Eroare de compilare: main.cpp: In function 'int main()': main.cpp:68:25: error: no match for 'operator<' (operand types are 'std::basic_ostream<char>::__ostream_type' {aka 'std::basic_ostream<char>'} and 'char') 68 | fout << ans < '\n'; | ~~~~~~~~~~~ ^ ~~~~ | | | | | char | std::basic_ostream<char>::__ostream_type {aka std::basic_ostream<char>} main.cpp:68:25: note: candidate: 'operator<(int, int)' (built-in) 68 | fout << ans < '\n'; | ~~~~~~~~~~~~^~~~~~ main.cpp:68:25: note: no known conversion for argument 1 from 'std::basic_ostream<char>::__ostream_type' {aka 'std::basic_ostream<char>'} to 'int' In file included from /usr/include/c++/10/utility:70, from /usr/include/c++/10/algorithm:60, 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:68:27: note: 'std::basic_ostream<char>::__ostream_type' {aka 'std::basic_ostream<char>'} is not derived from 'const std::pair<_T1, _T2>' 68 | fout << ans < '\n'; | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/algorithm:61, 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:68:27: note: 'std::basic_ostream<char>::__ostream_type' {aka 'std::basic_ostream<char>'} is not derived from 'const std::reverse_iterator<_Iterator>' 68 | fout << ans < '\n'; | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/algorithm:61, 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:68:27: note: 'std::basic_ostream<char>::__ostream_type' {aka 'std::basic_ostream<char>'} is not derived from 'const std::reverse_iterator<_Iterator>' 68 | fout << ans < '\n'; | ^~~~ In file included from /usr/include/c++/10/bits/stl_algobase.h:67, from /usr/include/c++/10/algorithm:61, 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:68:27: note: 'std::basic_ostream<char>::__ostream_type' {aka 'std::basic_ostream<char>'} is not derived from 'const std::move_iterator<_IteratorL>' 68 | fout << ans < '\n'; Non zero exit status: 1