Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:7: error: ‘ifstream’ was not declared in this scope user.cpp:8: error: ‘ofstream’ was not declared in this scope user.cpp:9: error: ‘fstream’ was not declared in this scope user.cpp:11: error: ‘fin’ was not declared in this scope user.cpp:11: error: ‘param’ was not declared in this scope user.cpp:16: error: ‘fout’ was not declared in this scope user.cpp:16: error: ‘f’ was not declared in this scope