#include <iostream>
#include <ctime>
#include <cstdlib>

using namespace std;

class massiv1
{
public:
	int size_;
	int **matrix;

	massiv1(int **mat, int size) :
		matrix(mat), size_(size) {}

	void srarif()
	{
		int sum = 0;
		int arif = 0;
		//int **matrix = new int*[size_];
		for (int i = 0; i < size_; i++)
		{
			//matrix[i] = new int[size_];
			for (int j = 0; j < size_; j++)
			{
				sum = sum + matrix[i][j];
			}
		}
		arif = sum / (size_*size_);
		cout << "ср ариф="<< arif << endl;
	}


	int **mod(int size)
	{
		for (int i = 0; i < size; i++)
		{
			for (int j = 0; j < size; j++)
			{
				if (matrix[i][j] < 0) matrix[i][j] = abs(matrix[i][j]);
				cout << matrix[i][j];
			}
			cout << endl;
		}
		cout << endl;
		return matrix;
	}

};

class massiv2 : public massiv1
{
public:
	massiv2(int **mat, int size) : massiv1(matrix, size) {};
};

int **GenMat(int size)
{
	int **matrix = new int *[size];
	for (int i = 0; i<size; i++)
	{
		matrix[i] = new int[size];
		for (int j = 0; j<size; j++)
		{
			matrix[i][j] = rand() %20 -10;
			cout << matrix[i][j] << "\t";
		}
		cout << endl;
	}
	cout << endl;
	return matrix;
}


int main()
{
	int n;
	setlocale(LC_ALL, "Russian");
	cout<<"Введите размерность матрицы = ";
	cin>>n;
	srand(time(0));
	int **matrix = GenMat(n);
	massiv1 mass(matrix, n);
	mass.srarif();
	mass.mod(n);
	mass.srarif();
	system("pause");
	return 0;
}