Question

I can’t understand why I get the run time error:

the variable ia is being used without being initialized.

However, as far as I can see, I have initialized it.

#include <iostream>
using namespace std;

int main()
{
    //array dimensions
    const int row_size = 2;
    const int col_size = 4;

    //array definition
    int ia[row_size][col_size] = {{0, 1, 2, 3},{5, 6, 7, 8}};

    cout << ia[2][4];

    system("PAUSE");
    return 0;
}

Answer 1

C++ array indexes are zero-based. So to access the fourth column of the second row, you need to access ia[1][3].