Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:2:20: error: ‘cin’ was not declared in this scope int main(){int a,b;cin>>a>>b;cout<<a+b;return 0;} ^ user.cpp:2:20: note: suggested alternative: In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:60:18: note: ‘std::cin’ extern istream cin; /// Linked to standard input ^ user.cpp:2:30: error: ‘cout’ was not declared in this scope int main(){int a,b;cin>>a>>b;cout<<a+b;return 0;} ^ user.cpp:2:30: note: suggested alternative: In file included from user.cpp:1:0: /usr/include/c++/4.8/iostream:61:18: note: ‘std::cout’ extern ostream cout; /// Linked to standard output ^