View Compilation Error

0_0_5432568_6753.cpp: In function `int main()':
0_0_5432568_6753.cpp:26: error: no match for 'operator!=' in '(&std::cin)->std::basic_istream<_CharT, _Traits>::operator>> [with _CharT = char, _Traits = std::char_traits<char>](((int&)(&n))) != -0x000000001'