Eroare de compilare: user.cpp:1:21: error: ifstream.h: No such file or directory user.cpp:16:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:3: error: 'ifstream' was not declared in this scope user.cpp:3: error: expected `;' before 'fin' user.cpp:4: error: 'ofstream' was not declared in this scope user.cpp:4: error: expected `;' before 'fout' user.cpp:6: error: 'fin' was not declared in this scope user.cpp:11: error: 'r' was not declared in this scope user.cpp:15: error: 'fout' was not declared in this scope