CODE EXAMPLE FOR CPP

2d array c++

//* 2D arrays
int n, m;
cout << "Enter row and column: ";
cin >> n >> m;
int arr[n][m];
for (int i = 0; i < n; i++)
{
  for (int j = 0; j < m; j++)
  {
    cin >> arr[i][j];
  }
}

cout << "
Showing array
";

for (int i = 0; i < n; i++)
{
  for (int j = 0; j < m; j++)
  {
    cout << arr[i][j] << " ";
  }
  cout << endl;
}