Eroare de compilare: main.cpp: In function 'int main()': main.cpp:309:22: warning: variable 'P2' set but not used [-Wunused-but-set-variable] 309 | for(auto P2 : cnd) | ^~ main.cpp:308:18: warning: variable 'P1' set but not used [-Wunused-but-set-variable] 308 | for(auto P1 : cnd) | ^~ In file included from /usr/include/c++/12.2.1/map:60, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:81, from main.cpp:1: /usr/include/c++/12.2.1/bits/stl_tree.h: In instantiation of 'static const _Key& std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_S_key(_Const_Link_type) [with _Key = point; _Val = point; _KeyOfValue = std::_Identity<point>; _Compare = cmp; _Alloc = std::allocator<point>; _Const_Link_type = const std::_Rb_tree_node<point>*]': /usr/include/c++/12.2.1/bits/stl_tree.h:2117:47: required from 'std::pair<std::_Rb_tree_node_base*, std::_Rb_tree_node_base*> std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_M_get_insert_unique_pos(const key_type&) [with _Key = point; _Val = point; _KeyOfValue = std::_Identity<point>; _Compare = cmp; _Alloc = std::allocator<point>; key_type = point]' /usr/include/c++/12.2.1/bits/stl_tree.h:2170:4: required from 'std::pair<std::_Rb_tree_iterator<_Val>, bool> std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_M_insert_unique(_Arg&&) [with _Arg = const point&; _Key = point; _Val = point; _KeyOfValue = std::_Identity<point>; _Compare = cmp; _Alloc = std::allocator<point>]' /usr/include/c++/12.2.1/bits/stl_set.h:512:25: required from 'std::pair<typename std::_Rb_tree<_Key, _Key, std::_Identity<_Tp>, _Compare, typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key>::other>::const_iterator, bool> std::set<_Key, _Compare, _Alloc>::insert(const value_type&) [with _Key = point; _Compare = cmp; _Alloc = std::allocator<point>; typename std::_Rb_tree<_Key, _Key, std::_Identity<_Tp>, _Compare, typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key>::other>::const_iterator = std::_Rb_tree<point, point, std::_Identity<point>, cmp, std::allocator<point> >::const_iterator; typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key>::other = std::allocator<point>; typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key> = __gnu_cxx::__alloc_traits<std::allocator<point>, point>::rebind<point>; typename _Alloc::value_type = point; value_type = point]' main.cpp:152:48: required from here /usr/include/c++/12.2.1/bits/stl_tree.h:770:15: error: static assertion failed: comparison object must be invocable as const 770 | is_invocable_v<const _Compare&, const _Key&, const _Key&>, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/12.2.1/bits/stl_tree.h:770:15: note: 'std::is_invocable_v<const cmp&, const point&, const point&>' evaluates to false In file included from /usr/include/c++/12.2.1/string:48, from /usr/include/c++/12.2.1/bits/locale_classes.h:40, from /usr/include/c++/12.2.1/bits/ios_base.h:41, from /usr/include/c++/12.2.1/ios:42, from /usr/include/c++/12.2.1/istream:38, from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54: /usr/include/c++/12.2.1/bits/stl_function.h: In instantiation of 'constexpr bool std::less<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = point]': /usr/include/c++/12.2.1/bits/stl_tree.h:2117:35: required from 'std::pair<std::_Rb_tree_node_base*, std::_Rb_tree_node_base*> std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_M_get_insert_unique_pos(const key_type&) [with _Key = point; _Val = point; _KeyOfValue = std::_Identity<point>; _Compare = std::less<point>; _Alloc = std::allocator<point>; key_type = point]' /usr/include/c++/12.2.1/bits/stl_tree.h:2170:4: required from 'std::pair<std::_Rb_tree_iterator<_Val>, bool> std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_M_insert_unique(_Arg&&) [with _Arg = const point&; _Key = point; _Val = point; _KeyOfValue = std::_Identity<point>; _Compare = std::less<point>; _Alloc = std::allocator<point>]' /usr/include/c++/12.2.1/bits/stl_set.h:512:25: required from 'std::pair<typename std::_Rb_tree<_Key, _Key, std::_Identity<_Tp>, _Compare, typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key>::other>::const_iterator, bool> std::set<_Key, _Compare, _Alloc>::insert(const value_type&) [with _Key = point; _Compare = std::less<point>; _Alloc = std::allocator<point>; typename std::_Rb_tree<_Key, _Key, std::_Identity<_Tp>, _Compare, typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key>::other>::const_iterator = std::_Rb_tree<point, point, std::_Identity<point>, std::less<point>, std::allocator<point> >::const_iterator; typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key>::other = std::allocator<point>; typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key> = __gnu_cxx::__alloc_traits<std::allocator<point>, point>::rebind<point>; typename _Alloc::value_type = point; value_type = point]' main.cpp:228:31: required from here /usr/include/c++/12.2.1/bits/stl_function.h:408:20: error: no match for 'operator<' (operand types are 'const point' and 'const point') 408 | { return __x < __y; } | ~~~~^~~~~ In file included from /usr/include/c++/12.2.1/bits/stl_algobase.h:67, from /usr/include/c++/12.2.1/bits/specfun.h:45, from /usr/include/c++/12.2.1/cmath:1935, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:41: /usr/include/c++/12.2.1/bits/stl_iterator.h:579:5: note: candidate: 'template<class _IteratorL, class _IteratorR> requires three_way_comparable_with<_IteratorR, _IteratorL, std::partial_ordering> constexpr std::compare_three_way_result_t<_IteratorL, _IteratorR> std::operator<=>(const reverse_iterator<_IteratorL>&, const reverse_iterator<_IteratorR>&)' (reversed) 579 | operator<=>(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_iterator.h:579:5: note: template argument deduction/substitution failed: /usr/include/c++/12.2.1/bits/stl_function.h:408:20: note: 'const point' is not derived from 'const std::reverse_iterator<_IteratorL>' 408 | { return __x < __y; } | ~~~~^~~~~ /usr/include/c++/12.2.1/bits/stl_iterator.h:1668:5: note: candidate: 'template<class _IteratorL, class _IteratorR> requires three_way_comparable_with<_IteratorR, _IteratorL, std::partial_ordering> constexpr std::compare_three_way_result_t<_IteratorL, _IteratorR> std::operator<=>(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)' (reversed) 1668 | operator<=>(const move_iterator<_IteratorL>& __x, | ^~~~~~~~ Non zero exit status: 1