Sum of Diagonal Matrix

#include
#include
void main()
{
int i,j,n,sum=0,sum2=0,a[50][50];
clrscr();
printf("Enter Matrix Row & Column, Row and Column must be same : ");
scanf("%d",&n);
for(i=0;i for(j=0;j {
printf("Enter Martix Value [%d][%d] : ",i,j);
scanf("%d",&a[i][j]);
sum2=sum2+a[i][j];
}
for(i=0;i sum=sum+a[i][i];
/*OR
for(i=0;i for(j=0;i {
if(i==j)
sum=sum+a[i][i];
}
*/
clrscr();
printf("Given Matrix :-\n");
for(i=0;i {
for(j=0;j printf("\t%d",a[i][j]);
printf("\n");
}
printf("\nSum of Diagonal Matrix is %d",sum);
printf("\nSum of Matrix is %d",sum2);
getch();
}
Output
Enter Matrix Row & Column, Row and Column must be same : 3
Enter Martix Value [0][0] : 1
Enter Martix Value [0][1] : 2
Enter Martix Value [0][2] : 3
Enter Martix Value [1][0] : 4
Enter Martix Value [1][1] : 5
Enter Martix Value [1][2] : 6
Enter Martix Value [2][0] : 7
Enter Martix Value [2][1] : 8
Enter Martix Value [2][2] : 9
Given Matrix :-
1 2 3
4 5 6
7 8 9
Sum of Diagonal Matrix is 15
Sum of Matrix is 45