Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:6:17: error: variable ‘std::ifstream in’ has initializer but incomplete type ifstream in ("sirul.in"); ^ user.cpp:7:18: error: variable ‘std::ofstream out’ has initializer but incomplete type ofstream out ("sirul.out"); ^ user.cpp:11:5: error: expected ‘;’ before ‘for’ for(k=1;k<=n;k++) ^ user.cpp:11:14: warning: statement has no effect [-Wunused-value] for(k=1;k<=n;k++) ^ user.cpp:11:21: error: expected ‘;’ before ‘)’ token for(k=1;k<=n;k++) ^ user.cpp:17:1: error: expected ‘;’ before ‘}’ token } ^