Eroare de compilare: user.cpp:1:22: error: fstream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:6: error: ‘ifstream’ was not declared in this scope user.cpp:6: error: expected ‘;’ before ‘fin’ user.cpp:7: error: ‘fin’ was not declared in this scope user.cpp:17: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:18: error: ‘ofstream’ was not declared in this scope user.cpp:18: error: expected ‘;’ before ‘fout’ user.cpp:20: error: ‘fout’ was not declared in this scope