telefoni.cpp: In function 'int main()':
telefoni.cpp:5:5: error: 'cin' was not declared in this scope
cin >> n >> d;
^~~
telefoni.cpp:5:5: note: suggested alternative:
In file included from telefoni.cpp:1:0:
/usr/include/c++/7/iostream:60:18: note: 'std::cin'
extern istream cin; /// Linked to standard input
^~~
telefoni.cpp:19:5: error: 'cout' was not declared in this scope
cout << c << endl;
^~~~
telefoni.cpp:19:5: note: suggested alternative:
In file included from telefoni.cpp:1:0:
/usr/include/c++/7/iostream:61:18: note: 'std::cout'
extern ostream cout; /// Linked to standard output
^~~~
telefoni.cpp:19:18: error: 'endl' was not declared in this scope
cout << c << endl;
^~~~
telefoni.cpp:19:18: note: suggested alternative:
In file included from /usr/include/c++/7/iostream:39:0,
from telefoni.cpp:1:
/usr/include/c++/7/ostream:590:5: note: 'std::endl'
endl(basic_ostream<_CharT, _Traits>& __os)
^~~~