실행 실패 (제출 코드 컴파일 에러)
Main.cpp: In function ‘void solve(std::string)’: Main.cpp:13:34: error: no match for ‘operator!=’ (operand types are ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} and ‘char’) 13 | if(ret.size() && ret != '0') ret += ch; | ~~~ ^~ ~~~ | | | | | char | std::string {aka std::__cxx11::basic_string<char>} In file included from /usr/include/c++/11/regex:63, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:1: /usr/include/c++/11/bits/regex.h:1230:5: note: candidate: ‘template<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>&)’ (reversed) 1230 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1230:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::__cxx11::sub_match<_BiIter>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/regex:63, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:1: /usr/include/c++/11/bits/regex.h:1397:5: note: candidate: ‘template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)’ (reversed) 1397 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1397:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::__cxx11::sub_match<_BiIter>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/regex:63, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:1: /usr/include/c++/11/bits/regex.h:1569:5: note: candidate: ‘template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)’ (reversed) 1569 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1569:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::__cxx11::sub_match<_BiIter>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/bits/specfun.h:45, from /usr/include/c++/11/cmath:1935, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:495:5: note: candidate: ‘template<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>];}’ (reversed) 495 | operator==(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:495:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::reverse_iterator<_IteratorL>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/bits/specfun.h:45, from /usr/include/c++/11/cmath:1935, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:1585:5: note: candidate: ‘template<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>];}’ (reversed) 1585 | operator==(const move_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:1585:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::move_iterator<_IteratorL>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/string:41, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/allocator.h:218:5: note: candidate: ‘template<class _T1, class _T2> constexpr bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_T2>&)’ (reversed) 218 | operator==(const allocator<_T1>&, const allocator<_T2>&) | ^~~~~~~~ /usr/include/c++/11/bits/allocator.h:218:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::allocator<_CharT>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/basic_string.h:48, from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/string_view:541:5: note: candidate: ‘template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)’ (reversed) 541 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/11/string_view:541:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘std::basic_string_view<_CharT, _Traits>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/basic_string.h:6248:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)’ (reversed) 6248 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6248:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/complex:469:5: note: candidate: ‘template<class _Tp> constexpr bool std::operator==(const std::complex<_Tp>&, const _Tp&)’ (reversed) 469 | operator==(const complex<_Tp>& __x, const _Tp& __y) | ^~~~~~~~ /usr/include/c++/11/complex:469:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::complex<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/functional:54, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:65, from Main.cpp:1: /usr/include/c++/11/tuple:1524:5: note: candidate: ‘template<class ... _TElements, class ... _UElements> constexpr bool std::operator==(const std::tuple<_Tps ...>&, const std::tuple<_UTypes ...>&)’ (reversed) 1524 | operator==(const tuple<_TElements...>& __t, | ^~~~~~~~ /usr/include/c++/11/tuple:1524:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::tuple<_Tps ...>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/functional:59, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:65, from Main.cpp:1: /usr/include/c++/11/bits/std_function.h:718:5: note: candidate: ‘template<class _Res, class ... _Args> bool std::operator==(const std::function<_Res(_ArgTypes ...)>&, std::nullptr_t)’ (reversed) 718 | operator==(const function<_Res(_Args...)>& __f, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/std_function.h:718:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::function<_Res(_ArgTypes ...)