|
int i, j, k;
|
|
|
|
i = 0; j = 0;
|
|
while (i < n){
|
|
j = 0;
|
|
while (j < n){
|
|
C[i][j] = 0;
|
|
j = j + 1;
|
|
}
|
|
i = i + 1;
|
|
}
|
|
|
|
i = 0; j = 0; k = 0;
|
|
|
|
while (k < n){
|
|
i = 0;
|
|
while (i < n){
|
|
if (A[i][k] == 0){
|
|
i = i + 1;
|
|
continue;
|
|
}
|
|
j = 0;
|
|
while (j < n){
|
|
C[i][j] = C[i][j] + A[i][k] * B[k][j];
|
|
j = j + 1;
|
|
}
|
|
i = i + 1;
|
|
}
|
|
k = k + 1;
|
|
}
|
|
}
|
|
|
|
int A[N][N];
|
|
int B[N][N];
|
|
int C[N][N];
|
|
|
|
int main(){
|
|
int n = getint();
|
|
int i, j;
|
|
|
|
i = 0;
|
|
j = 0;
|
|
while (i < n){
|
|
j = 0;
|
|
while (j < n){
|
|
A[i][j] = getint();
|
|
j = j + 1;
|
|
}
|
|
i = i + 1;
|
|
}
|
|
i = 0;
|
|
j = 0;
|
|
while (i < n){
|
|
j = 0;
|
|
while (j < n){
|
|
B[i][j] = getint();
|
|
j = j + 1;
|
|
}
|
|
i = i + 1;
|
|
}
|
|
|
|
starttime();
|
|
|
|
i = 0;
|
|
while (i < 5){
|
|
mm(n, A, B, C);
|
|
mm(n, A, C, B);
|
|
i = i + 1;
|
|
}
|
|
|
|
int ans = 0;
|
|
i = 0;
|
|
while (i < n){
|
|
j = 0;
|
|
while (j < n){
|
|
ans = ans + B[i][j];
|
|
j = j + 1;
|
|
}
|
|
i = i + 1;
|
|
}
|
|
stoptime();
|
|
putint(ans);
|
|
putch(10);
|
|
|
|
return 0;
|
|
}
|