number pattern printing with matrix

mat.c

#include <stdio.h>
int main(void)
{
int m,n;
//accept the number 'n' from the user
printf ("ENTER the value of n");
printf ("\n");
scanf("%d",&n);
m=n;
int a[n][n];
int i,j,k,l;

// for initializing all elements in the matrix as 0
for(i=0;i<m;i++)
    for(j=0;j<n;j++)
        a[i][j]=0;

   i=1;
    for(j=0;j<m-j;j++)
    {
        if(i<((m*n)+1))
        {
            //print rows from top
            for(k=j;k<n-j;k++)
                if(a[j][k]==0)
                    a[j][k]=i++;
       
       
        k=k-1;
        //print columns from left hand side
        for(l=j+1;l<m-j;l++)
                if(a[l][k]==0)
                    a[l][k]=i++;
                   
        l=l-2;
        //print rows from bottom
            while(l>j)
                if(a[k][l]==0)
                    a[k][l--]=i++;
           
        //print columns from right hand side   
        while(k>j)
            if(a[k][j]==0)
                 a[k--][j]=i++;
     
    }  
}

// for printing the matrix
             for(i=0;i<m;i++)
           { 
              for(j=0;j<n;j++)
                {
                    printf("%d\t",a[i][j]);
                  }
                printf("\n");
           }

    return 0;
}

OUTPUT:

ENTER the value of n: 8
1 2 3 4 5 6 7 8
28 29 30 31 32 33 34 9
27 48 49 50 51 52 35 10
26 47 60 61 62 53 36 11
25 46 59 64 63 54 37 12
24 45 58 57 56 55 38 13
23 44 43 42 41 40 39 14
22 21 20 19 18 17 16 15