Eroare de compilare: main.cpp: In function 'int main()': main.cpp:54:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(int i=0;i<v.size();i++){ | ~^~~~~~~~~ main.cpp:55:16: error: no match for 'operator<' (operand types are 'std::basic_ostream<char>' and 'char') 55 | g<<v[i]<'\n'; | ^~~~~ | | | char main.cpp:55:16: note: candidate: 'operator<(int, int)' (built-in) 55 | g<<v[i]<'\n'; | ~~~~~~~^~~~~ main.cpp:55:16: note: no known conversion for argument 1 from 'std::basic_ostream<char>' to 'int' 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: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:55:17: note: 'std::basic_ostream<char>' is not derived from 'const std::pair<_T1, _T2>' 55 | g<<v[i]<'\n'; | ^~~~ 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: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:55:17: note: 'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>' 55 | g<<v[i]<'\n'; | ^~~~ 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: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:55:17: note: 'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>' Non zero exit status: 1