1_868_2544_912.cpp: In function 'int main()':
1_868_2544_912.cpp:57:20: error: cannot bind 'std::istream {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
cin >> s ;
^
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 1_868_2544_912.cpp:1:
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)
^
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