Eroare de compilare: user.cpp:8:18: warning: character constant too long for its type user.cpp:9:18: warning: character constant too long for its type user.cpp: In function ‘int main()’: user.cpp:8: error: ‘istream’ was not declared in this scope user.cpp:8: error: expected ‘;’ before ‘f’ user.cpp:9: error: ‘fstream’ was not declared in this scope user.cpp:9: error: expected ‘;’ before ‘g’ user.cpp:11: error: ‘f’ was not declared in this scope user.cpp:14: error: ‘g’ was not declared in this scope