Eroare de compilare: user.cpp:2:1: error: ‘ifstream’ does not name a type ifstream f("euclid2.in"); ^ user.cpp:3:1: error: ‘ofstream’ does not name a type ofstream g("euclid2.out"); ^ user.cpp: In function ‘int main()’: user.cpp:7:1: error: ‘f’ was not declared in this scope f>>T; ^ user.cpp:11:1: error: ‘g’ was not declared in this scope g<<std::__gcd(a,b)<<"\n"; ^