Eroare de compilare: user.cpp: In function ‘long int f(long int)’: user.cpp:16:7: error: ‘cout’ was not declared in this scope cout<<"upsi"; ^ user.cpp: At global scope: user.cpp:59:1: error: ‘ifstream’ does not name a type ifstream fi("numar2.in"); ^ user.cpp:60:1: error: ‘ofstream’ does not name a type ofstream fout("numar2.out"); ^ user.cpp:63:11: error: ‘::main’ must return ‘int’ void main() ^ user.cpp: In function ‘int main()’: user.cpp:64:3: error: ‘cout’ was not declared in this scope { cout<<endl; ^ user.cpp:64:9: error: ‘endl’ was not declared in this scope { cout<<endl; ^ user.cpp:64:9: note: suggested alternative: In file included from /usr/include/c++/4.8/istream:39:0, from /usr/include/c++/4.8/fstream:38, from user.cpp:2: /usr/include/c++/4.8/ostream:564:5: note: ‘std::endl’ endl(basic_ostream<_CharT, _Traits>& __os) ^ user.cpp:65:3: error: ‘fi’ was not declared in this scope fi>>n>>m; ^ user.cpp:95:4: error: ‘fout’ was not declared in this scope { fout<<k<<endl; ^ user.cpp:96:4: error: return-statement with no value, in function returning ‘int’ [-fpermissive] return; ^