Eroare de compilare: user.cpp:3:21: error: iostream.h: No such file or directory user.cpp:4:21: error: fstream.h: No such file or directory user.cpp:5: error: ‘ifstream’ does not name a type user.cpp:6: error: ‘ofstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:13: error: ‘f’ was not declared in this scope user.cpp:21: error: ‘g’ was not declared in this scope user.cpp:21: error: ‘endl’ was not declared in this scope user.cpp:58: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:64: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:70: warning: suggest explicit braces to avoid ambiguous ‘else’