Program:

#include<stdio.h>
#include<conio.h>
int main() {
int a[10][10], i, j, m, n, r=1;
printf("Enter the order of matrix:");
scanf("%d%d",&m,&n);
printf("Enter the elements of matrix\n");
for ( i = 0 ; i < m ; i++ )
for ( j = 0 ; j < n ; j++ )
scanf("%d",&a[i][j]);
for( i = 0 ; i < m ; i++ )   
{
for( j = 0 ; j < n ; j++ )  

if(a[i][j]!=a[j][i])  
{
            r=0;
}
    }
    }

if(r==1) 
{
        printf("Symmetric Matrix\n");
}
else 
{
        printf("Not a Symmetric Matrix.\n");
    }
} //main ends

Output: Enter the order of matrix: 3 3 Enter the elements of matrix:

1 2 4

2 4 6

4 6 5

Symmetric Matrix