can some one please fix this error for me ....

Code:

#include <iostream>

#include <cstdlib>

using namespace std;

int ma(int n);

int main()

{

int n;

cout<<"Enter: ";

cin>>n;

int matrix[n][n];

//======================= initialise and insert values =========================

cout << "Enter the matrix by rows\n";

for(int row = 0; row < n; row++)

for(int col = 0; col < n; col++)

cin >> matrix[row][col];

//========================= sum of each row ====================================

cout<<ma(n);

system("pause");

return 0;

}

int ma(int n)

{

int row;

int col;

int matrix[row][col];

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

{

int sumRow = 0;

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

sumRow = sumRow + matrix[row][col];

cout<<"sum of row "<<row+1<<" = "<<sumRow<<endl;

}

}