Hi Friend,

Try the following code:

#include <stdio.h>
#include <conio.h>

void main(){
int d[3][3]={1,2,6,3,8,5,5,6,7};
int k=0,j=0;
int sum1=0,sum2=0;
for(j=0;j<3;j++){
for(k=0;k<3;k++)
printf(" %3d",d[j][k]);
printf("\n");
}
for(j=0;j<3;j++)
{
sum1=sum1+d[j][j];
}
k=3-1;
for(j=0;j<3;j++)
{
if(k>=0){
sum2=sum2+d[j][k];
k--;
}
}
printf("Sum of First diagonal= %d\n",sum1);
printf("Sum of Second diagonal= %d",sum2);
getch();
}

Thanks