>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/locale_conv.h:41, from /usr/include/c++/11/locale:43, from /usr/include/c++/11/iomanip:43, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:72, from Main.cpp:1: /usr/include/c++/11/bits/unique_ptr.h:753:5: note: candidate: ‘template<class _Tp, class _Dp, class _Up, class _Ep> bool std::operator==(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)’ (reversed) 753 | operator==(const unique_ptr<_Tp, _Dp>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unique_ptr.h:753:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::unique_ptr<_Tp, _Dp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/locale_conv.h:41, from /usr/include/c++/11/locale:43, from /usr/include/c++/11/iomanip:43, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:72, from Main.cpp:1: /usr/include/c++/11/bits/unique_ptr.h:760:5: note: candidate: ‘template<class _Tp, class _Dp> bool std::operator==(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)’ (reversed) 760 | operator==(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/unique_ptr.h:760:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::unique_ptr<_Tp, _Dp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/shared_ptr.h:53, from /usr/include/c++/11/memory:77, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:82, from Main.cpp:1: /usr/include/c++/11/bits/shared_ptr_base.h:1410:5: note: candidate: ‘template<class _Tp1, class _Tp2, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(const std::__shared_ptr<_Tp1, _Lp>&, const std::__shared_ptr<_Tp2, _Lp>&)’ (reversed) 1410 | operator==(const __shared_ptr<_Tp1, _Lp>& __a, | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr_base.h:1410:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::__shared_ptr<_Tp1, _Lp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/shared_ptr.h:53, from /usr/include/c++/11/memory:77, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:82, from Main.cpp:1: /usr/include/c++/11/bits/shared_ptr_base.h:1416:5: note: candidate: ‘template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)’ (reversed) 1416 | operator==(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr_base.h:1416:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::__shared_ptr<_Tp, _Lp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/memory:77, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:82, from Main.cpp:1: /usr/include/c++/11/bits/shared_ptr.h:437:5: note: candidate: ‘template<class _Tp, class _Up> bool std::operator==(const std::shared_ptr<_Tp>&, const std::shared_ptr<_Tp>&)’ (reversed) 437 | operator==(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr.h:437:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::shared_ptr<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/memory:77, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:82, from Main.cpp:1: /usr/include/c++/11/bits/shared_ptr.h:443:5: note: candidate: ‘template<class _Tp> bool std::operator==(const std::shared_ptr<_Tp>&, std::nullptr_t)’ (reversed) 443 | operator==(const shared_ptr<_Tp>& __a, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr.h:443:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::shared_ptr<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: ‘template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)’ (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: ‘template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)’ (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: ‘template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’ (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: ‘template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)’ (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: ‘template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’ (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/valarray:1198:1: note: candidate: ‘template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)’ (reversed) 1198 | _DEFINE_BINARY_OPERATOR(==, __equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1198:1: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::valarray<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/valarray:1198:1: note: candidate: ‘template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)’ (reversed) 1198 | _DEFINE_BINARY_OPERATOR(==, __equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1198:1: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::valarray<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:111, from Main.cpp:1: /usr/include/c++/11/scoped_allocator:499:5: note: candidate: ‘template<class _OutA1, class _OutA2, class ... _InA> bool std::operator==(const std::scoped_allocator_adaptor<_OutA1, _InA ...>&, const std::scoped_allocator_adaptor<_InnerHead, _InnerTail ...>&)’ (reversed) 499 | operator==(const scoped_allocator_adaptor<_OutA1, _InA...>& __a, | ^~~~~~~~ /usr/include/c++/11/scoped_allocator:499:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::scoped_allocator_adaptor<_OutA1, _InA ...>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:1: /usr/include/c++/11/optional:1045:5: note: candidate: ‘template<class _Tp, class _Up> constexpr std::__optional_eq_t<_Tp, _Up> std::operator==(const std::optional<_Tp>&, const std::optional<_Up>&)’ (reversed) 1045 | operator==(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1045:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::optional<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:1: /usr/include/c++/11/optional:1105:5: note: candidate: ‘template<class _Tp> constexpr bool std::operator==(const std::optional<_Tp>&, std::nullopt_t)’ (reversed) 1105 | operator==(const optional<_Tp>& __lhs, nullopt_t) noexcept | ^~~~~~~~ /usr/include/c++/11/optional:1105:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::optional<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:1: /usr/include/c++/11/optional:1173:5: note: candidate: ‘template<class _Tp, class _Up> constexpr std::__optional_eq_t<_Tp, _Up> std::operator==(const std::optional<_Tp>&, const _Up&)’ (reversed) 1173 | operator==(const