Write a program that reads a square matrix and checks whether it is symmetric.

A square matrix is called symmetric if for all values of i and j, a[i][j]=a[j][i].

#include <stdio.h>
#include <conio.h>
#define SIZE 50
void main()
{
	int A[SIZE][SIZE];    
 	int R;    	/* dimensions  */
 	int I, J;    	/* counters */
	int symmetric;

	do {
		printf("Number of rows and columns of the square matrix  (max.%d) : ", SIZE);
		scanf("%d", &R);
	} while (R <= 0 || R > SIZE);



 	for (I=0; I<R; I++)
    		for (J=0; J<R; J++)
        	{
         		printf("A[%d][%d] : ",I,J);
         		scanf("%d", &A[I][J]);
        	}


 	printf("\nMatrix :\n");
 	for (I=0; I<R; I++)
    	{
     		for (J=0; J<R; J++)
          		printf("%7d", A[I][J]);
     		printf("\n");
    	}


	symmetric=1;
 	for (I=0; I<R && symmetric==1; I++)
    		for (J=0; J<I && symmetric==1; J++)
        		if(A[I][J]!=A[J][I])
				symmetric=0;

	if(symmetric==1)
     		printf("Matrix is symmetric\n");
	else
		printf("Matrix is NOT symmetric\n");
	getch();
}