Is it possible to have this in 2 dimensional array?

Question

1.00/5 (1 vote)

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can you please tell me why is it possible to have codes like this?

C++

#include <iostream>

using namespace std;

int main()
{
    int arr[4][4];
    int a, b;
    int temp;
    cout << "Enter four numbers: \n";
    for (a=0; a<4; a++)
    {
        cin >> arr[a][a];  > this is what i'm pertaining and why?    
    }

What I have tried:

I just wanted to know why cin >> arr[a][a] is okay to use

Posted 7-Mar-20 0:14am

jusjua

Updated 7-Mar-20 7:25am

KarstenK

v2

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KarstenK 7-Mar-20 13:26pm

be aware that you only need a one dimensional array. Look at the arr in the debugger window that you only crossfill that array.

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phil.o · Answer 1 · 2020-03-07T00:16:00

Solution 1

Please have a look at Is it possible to have code like this?[^], which oddly seems quite identical to your question.

Posted 7-Mar-20 0:16am

phil.o

Comments

OriginalGriff 7-Mar-20 6:35am

I'm guessing same homework.
(I'm kinda hoping they both copy what I wrote word-for-word ... but I'm evil like that)

phil.o 7-Mar-20 6:48am

:D

Patrice T · Answer 2 · 2020-03-07T00:43:00

Quote:
Is it possible to have this in 2 dimensional array?

Yes, it is possible.

Quote:
can you please tell me why is it possible to have codes like this?

Because the language permit it and programmer want it that way which is just legal.

The question you missed: Is it sensible to code that way?
Form the code I see, it is 1D program fitted in a 2D array, there is no reason to do it that way, it complicate things for no reasons.