#include <iostream>
#include <fstream>
#include <iomanip>

using namespace std;

double** create_tab(int rowsAmmount, int columnsAmmount) {
    double** tab = new double*[rowsAmmount + 1];
    for (int i = 0; i < columnsAmmount + 1; i++) {
        tab[i] = new double[rowsAmmount + 1];
    }
    return tab;
}

void read_tab(double** tab, int rows, int columns) {
    for (int i = 0; i < rows; i++) {
        cout << "Podaj " << i + 1 << " wiersz: ";
        for (int j = 0; j < columns; j++) {
            cin >> tab[i][j];
        }
    }
}

void calculate_averages(double** tab, int rows, int columns) {
    double sum;
    for (int i = 0; i < rows; i++) {
        sum = 0;
        for (int j = 0; j < columns; j++) {
            sum += tab[i][j];
        }
        tab[i][columns] = sum / columns;
    }
    for (int j = 0; j < columns; j++) {
        sum = 0;
        for (int i = 0; i < rows; i++) {
            sum += tab[i][j];
        }
        tab[rows][j] = sum / rows;
    }
    tab[rows][columns] = 0.0;
}

void display(double** tab, int rows, int columns) {
    for (int i = 0; i < rows + 1; i++) {
        for (int j = 0; j < columns + 1; j++) {
            cout << setw(4) << setprecision(3) << tab[i][j] << " ";
        }
        cout << endl;
    }
}

int main() {
    int rows, columns;
    cout << "Podaj ilosc wierszy tablicy: ";
    cin >> rows;
    cout << "Podaj ilosc kolumn tablicy: ";
    cin >> columns;
    double** tab = nullptr;
    tab = create_tab(rows, columns);
    read_tab(tab, rows, columns);
    calculate_averages(tab, rows, columns);
    display(tab, rows, columns);
    cout << endl;

    system("pause");
    return 0;
}