Eroare de compilare: main.cpp: In function 'int main()': main.cpp:26:33: error: 'a' was not declared in this scope 26 | um[sum]=T{ a[i], a[j], a[k]}; | ^ main.cpp:31:13: error: no match for 'operator!=' (operand types are 'std::unordered_map<int, T>::iterator' {aka 'std::__detail::_Hashtable_base<int, std::pair<const int, T>, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >::iterator'} and 'std::vector<int>::iterator') 31 | while(it!=v.end()){ | ~~^~~~~~~~~ | | | | | std::vector<int>::iterator | std::unordered_map<int, T>::iterator {aka std::__detail::_Hashtable_base<int, std::pair<const int, T>, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >::iterator} In file included from /usr/include/c++/10/iosfwd:40, from /usr/include/c++/10/ios:38, from /usr/include/c++/10/ostream:38, from /usr/include/c++/10/iostream:39, from main.cpp:1: /usr/include/c++/10/bits/postypes.h:227:5: note: candidate: 'template<class _StateT> bool std::operator!=(const std::fpos<_StateT>&, const std::fpos<_StateT>&)' 227 | operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) | ^~~~~~~~ /usr/include/c++/10/bits/postypes.h:227:5: note: template argument deduction/substitution failed: main.cpp:31:21: note: 'std::unordered_map<int, T>::iterator' {aka 'std::__detail::_Hashtable_base<int, std::pair<const int, T>, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >::iterator'} is not derived from 'const std::fpos<_StateT>' 31 | while(it!=v.end()){ | ^ In file included from /usr/include/c++/10/bits/stl_algobase.h:64, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/ios:40, from /usr/include/c++/10/ostream:38, from /usr/include/c++/10/iostream:39, from main.cpp:1: /usr/include/c++/10/bits/stl_pair.h:496:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator!=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)' 496 | operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) | ^~~~~~~~ /usr/include/c++/10/bits/stl_pair.h:496:5: note: template argument deduction/substitution failed: main.cpp:31:21: note: 'std::unordered_map<int, T>::iterator' {aka 'std::__detail::_Hashtable_base<int, std::pair<const int, T>, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >::iterator'} is not derived from 'const std::pair<_T1, _T2>' 31 | while(it!=v.end()){ | ^ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/bits/char_traits.h:39, from /usr/include/c++/10/ios:40, from /usr/include/c++/10/ostream:38, from /usr/include/c++/10/iostream:39, from main.cpp:1: /usr/include/c++/10/bits/stl_iterator.h:397:5: note: candidate: 'template<class _Iterator> bool std::operator!=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)' 397 | operator!=(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/10/bits/stl_iterator.h:397:5: note: template argument deduction/substitution failed: main.cpp:31:21: note: 'std::unordered_map<int, T>::iterator' {aka 'std::__detail::_Hashtable_base<int, std::pair<const int, T>, std::__detail::_Select1st, std::equal_to<int>, std::hash<int>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<false, false, true> >::iterator'} is not derived from 'const std::reverse_iterator<_Iterator>' 31 | while(it!=v.end()){ | ^ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/bits/char_traits.h:39, Non zero exit status: 1