Eroare de compilare: user.cpp:1:20: error: fstream.h: No such file or directory user.cpp:19: warning: integer constant is too large for ‘long’ type user.cpp:6: error: ‘ifstream’ does not name a type user.cpp:7: error: ‘ofstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:11: error: ‘in’ was not declared in this scope user.cpp:19: error: expected ‘;’ before ‘LL’ user.cpp:25: error: ‘out’ was not declared in this scope