optional<_Tp>& __lhs, const _Up& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1173:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::optional<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:1: /usr/include/c++/11/optional:1179:5: note: candidate: ‘template<class _Tp, class _Up> constexpr std::__optional_eq_t<_Up, _Tp> std::operator==(const _Up&, const std::optional<_Tp>&)’ (reversed) 1179 | operator==(const _Up& __lhs, const optional<_Tp>& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1179:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::optional<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/bits/specfun.h:45, from /usr/include/c++/11/cmath:1935, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:1122:5: note: candidate: ‘template<class _IteratorL, class _IteratorR, class _Container> requires requires(_IteratorL __lhs, _IteratorR __rhs) {{__lhs == __rhs} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];} constexpr bool __gnu_cxx::operator==(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)’ (reversed) 1122 | operator==(const __normal_iterator<_IteratorL, _Container>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:1122:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const __gnu_cxx::__normal_iterator<_IteratorL, _Container>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/c++allocator.h:33, from /usr/include/c++/11/bits/allocator.h:46, from /usr/include/c++/11/string:41, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/ext/new_allocator.h:183:9: note: candidate: ‘template<class _Up> constexpr bool __gnu_cxx::operator==(const __gnu_cxx::new_allocator<char>&, const __gnu_cxx::new_allocator<_Tp>&)’ (reversed) 183 | operator==(const new_allocator&, const new_allocator<_Up>&) | ^~~~~~~~ /usr/include/c++/11/ext/new_allocator.h:183:9: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const __gnu_cxx::new_allocator<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/ios_base.h:46, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/system_error:368:3: note: candidate: ‘bool std::operator==(const std::error_code&, const std::error_condition&)’ (reversed) 368 | operator==(const error_code& __lhs, const error_condition& __rhs) noexcept | ^~~~~~~~ /usr/include/c++/11/system_error:368:32: note: no known conversion for argument 1 from ‘char’ to ‘const std::error_code&’ 368 | operator==(const error_code& __lhs, const error_condition& __rhs) noexcept | ~~~~~~~~~~~~~~~~~~^~~~~ In file included from /usr/include/c++/11/regex:63, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:1: /usr/include/c++/11/bits/regex.h:1059:5: note: candidate: ‘template<class _BiIter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)’ (rewritten) 1059 | operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs) | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1059:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::__cxx11::sub_match<_BiIter>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/regex:63, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:1: /usr/include/c++/11/bits/regex.h:2125:5: note: candidate: ‘template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator==(const std::__cxx11::match_results<_BiIter, _Alloc>&, const std::__cxx11::match_results<_BiIter, _Alloc>&)’ (rewritten) 2125 | operator==(const match_results<_Bi_iter, _Alloc>& __m1, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:2125:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::__cxx11::match_results<_BiIter, _Alloc>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/stl_algobase.h:64, from /usr/include/c++/11/bits/specfun.h:45, from /usr/include/c++/11/cmath:1935, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41, from Main.cpp:1: /usr/include/c++/11/bits/stl_pair.h:466:5: note: candidate: ‘template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)’ (rewritten) 466 | operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_pair.h:466:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::pair<_T1, _T2>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/bits/specfun.h:45, from /usr/include/c++/11/cmath:1935, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:547:5: note: candidate: ‘template<class _Iterator> constexpr bool std::operator==(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorL>&) requires requires{{std::operator==::__x->base() == std::operator==::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}’ (rewritten) 547 | operator==(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:547:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::reverse_iterator<_IteratorL>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/bits/specfun.h:45, from /usr/include/c++/11/cmath:1935, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:1648:5: note: candidate: ‘template<class _Iterator> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)’ (rewritten) 1648 | operator==(const move_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:1648:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::move_iterator<_IteratorL>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/iosfwd:40, from /usr/include/c++/11/ios:38, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/postypes.h:222:5: note: candidate: ‘template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)’ (rewritten) 222 | operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) | ^~~~~~~~ /usr/include/c++/11/bits/postypes.h:222:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::fpos<_StateT>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/basic_string.h:48, from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/string_view:535:5: note: candidate: ‘template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)’ (rewritten) 535 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/11/string_view:535:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::__cxx11::basic_string<char>’ is not derived from ‘std::basic_string_view<_CharT, _Traits>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/basic_string.h:6226:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)’ (rewritten) 6226 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6226:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/basic_string.h:6234:5: note: candidate: ‘template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::__cxx11::basic_string<_CharT>&, const std::__cxx11::basic_string<_CharT>&)’ (rewritten) 6234 | operator==(const basic_string<_CharT>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6234:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::__cxx11::basic_string<_CharT>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/locale_facets.h:48, from /usr/include/c++/11/bits/basic_ios.h:37, from /usr/include/c++/11/ios:44, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/streambuf_iterator.h:226:5: note: candidate: ‘template<class _CharT, class _Traits> bool std::operator==(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)’ (rewritten) 226 | operator==(const istreambuf_iterator<_CharT, _Traits>& __a, | ^~~~~~~~ /usr/include/c++/11/bits/streambuf_iterator.h:226:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::istreambuf_iterator<_CharT, _Traits>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/complex:464:5: note: candidate: ‘template<class _Tp> constexpr bool std::operator==(const std::complex<_Tp>&, const std::complex<_Tp>&)’ (rewritten) 464 | operator==(const complex<_Tp>& __x, const complex<_Tp>& __y) | ^~~~~~~~ /usr/include/c++/11/complex:464:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::complex<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/tuple:39, from /usr/include/c++/11/functional:54, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:65, from Main.cpp:1: /usr/include/c++/11/array:276:5: note: candidate: ‘template<class _Tp, long unsigned int _Nm> constexpr bool std::operator==(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)’ (rewritten) 276 | operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) | ^~~~~~~~ /usr/include/c++/11/array:276:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::array<_Tp, _Nm>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/unordered_map:47, from /usr/include/c++/11/functional:61, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:65, from Main.cpp:1: /usr/include/c++/11/bits/unordered_map.h:2134:5: note: candidate: ‘template<class _Key1, class _Tp1, class _Hash1, class _Pred1, class _Alloc1> bool std::operator==(const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&)’ (rewritten) 2134 | operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unordered_map.h:2134:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/unordered_map:47, from /usr/include/c++/11/functional:61, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:65, from Main.cpp:1: /usr/include/c++/11/bits/unordered_map.h:2148:5: note: candidate: ‘template<class _Key1, class _Tp1, class _Hash1, class _Pred1, class _Alloc1> bool std::operator==(const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&)’ (rewritten) 2148 | operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unordered_map.h:2148:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/vector:67, from /usr/include/c++/11/functional:62, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:65, from Main.cpp:1: /usr/include/c++/11/bits/stl_vector.h:1892:5: note: candidate: ‘template<class _Tp, class _Alloc> bool std::operator==(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)’ (rewritten) 1892 | operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_vector.h:1892:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::vector<_Tp, _Alloc>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/deque:67, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:68, from Main.cpp:1: /usr/include/c++/11/bits/stl_deque.h:2247:5: note: candidate: ‘template<class _Tp, class _Alloc> bool std::operator==(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)’ (rewritten) 2247 | operator==(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_deque.h:2247:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::deque<_Tp, _Alloc>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/list:63, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:79, from Main.cpp:1: /usr/include/c++/11/bits/stl_list.h:2030:5: note: candidate: ‘template<class _Tp, class _Alloc> bool std::operator==(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)’ (rewritten) 2030 | operator==(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_list.h:2030:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::__cxx11::list<_Tp, _Alloc>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/map:61, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:81, from Main.cpp:1: /usr/include/c++/11/bits/stl_map.h:1463:5: note: candidate: ‘template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::map<_Key, _Tp, _Compare, _Allocator>&, const std::map<_Key, _Tp, _Compare, _Allocator>&)’ (rewritten) 1463 | operator==(const map<_Key, _Tp, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_map.h:1463:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::map<_Key, _Tp, _Compare, _Allocator>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/map:62, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:81, from Main.cpp:1: /usr/include/c++/11/bits/stl_multimap.h:1128:5: note: candidate: ‘template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::multimap<_Key, _Tp, _Compare, _Allocator>&, const std::multimap<_Key, _Tp, _Compare, _Allocator>&)’ (rewritten) 1128 | operator==(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_multimap.h:1128:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::multimap<_Key, _Tp, _Compare, _Allocator>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/queue:64, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:86, from Main.cpp:1: /usr/include/c++/11/bits/stl_queue.h:344:5: note: candidate: ‘template<class _Tp, class _Seq> bool std::operator==(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)’ (rewritten) 344 | operator==(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_queue.h:344:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::queue<_Tp, _Seq>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/set:61, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:87, from Main.cpp:1: /usr/include/c++/11/bits/stl_set.h:985:5: note: candidate: ‘template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::set<_Key, _Compare, _Allocator>&, const std::set<_Key, _Compare, _Allocator>&)’ (rewritten) 985 | operator==(const set<_Key, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_set.h:985:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::set<_Key, _Compare, _Allocator>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/set:62, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:87, from Main.cpp:1: /usr/include/c++/11/bits/stl_multiset.h:971:5: note: candidate: ‘template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::multiset<_Key, _Compare, _Allocator>&, const std::multiset<_Key, _Compare, _Allocator>&)’ (rewritten) 971 | operator==(const multiset<_Key, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_multiset.h:971:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::multiset<_Key, _Compare, _Allocator>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/stack:61, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:89, from Main.cpp:1: /usr/include/c++/11/bits/stl_stack.h:319:5: note: candidate: ‘template<class _Tp, class _Seq> bool std::operator==(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)’ (rewritten) 319 | operator==(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_stack.h:319:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::stack<_Tp, _Seq>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/valarray:1198:1: note: candidate: ‘template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const std::valarray<_Tp>&, const std::valarray<_Tp>&)’ (rewritten) 1198 | _DEFINE_BINARY_OPERATOR(==, __equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1198:1: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::valarray<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/forward_list:40, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:104, from Main.cpp:1: /usr/include/c++/11/bits/forward_list.tcc:393:5: note: candidate: ‘template<class _Tp, class _Alloc> bool std::operator==(const std::forward_list<_Tp, _Alloc>&, const std::forward_list<_Tp, _Alloc>&)’ (rewritten) 393 | operator==(const forward_list<_Tp, _Alloc>& __lx, | ^~~~~~~~ /usr/include/c++/11/bits/forward_list.tcc:393:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::forward_list<_Tp, _Alloc>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:51, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.tcc:1899:5: note: candidate: ‘template<class _RealType1> bool std::operator==(const std::normal_distribution<_RealType>&, const std::normal_distribution<_RealType>&)’ (rewritten) 1899 | operator==(const std::normal_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.tcc:1899:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::normal_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/unordered_set:47, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:118, from Main.cpp:1: /usr/include/c++/11/bits/unordered_set.h:1804:5: note: candidate: ‘template<class _Value1, class _Hash1, class _Pred1, class _Alloc1> bool std::operator==(const std::unordered_set<_Value1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_set<_Value1, _Hash1, _Pred1, _Alloc1>&)’ (rewritten) 1804 | operator==(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unordered_set.h:1804:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::unordered_set<_Value1, _Hash1, _Pred1, _Alloc1>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/unordered_set:47, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:118, from Main.cpp:1: /usr/include/c++/11/bits/unordered_set.h:1818:5: note: candidate: ‘template<class _Value1, class _Hash1, class _Pred1, class _Alloc1> bool std::operator==(const std::unordered_multiset<_Value1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_multiset<_Value1, _Hash1, _Pred1, _Alloc1>&)’ (rewritten) 1818 | operator==(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unordered_set.h:1818:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::unordered_multiset<_Value1, _Hash1, _Pred1, _Alloc1>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:133, from Main.cpp:1: /usr/include/c++/11/variant:1232:3: note: candidate: ‘template<class ... _Types> constexpr bool std::operator==(const std::variant<_Types ...