Borderou de evaluare (job #693609)

Eroare de compilare: In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/string:48, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/locale_classes.h:40, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/ios_base.h:41, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/ios:42, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/fstream:38, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_function.h: In instantiation of 'constexpr bool std::less<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = canibal]': /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_tree.h:2071:35: 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 = canibal; _Val = canibal; _KeyOfValue = std::_Identity<canibal>; _Compare = std::less<canibal>; _Alloc = std::allocator<canibal>; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::key_type = canibal]' /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_tree.h:2124:4: 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 canibal&; _Key = canibal; _Val = canibal; _KeyOfValue = std::_Identity<canibal>; _Compare = std::less<canibal>; _Alloc = std::allocator<canibal>]' /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/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 = canibal; _Compare = std::less<canibal>; _Alloc = std::allocator<canibal>; typename std::_Rb_tree<_Key, _Key, std::_Identity<_Tp>, _Compare, typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key>::other>::const_iterator = std::_Rb_tree<canibal, canibal, std::_Identity<canibal>, std::less<canibal>, std::allocator<canibal> >::const_iterator; typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key>::other = std::allocator<canibal>; typename __gnu_cxx::__alloc_traits<_Alloc>::rebind<_Key> = __gnu_cxx::__alloc_traits<std::allocator<canibal>, canibal>::rebind<canibal>; typename _Alloc::value_type = canibal; std::set<_Key, _Compare, _Alloc>::value_type = canibal]' main.cpp:78:24: required from here /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_function.h:400:20: error: no match for 'operator<' (operand types are 'const canibal' and 'const canibal') 400 | { return __x < __y; } | ~~~~^~~~~ main.cpp:9:10: note: candidate: 'bool canibal::operator<(canibal)' (near match) 9 | bool operator < (const canibal obj) | ^~~~~~~~ main.cpp:9:10: note: passing 'const canibal*' as 'this' argument discards qualifiers In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_algobase.h:64, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/char_traits.h:39, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/ios:40, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/fstream:38, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_pair.h:489:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)' 489 | operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_pair.h:489:5: note: template argument deduction/substitution failed: In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/string:48, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/locale_classes.h:40, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/ios_base.h:41, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/ios:42, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/fstream:38, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_function.h:400:20: note: 'const canibal' is not derived from 'const std::pair<_T1, _T2>' 400 | { return __x < __y; } | ~~~~^~~~~ In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_algobase.h:67, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/char_traits.h:39, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/ios:40, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/istream:38, from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/fstream:38, from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_iterator.h:426:5: note: candidate: 'template<class _Iterator> bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)' 426 | operator<(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/bits/stl_iterator.h:426:5: note: template argument deduction/substitution failed: In file included from /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/string:48,