View Compilation Error

0_0_33167983_29462.cpp: In function 'void _Sol_()':
0_0_33167983_29462.cpp:77:9: error: cannot bind 'std::istream {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
  cin >> n; Ans=0;
         ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_33167983_29462.cpp:3:
GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:872:5: note: initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = __int128]'
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^