/in/foo.cc: In function 'int main()':
/in/foo.cc:23:7: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'long long int')
cout>>maxf%p;
~~~~^~~~~~~~
/in/foo.cc:23:7: note: candidate: operator>>(int, long long int) <built-in>
/in/foo.cc:23:7: note: no known conversion for argument 1 from 'std::ostream {aka std::basic_ostream<char>}' to 'int'
In file included from /usr/include/c++/6/string:53:0,
from /usr/include/c++/6/bits/locale_classes.h:40,
from /usr/include/c++/6/bits/ios_base.h:41,
from /usr/include/c++/6/ios:42,
from /usr/include/c++/6/istream:38,
from /usr/include/c++/6/sstream:38,
from /usr/include/c++/6/complex:45,
from /usr/include/c++/6/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/bits/basic_string.tcc:1437:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
operator>>(basic_istream<_CharT, _Traits>& __in,
^~~~~~~~
/usr/include/c++/6/bits/basic_string.tcc:1437:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/c++/6/istream:934:0,
from /usr/include/c++/6/sstream:38,
from /usr/include/c++/6/complex:45,
from /usr/include/c++/6/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/bits/istream.tcc:955:5: note: candidate: template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)
operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
^~~~~~~~
/usr/include/c++/6/bits/istream.tcc:955:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/c++/6/istream:934:0,
from /usr/include/c++/6/sstream:38,
from /usr/include/c++/6/complex:45,
from /usr/include/c++/6/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/bits/istream.tcc:923:5: note: candidate: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)
operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
^~~~~~~~
/usr/include/c++/6/bits/istream.tcc:923:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/c++/6/sstream:38:0,
from /usr/include/c++/6/complex:45,
from /usr/include/c++/6/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/istream:756:5: note: candidate: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&)
operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
^~~~~~~~
/usr/include/c++/6/istream:756:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/c++/6/sstream:38:0,
from /usr/include/c++/6/complex:45,
from /usr/include/c++/6/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/istream:761:5: note: candidate: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&)
operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
^~~~~~~~
/usr/include/c++/6/istream:761:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/c++/6/sstream:38:0,
from /usr/include/c++/6/complex:45,
from /usr/include/c++/6/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/istream:803:5: note: candidate: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*)
operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s)
^~~~~~~~
/usr/include/c++/6/istream:803:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/c++/6/sstream:38:0,
from /usr/include/c++/6/complex:45,
from /usr/include/c++/6/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/istream:808:5: note: candidate: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*)
operator>>(basic_istream<char, _Traits>& __in, signed char* __s)
^~~~~~~~
/usr/include/c++/6/istream:808:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/c++/6/sstream:38:0,
from /usr/include/c++/6/complex:45,
from /usr/include/c++/6/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/istream:924:5: note: candidate: template<class _CharT, class _Traits, class _Tp> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&)
operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
^~~~~~~~
/usr/include/c++/6/istream:924:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/c++/6/ccomplex:39:0,
from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52,
from /in/foo.cc:1:
/usr/include/c++/6/complex:493:5: note: candidate: template<class _Tp, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::complex<_Tp>&)
operator>>(basic_istream<_CharT, _Traits>& __is, complex<_Tp>& __x)
^~~~~~~~
/usr/include/c++/6/complex:493:5: note: template argument deduction/substitution failed:
/in/foo.cc:23:14: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
cout>>maxf%p;
^
In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:66:0,
from /in/foo.cc:1:
/usr/include/c++/6/bitset:1462:5: note: candidate: template<class _CharT, class _Traits,