Eroare de compilare: user.cpp:1:21: error: fstream.h: No such file or directory user.cpp:40: error: ‘::main’ must return ‘int’ user.cpp: In function ‘int main()’: user.cpp:43: error: ‘ifstream’ was not declared in this scope user.cpp:43: error: expected ‘;’ before ‘fin’ user.cpp:44: error: ‘fin’ was not declared in this scope user.cpp:52: error: ‘ofstream’ was not declared in this scope user.cpp:52: error: expected ‘;’ before ‘fout’ user.cpp:53: error: ‘fout’ was not declared in this scope