#include <iostream>
using namespace std;

int main(){

    int** arr = new int* [2];
    arr[0] = new int[10]{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
    arr[1] = new int[10]{ 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 };

    for (size_t i = 0; i < 2; i++){

        for (size_t j = 0; j < 10; j++)

            cout << arr[i][j] << ' ';

        cout << endl;
    }

    cout << endl;

    swap(arr[0], arr[1]);

    for (size_t i = 0; i < 2; i++){

        for (size_t j = 0; j < 10; j++)

            cout << arr[i][j] << ' ';

        cout << endl;
    }

    cout << endl;

    delete[] arr[0], arr[1], arr;

    return 0;
}