View Compilation Error

0_0_1878339_153.cpp: In function `int main()':
0_0_1878339_153.cpp:9: error: no match for 'operator==' in 'a == (+std::operator<< [with _Traits = std::char_traits<char>](((std::basic_ostream<char, std::char_traits<char> >&)(&std::cout)), ((const char*)"YES")))->std::basic_ostream<_CharT, _Traits>::operator<< [with _CharT = char, _Traits = std::char_traits<char>](std::endl [with _CharT = char, _Traits = std::char_traits<char>])'
0_0_1878339_153.cpp:9: error: expected `)' before ';' token