C Program for find a matrix is Magic Square

C Program for find a matrix is magic square.

/*this program input the a  square matrix and after checked  that print the message entered matrix is magic    

   square or not*/

#include<stdio.h>

#include<conio.h>

void main()

{

 int matrix[10][10],n,i,j,r_sum,c_sum,rd_sum,ld_sum;

 int sum[10],f=0;

  r_sum=c_sum=rd_sum=ld_sum=0;

 clrscr();

                 printf("Enter the Size of Square Matrix :");

                 scanf("%d",&n);

                printf("Enter the Matrix :");

                 for(i=0;i<n;i++)

                  for(j=0;j<n;j++)

                                scanf("%d",&matrix[i][j]);

                 printf("Enterd Matrix is :\n");

                  for(i=0;i<n;i++)

                  {

                  for(j=0;j<n;j++)

                                printf("%d\t",matrix[i][j]);

                                  printf("\n");

                  }

                  for(i=0;i<n;i++)

                                   sum[i]=0;

                 for(i=0;i<n;i++)

                 { r_sum=0;

                   c_sum=0;

                                  for(j=0;j<n;j++)

                                  {

                                   r_sum=r_sum+matrix[i][j];

                                   c_sum=c_sum+matrix[j][i];

                                   if(i==j)

                                                   ld_sum=ld_sum+matrix[i][j];

                                   if((i+j)==n-1)

                                                   rd_sum=rd_sum+matrix[i][j];

                 }

                  sum[i]=r_sum;

                  sum[i+n]=c_sum;

                 }

                 sum[n+i]=rd_sum;

                 sum[n+i+1]=ld_sum;

                 r_sum=sum[0];

                   for(i=0;i<(n*2+2);i++)

                                if(r_sum!=sum[i])

                                                 {

                                                                 f=1;

                                                                 break;

                                                 }

                   if(f==0)

                                    printf("\n\tits a Magice Square.");

                   else

                                    printf("\n\tits not a Magice Square.");

                 getch();

 }

Output:

Enter the Size of Square Matrix :  3
2     7       6

9     5       1

4     3       8

           It’s a Magic Square.