/in/foo.cc: In function 'int main()':
/in/foo.cc:10:12: error: reference to 'max' is ambiguous
if(max<a+b)
^~~
/in/foo.cc:3:11: note: candidates are: int max
int i,a,b,max=0,day=0;
^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
from /usr/include/c++/6/ios:40,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:265:5: note: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^~~
/usr/include/c++/6/bits/stl_algobase.h:219:5: note: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
max(const _Tp& __a, const _Tp& __b)
^~~
/in/foo.cc:13:9: error: reference to 'max' is ambiguous
max=a+b;
^~~
/in/foo.cc:3:11: note: candidates are: int max
int i,a,b,max=0,day=0;
^~~
In file included from /usr/include/c++/6/bits/char_traits.h:39:0,
from /usr/include/c++/6/ios:40,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/stl_algobase.h:265:5: note: template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^~~
/usr/include/c++/6/bits/stl_algobase.h:219:5: note: template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
max(const _Tp& __a, const _Tp& __b)
^~~