Function main

code/Chapter9/9-8.c:10–18

		a[i]=i;
}
int main()
{
double start_time,end_time,used_time;
start_time=omp_get_wtime();
init_array_A(A);
end_time=omp_get_wtime();
used_time=end_time-start_time;
printf("used_time=%lf seconds\n",used_time);
}