Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:7:17: error: variable ‘std::ifstream in’ has initializer but incomplete type ifstream in ("Sirul.in") ^ user.cpp:8:5: error: expected ‘,’ or ‘;’ before ‘ofstream’ ofstream out ("Sirul.out") ^ user.cpp:10:9: error: ‘n’ was not declared in this scope in>>n; ^ user.cpp:11:9: error: ‘i’ was not declared in this scope for(i=1;i<=n;i++) ^ user.cpp:13:9: error: ‘a’ was not declared in this scope a=1; ^ user.cpp:14:13: error: ‘j’ was not declared in this scope for(j=1;j<=i;j++) ^