Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:16:1: error: ‘ifstream’ was not declared in this scope ifstream f("euclid2.in"); ^ user.cpp:16:10: error: expected ‘;’ before ‘f’ ifstream f("euclid2.in"); ^ user.cpp:17:1: error: ‘ofstream’ was not declared in this scope ofstream g("euclid2.out"); ^ user.cpp:17:10: error: expected ‘;’ before ‘g’ ofstream g("euclid2.out"); ^ user.cpp:18:1: error: ‘f’ was not declared in this scope f>>n; ^ user.cpp:22:1: error: ‘g’ was not declared in this scope g<<cmmdc(a,b); ^