Eroare de compilare: user.cpp: In function ‘void back(int)’: user.cpp:18: error: too few arguments to function ‘void afiseaza(int)’ user.cpp:33: error: at this point in file user.cpp:31: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int main()’: user.cpp:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result