C Program to Diagonally Add elements | Diagonal addition of elements of matrix in C

C Program to Addition of Diagonal Elements in Matrix | C Program to Diagonally Add elements | Diagonal addition of elements of matrix in C

#include
#include

void main()
{
int i,j,a[10][10],sum,m,n;

/* m - Number of rows 
   n - Number of Columns   */

printf("\n Enter the number of Rows : ");
scanf ("%d",&m);

printf("\n Enter the number of Columns : ");
scanf ("%d",&n);

/* Accept the Elements in m x n Matrix */

for(i=0;i<m;i++ )
       for(j=0;j<n;j++)
       {
       printf("Enter the Element a[%d][%d] : ", i , j);
       scanf("%d",&a[i][j]);
       } 

/* Addition of all Diagonal Elements */

sum = 0;

for(i=0;i<m;i++ )
       for(j=0;j<n;j++)
       {
        if ( i == j )   
        sum = sum + a[i][j]; 
       } 

/*  Print out the Result */

printf("\nSum of All Diagonal Elements in Matrix : %d",sum); 

getch();

}

Enter the number of Rows : 2

Enter the number of Columns : 2

Enter the Element a[0][0] : 1
Enter the Element a[0][1] : 1
Enter the Element a[1][0] : 1
Enter the Element a[1][1] : 1

The Addition of All Elements in the Matrix : 2