matrix structure in c++

Matrix.cpp

struct Matrix{
 // you cannot initialize a variable ....
 // ... (assign it values) inside the structure
 int matrix[3][3];
};

void printMatrix(struct Matrix *m){
   for (int i = 0;i<3;i++){
     for(int j = 0; j<3; j++){
      // you have to print out from m[][] 
      // m is of type Matrix
       cout << m[i][j] << " ";
     }
     cout<<endl;
   }
}

void main(String args[]){
   // initialize the matrix in main()
   struct Matrix X = { {3,2,1}, {1,2,1}, {1,1,1} };
   // then pass in the initialized matrix into printMatrix()
   printMatrix(X);
}