Eroare de compilare: main.cpp: In function 'void solve_smart(int, std::vector<std::vector<int> >)': main.cpp:152:8: error: no match for 'operator<<' (operand types are 'std::ostream' {aka 'std::basic_ostream<char>'} and '__gnu_cxx::__alloc_traits<std::allocator<std::deque<char> >, std::deque<char> >::value_type' {aka 'std::deque<char>'}) 152 | cout << sol[i] << "\n"; In file included from /usr/include/c++/10/istream:39, from /usr/include/c++/10/fstream:38, from main.cpp:3: /usr/include/c++/10/ostream:108:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ostream_type& (*)(std::basic_ostream<_CharT, _Traits>::__ostream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]' 108 | operator<<(__ostream_type& (*__pf)(__ostream_type&)) | ^~~~~~~~ /usr/include/c++/10/ostream:108:36: note: no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::deque<char> >, std::deque<char> >::value_type' {aka 'std::deque<char>'} to 'std::basic_ostream<char>::__ostream_type& (*)(std::basic_ostream<char>::__ostream_type&)' {aka 'std::basic_ostream<char>& (*)(std::basic_ostream<char>&)'} 108 | operator<<(__ostream_type& (*__pf)(__ostream_type&)) | ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/10/ostream:117:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ios_type& (*)(std::basic_ostream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::basic_ostream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]' 117 | operator<<(__ios_type& (*__pf)(__ios_type&)) | ^~~~~~~~ /usr/include/c++/10/ostream:117:32: note: no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::deque<char> >, std::deque<char> >::value_type' {aka 'std::deque<char>'} to 'std::basic_ostream<char>::__ios_type& (*)(std::basic_ostream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'} 117 | operator<<(__ios_type& (*__pf)(__ios_type&)) | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ /usr/include/c++/10/ostream:127:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]' 127 | operator<<(ios_base& (*__pf) (ios_base&)) | ^~~~~~~~ /usr/include/c++/10/ostream:127:30: note: no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::deque<char> >, std::deque<char> >::value_type' {aka 'std::deque<char>'} to 'std::ios_base& (*)(std::ios_base&)' 127 | operator<<(ios_base& (*__pf) (ios_base&)) | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ /usr/include/c++/10/ostream:166:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]' 166 | operator<<(long __n) | ^~~~~~~~ /usr/include/c++/10/ostream:166:23: note: no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::deque<char> >, std::deque<char> >::value_type' {aka 'std::deque<char>'} to 'long int' 166 | operator<<(long __n) | ~~~~~^~~ /usr/include/c++/10/ostream:170:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]' 170 | operator<<(unsigned long __n) | ^~~~~~~~ /usr/include/c++/10/ostream:170:32: note: no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::deque<char> >, std::deque<char> >::value_type' {aka 'std::deque<char>'} to 'long unsigned int' 170 | operator<<(unsigned long __n) | ~~~~~~~~~~~~~~^~~ /usr/include/c++/10/ostream:174:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]' 174 | operator<<(bool __n) | ^~~~~~~~ /usr/include/c++/10/ostream:174:23: note: no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::deque<char> >, std::deque<char> >::value_type' {aka 'std::deque<char>'} to 'bool' 174 | operator<<(bool __n) | ~~~~~^~~ In file included from /usr/include/c++/10/ostream:784, from /usr/include/c++/10/istream:39, from /usr/include/c++/10/fstream:38, from main.cpp:3: /usr/include/c++/10/bits/ostream.tcc:91:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short int) [with _CharT = char; _Traits = std::char_traits<char>]' 91 | basic_ostream<_CharT, _Traits>:: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/10/bits/ostream.tcc:92:22: note: no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<std::deque<char> >, std::deque<char> >::value_type' {aka 'std::deque<char>'} to 'short int' Non zero exit status: 1