Eroare de compilare: user.cpp:2:3: error: ‘ifstream’ does not name a type ifstream fin("rucsac.in"); ^ user.cpp:3:5: error: ‘ofstream’ does not name a type ofstream fout("rucsac.out"); ^ user.cpp: In function ‘int main()’: user.cpp:11:5: error: ‘fin’ was not declared in this scope fin >> N >> G; ^ user.cpp:25:5: error: ‘fout’ was not declared in this scope fout << Pmax; ^