2 dimensional array

[Lyleo]

Hi there
I've just started learning 2d arrays and I'm trying to assign
the 2nd vertical element and the 4th horizontal element
with values but it only assigns and displays the 2nd vertical
element (you know the first dimension):

// 2 dimensional arrays
#include <iostream>
using namespace std;

int main() {

int two_dimensional[3][5];
two_dimensional[1][3] = 46, 45;
cout << two_dimensional[1][3];
cin.get();
return 0;
}

Lyle

[helios]

two_dimensional[1][3] = 46, 45;

What are you trying to do here? What do you think this line should do?

[blackcoder41]

two_dimensional[1][3] can only hold one value.

two_dimensional[1][3] = 46, 45;
is like

two_dimensional[1][3] = 46;
45;

[quirkyusername]

I think you lack basic knowledge of what a multi-dimensional array is. A 3 by 5 array of integers only stores 15 integers (3*5), in 3 rows and 5 columns. Each element does not store multiple integers.

To set the element at row a, column b:

two_dimensional[a][b] = 1;

To access the element at row a, column b:

int i = two_dimensional[a][b];

[Lyleo]

Hi there I seem to have gotten it right, what I wanted to do was:
assign row 1, column 3 with: 46
assign row 2, column 1 with: 56

// 2 dimensional arrays
#include <iostream>
using namespace std;

int main() {

int two_dimensional[3][5];
two_dimensional[1][3] = 46;
two_dimensional[2][1] = 56;
cout << two_dimensional[1][3] << endl << two_dimensional[2][1];
cin.get();
return 0;
}

Thanks for the posts:)