#include <omp.h>
#include <stdio.h>
int main()
{
int n;//n<=1000
int b[1000][1000];
int i, j, k;
/********************************/
FILE *fp1=fopen("test.dat","rb");
FILE *fp2;
fread(&n,sizeof(int),1,fp1);
fread(b,sizeof(int), n*n,fp1);
fclose(fp1);
/********************************/