void omp_gnp(int n, float p, std::vector<std::vector<int>> A) {
	int i, j, x;
#pragma omp parallel for private(i,j) 
	for (i = 0; i<n - 1; i++)
	{
		for (j = i + 1; j<n; j++)
		{
			if (Random() < p * 100)
			{
				A[i][j] = 1; A[j][i] = 1;
			}
			else
			{
				A[i][j] = 0; A[j][i] = 0;
			}
		}
	}
}