Eroare de compilare in evaluator: user.cpp:3: error: '::main' must return 'int' user.cpp: In function 'int main()': user.cpp:5: error: 'ifstream' was not declared in this scope user.cpp:5: error: expected `;' before 'fin' user.cpp:6: error: 'ofstream' was not declared in this scope user.cpp:6: error: expected `;' before 'fout' user.cpp:7: error: 'fin' was not declared in this scope user.cpp:33: error: 'fout' was not declared in this scope