/* PROGRAM TO FIND THE SUM OF DIAGONAL ELEMENTS */
#include<stdio.h>
#include<conio.h>
void main()
{
int aray[10][10],i,j,row,col,sum=0;
clrscr();
printf(“\n\nENTER THE NUMBER OF ROWS : “);
scanf(“%d”,&row);
printf(“\n\nENTER THE NUMBER OF COLUMNS :”);
scanf(“%d”,&col);
printf(“\n\nENTER THE ELEMENTS OF MATRIX \n\n”);
for(i=1;i<=row;i++)
{
for(j=1;j<=col;j++)
{
scanf(“%d”,&aray[i][j]);
}
}
for(i=1;i<=row;i++)
{
for(j=1;j<=col;j++)
{
if(i==j)
sum=sum+aray[i][j];
}
}
printf(“\n\n\t\tTHE SUM OF DIAGONAL ELEMENTS IS : %d”,sum);
getch();
}