0_0_38933819_446.cpp: In function 'void gao()':
0_0_38933819_446.cpp:21:68: error: no match for 'operator-' (operand types are 'double' and 'PDD' {aka 'std::pair<double, double>'})
21 | ans=max(ans,fabs(a[i].second-a[i-1].second)/fabs(a[i].first-a[i-1]));
| ~~~~~~~~~~^~~~~~~
| | |
| double PDD {aka std::pair<double, double>}
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string:48,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/locale_classes.h:40,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/ios_base.h:41,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/ios:44,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/ostream:40,
from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/iostream:41,
from 0_0_38933819_446.cpp:1:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_iterator.h:625:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__y.base() - __x.base())) std::operator-(const reverse_iterator<_IteratorL>&, const reverse_iterator<_IteratorR>&)'
625 | operator-(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_iterator.h:625:5: note: template argument deduction/substitution failed:
0_0_38933819_446.cpp:21:74: note: mismatched types 'const std::reverse_iterator<_IteratorL>' and 'double'
21 | ans=max(ans,fabs(a[i].second-a[i-1].second)/fabs(a[i].first-a[i-1]));
| ^
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_iterator.h:1800:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__x.base() - __y.base())) std::operator-(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
1800 | operator-(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_iterator.h:1800:5: note: template argument deduction/substitution failed:
0_0_38933819_446.cpp:21:74: note: mismatched types 'const std::move_iterator<_IteratorL>' and 'double'
21 | ans=max(ans,fabs(a[i].second-a[i-1].second)/fabs(a[i].first-a[i-1]));
| ^
|
