Eroare de compilare: user.cpp:6:1: error: ‘ifstream’ does not name a type ifstream f("2numere.in"); ^ user.cpp:7:1: error: ‘ofstream’ does not name a type ofstream fout("2numere.out"); ^ user.cpp: In function ‘int main()’: user.cpp:23:2: error: ‘f’ was not declared in this scope f>>n; ^ user.cpp:146:1: error: ‘fout’ was not declared in this scope fout<<a1sol<<endl; ^ user.cpp:146:14: error: ‘endl’ was not declared in this scope fout<<a1sol<<endl; ^ user.cpp:146:14: note: suggested alternative: In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from user.cpp:1: /usr/include/c++/4.8/ostream:564:5: note: ‘std::endl’ endl(basic_ostream<_CharT, _Traits>& __os) ^