Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:36: error: ‘ifstream’ was not declared in this scope user.cpp:36: error: expected ‘;’ before ‘fin’ user.cpp:37: error: ‘ofstream’ was not declared in this scope user.cpp:37: error: expected ‘;’ before ‘fout’ user.cpp:38: error: ‘fin’ was not declared in this scope user.cpp:73: error: ‘fout’ was not declared in this scope user.cpp:74: error: ‘fout’ was not declared in this scope user.cpp:75: error: ‘fout’ was not declared in this scope