Eroare de compilare: user.cpp:1:21: error: iostream.h: No such file or directory user.cpp:2:20: error: fstream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:7: error: ‘ifstream’ was not declared in this scope user.cpp:7: error: expected ‘;’ before ‘f’ user.cpp:8: error: ‘ofstream’ was not declared in this scope user.cpp:8: error: expected ‘;’ before ‘g’ user.cpp:9: error: ‘f’ was not declared in this scope user.cpp:15: warning: comparison between signed and unsigned integer expressions user.cpp:27: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:35: error: ‘cout’ was not declared in this scope user.cpp:39: error: ‘g’ was not declared in this scope user.cpp:6: warning: unused variable ‘i’ user.cpp:6: warning: unused variable ‘x’ user.cpp:6: warning: unused variable ‘sf’