Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:5:5: error: ‘ifstream’ was not declared in this scope ifstream in("euclid2.in"); ^ user.cpp:5:14: error: expected ‘;’ before ‘in’ ifstream in("euclid2.in"); ^ user.cpp:6:5: error: ‘ofstream’ was not declared in this scope ofstream out("euclid2.out"); ^ user.cpp:6:14: error: expected ‘;’ before ‘out’ ofstream out("euclid2.out"); ^ user.cpp:7:5: error: ‘in’ was not declared in this scope in>>t; ^ user.cpp:22:2: error: ‘out’ was not declared in this scope out<<b<<"\n"; ^