#include <stdio.h>
void main ()
{
static int ma[10][10];
int i,j,m,n,a=0,sum=0;
printf (“Enter the order of the matrix \n”);
scanf (“%d %d”,&m,&n);
if ( m == n )
{
printf (“Enter the co-efficient s of the matrix\n”);
for (i=0;i<m;++i)
{
for (j=0;j<n;++j)
{
scanf (“%d”,&ma[i][j]);
}
}
printf (“The given matrix is \n”);
for (i=0;i<m;++i)
{
for (j=0;j<n;++j)
{
printf (” %d”,ma[i][j]);
}
printf (“\n”);
}
for (i=0;i<m;++i)
{
sum = sum + ma[i][i];
a = a + ma[i][m-i-1];
}
printf (“\nThe sum of the main diagonal elements is = %d\n”,sum);
printf (“The sum of the off diagonal elements is = %d\n”,a);
}
else
printf (“The given order is not square matrix\n”);
} /* End of main() */
/*——————————————————–
Output
Enter the order of the matrix
3 3
Enter the co-efficient s of the matrix
1 2 3
4 5 6
7 8 9
The given matrix is
1 2 3
4 5 6
7 8 9
The sum of the main diagonal elements is = 15
The sum of the off diagonal elements is = 15
Run 2
Enter the order of the matrix
2 3
The given order is not square matrix
——————————————————–*/
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