제출 #27095

실행 실패 (제출 코드 컴파일 에러)

{"stderr": "Main.cpp: In function \u2018void solve(std::string)\u2019:\nMain.cpp:13:34: error: no match for \u2018operator!=\u2019 (operand types are \u2018std::string\u2019 {aka \u2018std::__cxx11::basic_string<char>\u2019} and \u2018char\u2019)\n   13 |             if(ret.size() && ret != '0') ret += ch;\n      |                              ~~~ ^~ ~~~\n      |                              |      |\n      |                              |      char\n      |                              std::string {aka std::__cxx11::basic_string<char>}\nIn file included from /usr/include/c++/11/regex:63,\n                 from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:110,\n                 from Main.cpp:1:\n/usr/include/c++/11/bits/regex.h:1230:5: note: candidate: \u2018template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)\u2019 (reversed)\n 1230 |     operator==(const sub_match<_Bi_iter>& __lhs,\n      |     ^~~~~~~~\n/usr/include/c++/11/bits/regex.h:1230:5: note:   template argument deduction/substitution failed:\nMain.cpp:13:37: note:   mismatched types \u2018const std::__cxx11::sub_match<_BiIter>\u2019 and \u2018char\u2019\n   13 |             if(ret.size() && ret != '0') ret += ch;\n      |                                     ^~~\nIn file included from /usr/include/c++/11/regex:63,\n                 from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:110,\n                 from Main.cpp:1:\n/usr/include/c++/11/bits/regex.h:1397:5: note: candidate: \u2018template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)\u2019 (reversed)\n 1397 |     operator==(const sub_match<_Bi_iter>& __lhs,\n      |     ^~~~~~~~\n/usr/include/c++/11/bits/regex.h:1397:5: note:   template argument deduction/substitution failed:\nMain.cpp:13:37: note:   mismatched types \u2018const std::__cxx11::sub_match<_BiIter>\u2019 and \u2018char\u2019\n   13 |             if(ret.size() && ret != '0') ret += ch;\n      |                                     ^~~\nIn file included from /usr/include/c++/11/regex:63,\n                 from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:110,\n                 from Main.cpp:1:\n/usr/include/c++/11/bits/regex.h:1569:5: note: candidate: \u2018template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)\u2019 (reversed)\n 1569 |     operator==(const sub_match<_Bi_iter>& __lhs,\n      |     ^~~~~~~~\n/usr/include/c++/11/bits/regex.h:1569:5: note:   template argument deduction/substitution failed:\nMain.cpp:13:37: note:   mismatched types \u2018const std::__cxx11::sub_match<_BiIter>\u2019 and \u2018char\u2019\n   13 |             if(ret.size() && ret != '0') ret += ch;\n      |                                     ^~~\nIn file included from /usr/include/c++/11/bits/stl_algobase.h:67,\n                 from /usr/include/c++/11/bits/specfun.h:45,\n                 from /usr/include/c++/11/cmath:1935,\n                 from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41,\n                 from Main.cpp:1:\n/usr/include/c++/11/bits/stl_iterator.h:495:5: note: candidate: \u2018template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorR>&) requires requires{{std::operator==::__x->base() == std::operator==::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}\u2019 (reversed)\n  495 |     operator==(const reverse_iterator<_IteratorL>& __x,\n      |     ^~~~~~~~\n/usr/include/c++/11/bits/stl_iterator.h:495:5: note:   template argument deduction/substitution failed:\nMain.cpp:13:37: note:   mismatched types \u2018const std::reverse_iterator<_IteratorL>\u2019 and \u2018char\u2019\n   13 |             if(ret.size() && ret != '0') ret += ch;\n      |                                     ^~~\nIn file included from /usr/include/c++/11/bits/stl_algobase.h:67,\n                 from /usr/include/c++/11/bits/specfun.h:45,\n                 from /usr/include/c++/11/cmath:1935,\n                 from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41,\n                 from Main.cpp:1:\n/usr/include/c++/11/bits/stl_iterator.h:1585:5: note: candidate: \u2018template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&) requires requires{{std::operator==::__x->base() == std::operator==::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}\u2019 (reversed)\n 1585 |     operator==(const move_iterator<_IteratorL>& __x,\n      |     ^~~~~~~~\n/usr/include/c++/11/bits/stl_iterator.h:1585:5: note:   template argument deduction/substitution f