#include <iostream>
using namespace std;
int main()
{
int m = 20, n = 4;
int k=0, d=0, A;
int **array = new int*[m];
for (int i = 0; i < m; i++)
{
array[i] = new int[n];
}
for (int i = 0; i < m; i++)
{
for (int j = 0; j < n; j++)
{
array[i][j] = rand() % 20;
cout << array[i][j] << "\t";
}
cout << endl;
}
//-------------------------
cout << endl << "Enter k - quantity rows " << endl;
cin >> k;
d += k;
for (int i = 0; i < m; i++)
{
for (int j = 0; j < n; j++)
{
if (i < k)
{
A = array[i][j];
array[i][j] = array[m - d][j];
array[m - d][j] = A;
}
}
d--;
}
for (int i = 0; i < m; i++)
{
for (int j = 0; j < n; j++)
{
cout << array[i][j] << "\t";
}
cout << endl;
}
//--------------------------
for (int i = 0; i < m; i++)
{
delete[] array[i];
}
delete[] array;
}
