How do I write a matrix? it prints random numbers

Question

I'm trying write a code that matrix 3*3 but it doesn't work correctly. it prints random numbers. what I did wrong?

    int matrix[3][3];   
    int i,j;

    for(i=0;i<3;i++)
    {
      for(j=0;j<3;j++)
      {
        scanf("%d",&matrix[i][j]);
      }
    }
    for(i=0;i<3;i++)
    {
      for(j=0;j<3;j++)
      {
        printf("%d ",&matrix[i][j]);
      }
    }

It's not printing random numbers; it is printing the address of of each element (`&matrix[i][j]`) — bigwillydos, Sep 07 '18 at 23:13
If you'd turned on compiler warnings, like using `Wall` with `gcc`, you would have seen this: `matrix_print.c:19:16: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘int *’ [-Wformat=] printf("%d ",&matrix[i][j]); ~^ ~~~~~~~~~~~~~ %n ` — bruceg, Sep 08 '18 at 00:08
Read [How to debug small programs](https://ericlippert.com/2014/03/05/how-to-debug-small-programs/). Stackoverflow is not a *fix-my-bugs* site — Basile Starynkevitch, Sep 08 '18 at 04:52
@AkınTokluoglu it shows **warnings** and not errors. [How to turn on (literally) ALL of GCC's warnings?](https://stackoverflow.com/q/11714827/995714) — phuclv, Sep 08 '18 at 05:01
You are right. I'm new to this. I will pay attention to them from now on. — Carl Jackson, Sep 08 '18 at 10:33

score 3 · Accepted Answer · answered Sep 07 '18 at 22:52

3

You should remove & while printing values
Use below code for printing.

 printf("%d ",matrix[i][j]);

answered Sep 07 '18 at 22:52

Mayur

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@AkınTokluoglu Next time, enable all warnings when compiling your code (e.g. with `gcc -Wall -Wextra -g`) – Basile Starynkevitch Sep 08 '18 at 04:53

How do I write a matrix? it prints random numbers

1 Answers1