0_0_30396321_29645.cpp: In function 'std::ostream& operator<<(std::ostream&, __int128)':
0_0_30396321_29645.cpp:19:10: error: redefinition of 'std::ostream& operator<<(std::ostream&, __int128)'
ostream& operator<<(std::ostream& os, __int128 T) {
^
0_0_30396321_29645.cpp:4:10: note: 'std::ostream& operator<<(std::ostream&, __int128)' previously defined here
ostream& operator<<(std::ostream& os, __int128 t) {
^
0_0_30396321_29645.cpp: In function 'int main()':
0_0_30396321_29645.cpp:25:16: error: cannot bind 'std::istream {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
while(cin>>a>>b){
^
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_30396321_29645.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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