0_0_1519138_30332.cpp: In function `int main()': 0_0_1519138_30332.cpp:5: error: no match for 'operator==' in '(&std::cin)->std::basic_istream<_CharT, _Traits>::operator>> [with _CharT = char, _Traits = std::char_traits<char>](((int&)(&n))) == 1'