Eroare de compilare: user.cpp:3: error: 'ifstream' does not name a type user.cpp:4: error: 'ofstream' does not name a type user.cpp:6: warning: missing braces around initializer for 'int [11]' user.cpp: In function 'void back(int)': user.cpp:27: error: 'g' was not declared in this scope user.cpp:28: error: 'g' was not declared in this scope user.cpp:28: error: 'endl' was not declared in this scope user.cpp: In function 'int main()': user.cpp:38: error: 'f' was not declared in this scope user.cpp:47: error: 'g' was not declared in this scope