citirea, modificarea si printarea unui tabel bidimensional in fisiere txt

int vectors2() { std::string mystring;

std::ifstream myfile; myfile.open(“input.txt”);

int matrix³³;

if (myfile.is_open()) { int a = 0, b = 0; while (myfile.good()) { myfile >> mystring; std::cout << mystring << std::endl; matrix[a][b] = stoi(mystring); if (b == 2) { a++; b = 0; } else { b++; } } } std::cout << “matrix” << std::endl; for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { std::cout << matrix[i][j] << “ “; } std::cout << “” << std::endl; } std::cout << “new matrix” << std::endl; for (int i = 2; i >= 0; i—) { for (int j = 0; j < 3; j++) { std::cout << matrix[i][j] << “ “; } std::cout << “” << std::endl; } std::ofstream myoutputfile; myoutputfile.open(“ouput.txt”); if (myoutputfile.is_open()) { for (int i = 2; i >= 0; i—) { for (int j = 0; j < 3; j++) { myoutputfile << matrix[i][j] << “ “; } myoutputfile << “” << std::endl; } myoutputfile.close(); }

return 2;
}