symmetric matrix

`// Simple c++ code for check a matrix is
// symmetric or not.

include

using namespace std;

const int MAX = 100;

// Fills transpose of mat[N][N] in tr[N][N]
void transpose(int mat[][MAX], int tr[][MAX], int N)
{
for (int i = 0; i < N; i++)
for (int j = 0; j < N; j++)
tr[i][j] = mat[j][i];
}

// Returns true if mat[N][N] is symmetric, else false
bool isSymmetric(int mat[][MAX], int N)
{
int tr[N][MAX];
transpose(mat, tr, N);
for (int i = 0; i < N; i++)
for (int j = 0; j < N; j++)
if (mat[i][j] != tr[i][j])
return false;
return true;
}

// Driver code
int main()
{
int mat[][MAX] = { { 1, 3, 5 },
{ 3, 2, 4 },
{ 5, 4, 1 } };

if (isSymmetric(mat, 3))
    cout << "Yes";
else
    cout << "No";
return 0;

}
`