Thread: matrix!

The program need to find mean of elements in columns which are divided by 3. And to print which colmn has the greater mean
Example
For matrix:
7 9 5
17 15 30
29 34 60

Program print: 0 12 45. The greater mean: 3 column.

I wrote this code and it prints 0 12 45 idk how to find which column has greater mean?

Code:

#include <stdio.h>
#define max 50


int main()


{int n,m,i,j,k,d,br=0,suma;
int a[max][max];
int b[max][max];
    printf("Kolku redici i kolku koloni da imat matricite: \n");
    scanf("%d \n %d \n", &n,&m);


    for(i=0; i<m; i++)
    {
        for(j=0; j<n; j++)
        {


            scanf("%d", &a[i][j]);


        }
    }
printf("Prvata matrica izgleda vaka: \n");
    for(i=0; i<m; i++)
    {
        for(j=0; j<n; j++)
        {
            printf("%d ", a[i][j]);
        }
        printf("\n");


}




for(i=0; i<n; i++)
{
    suma=0;
    for(j=0; j<n; j++)
    {
        if((a[j][i]%3)==0)
        {
            suma+= a[j][i];
            br++;
        }
    }


    if(br)
    {
    int b=suma/br;
    printf("%d ", b);
    br=0;
    }
  else {
        int q=suma;
    printf("%d \n", suma);}
}


}