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:3: error: ‘::main’ must return ‘int’ user.cpp: In function ‘int main()’: user.cpp:6: error: ‘fstream’ was not declared in this scope user.cpp:6: error: expected ‘;’ before ‘f1’ user.cpp:7: error: ‘f2’ was not declared in this scope user.cpp:9: error: ‘f1’ was not declared in this scope