include iostream include stdio using namespace std class Matrix privat

#include <iostream>
#include <stdio.h>

using namespace std;

class Matrix {
    private:
        int x;
        int y;
        int **arr;

    public:
        Matrix(int x, int y) {
            this->x = x;
            this->y = y;

        }

        void setMatrix() {
            arr = new int *[x];
            for (int i = 0; i < x; i++) arr[i] = new int [y];

            for (int i = 0; i < this->x; i++) {
                for (int j = 0; j < this->y; j++) {
                    cout << "arr[" << i << "][" << j << "] = ";
                    cin >> arr[i][j];
                }
            }
        }

        void getMatrix(int a, int b) {
            for (int i = 0; i < a; i++) {
                for (int j = 0; j < b; j++) {
                    cout << arr[i][j] << " ";
                }
                cout << "\n";
            }
        }

        void getSumm(int n) {
            int summ = 0;
                for (int j = 0; j < y; j++) {
                    summ+= arr[n][j];
            }
               cout << summ << endl;
        }

};

int main() {

    setlocale(LC_ALL, "rus");

    Matrix arr(3, 3);

    arr.setMatrix();
    arr.getMatrix(2, 2);
    arr.getSumm(2);

    return 0;
}