Eroare de compilare: user.cpp:8:1: error: ‘ifstream’ does not name a type ifstream f("euclid2.in"); ^~~~~~~~ user.cpp:9:1: error: ‘ofstream’ does not name a type ofstream g("euclid2.out"); ^~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:13:5: error: ‘f’ was not declared in this scope f>>t; ^ user.cpp:27:9: error: ‘g’ was not declared in this scope g<<b<<endl; ^ user.cpp:27:15: error: ‘endl’ was not declared in this scope g<<b<<endl; ^~~~ user.cpp:27:15: note: suggested alternative: In file included from /usr/include/c++/6/iostream:39:0, from user.cpp:1: /usr/include/c++/6/ostream:590:5: note: ‘std::endl’ endl(basic_ostream<_CharT, _Traits>& __os) ^~~~