Eroare de compilare: main.cpp: In function 'int main()': main.cpp:48:28: error: no match for 'operator<' (operand types are 'std::basic_ostream<char>' and 'const char [2]') 48 | out << x << " " << y < "\n"; | ~~~~~~~~~~~~~~~~~~~~ ^ ~~~~ | | | | | const char [2] | std::basic_ostream<char> In file included from /usr/include/c++/10/utility:70, from /usr/include/c++/10/tuple:38, from main.cpp:1: /usr/include/c++/10/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/include/c++/10/bits/stl_pair.h:489:5: note: template argument deduction/substitution failed: main.cpp:48:30: note: 'std::basic_ostream<char>' is not derived from 'const std::pair<_T1, _T2>' 48 | out << x << " " << y < "\n"; | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/array:40, from /usr/include/c++/10/tuple:39, from main.cpp:1: /usr/include/c++/10/bits/stl_iterator.h:391:5: note: candidate: 'template<class _Iterator> bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)' 391 | operator<(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/10/bits/stl_iterator.h:391:5: note: template argument deduction/substitution failed: main.cpp:48:30: note: 'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>' 48 | out << x << " " << y < "\n"; | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/array:40, from /usr/include/c++/10/tuple:39, from main.cpp:1: /usr/include/c++/10/bits/stl_iterator.h:429:5: note: candidate: 'template<class _IteratorL, class _IteratorR> bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)' 429 | operator<(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/10/bits/stl_iterator.h:429:5: note: template argument deduction/substitution failed: main.cpp:48:30: note: 'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>' 48 | out << x << " " << y < "\n"; | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/array:40, from /usr/include/c++/10/tuple:39, from main.cpp:1: /usr/include/c++/10/bits/stl_iterator.h:1484:5: note: candidate: 'template<class _IteratorL, class _IteratorR> bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)' 1484 | operator<(const move_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/10/bits/stl_iterator.h:1484:5: note: template argument deduction/substitution failed: main.cpp:48:30: note: 'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>' 48 | out << x << " " << y < "\n"; | ^~~~ Non zero exit status: 1