>&, const std::variant<_Types ...>&)’ (rewritten) 1232 | _VARIANT_RELATION_FUNCTION_TEMPLATE(==, equal) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/variant:1232:3: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::variant<_Types ...>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/bits/specfun.h:45, from /usr/include/c++/11/cmath:1935, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:1136:5: note: candidate: ‘template<class _Iterator, class _Container> constexpr bool __gnu_cxx::operator==(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&) requires requires{{__gnu_cxx::operator==::__lhs->base() == __gnu_cxx::operator==::__rhs->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}’ (rewritten) 1136 | operator==(const __normal_iterator<_Iterator, _Container>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:1136:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const __gnu_cxx::__normal_iterator<_Iterator, _Container>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:142, from Main.cpp:1: /usr/include/c++/11/coroutine:137:3: note: candidate: ‘constexpr bool std::__n4861::operator==(std::__n4861::coroutine_handle<void>, std::__n4861::coroutine_handle<void>)’ (rewritten) 137 | operator==(coroutine_handle<> __a, coroutine_handle<> __b) noexcept | ^~~~~~~~ /usr/include/c++/11/coroutine:137:33: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} to ‘std::__n4861::coroutine_handle<void>’ 137 | operator==(coroutine_handle<> __a, coroutine_handle<> __b) noexcept | ~~~~~~~~~~~~~~~~~~~^~~ In file included from /usr/include/c++/11/bits/ios_base.h:46, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/system_error:362:3: note: candidate: ‘bool std::operator==(const std::error_code&, const std::error_code&)’ (rewritten) 362 | operator==(const error_code& __lhs, const error_code& __rhs) noexcept | ^~~~~~~~ /usr/include/c++/11/system_error:362:32: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} to ‘const std::error_code&’ 362 | operator==(const error_code& __lhs, const error_code& __rhs) noexcept | ~~~~~~~~~~~~~~~~~~^~~~~ /usr/include/c++/11/system_error:376:3: note: candidate: ‘bool std::operator==(const std::error_condition&, const std::error_condition&)’ (rewritten) 376 | operator==(const error_condition& __lhs, | ^~~~~~~~ /usr/include/c++/11/system_error:376:37: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} to ‘const std::error_condition&’ 376 | operator==(const error_condition& __lhs, | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~ In file included from /usr/include/c++/11/stop_token:35, from /usr/include/c++/11/condition_variable:47, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:103, from Main.cpp:1: /usr/include/c++/11/bits/std_thread.h:287:3: note: candidate: ‘bool std::operator==(std::thread::id, std::thread::id)’ (rewritten) 287 | operator==(thread::id __x, thread::id __y) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/std_thread.h:287:25: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} to ‘std::thread::id’ 287 | operator==(thread::id __x, thread::id __y) noexcept | ~~~~~~~~~~~^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:133, from Main.cpp:1: /usr/include/c++/11/variant:1239:18: note: candidate: ‘constexpr bool std::operator==(std::monostate, std::monostate)’ (rewritten) 1239 | constexpr bool operator==(monostate, monostate) noexcept { return true; } | ^~~~~~~~ /usr/include/c++/11/variant:1239:29: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} to ‘std::monostate’ 1239 | constexpr bool operator==(monostate, monostate) noexcept { return true; } | ^~~~~~~~~ In file included from /usr/include/c++/11/string:41, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/ios:42, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/allocator.h:204:7: note: candidate: ‘constexpr bool std::operator==(const std::allocator<char>&, const std::allocator<char>&)’ (rewritten) 204 | operator==(const allocator&, const allocator&) _GLIBCXX_NOTHROW | ^~~~~~~~ /usr/include/c++/11/bits/allocator.h:204:18: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} to ‘const std::allocator<char>&’ 204 | operator==(const allocator&, const allocator&) _GLIBCXX_NOTHROW | ^~~~~~~~~~~~~~~~ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/bits/specfun.h:45, from /usr/include/c++/11/cmath:1935, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:41, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:502:5: note: candidate: ‘template<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>];}’ 502 | operator!=(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:502:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::reverse_iterator<_IteratorL>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/iosfwd:40, from /usr/include/c++/11/ios:38, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/postypes.h:227:5: note: candidate: ‘template<class _StateT> bool std::operator!=(const std::fpos<_StateT>&, const std::fpos<_StateT>&)’ 227 | operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) | ^~~~~~~~ /usr/include/c++/11/bits/postypes.h:227:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::fpos<_StateT>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/bits/locale_facets.h:48, from /usr/include/c++/11/bits/basic_ios.h:37, from /usr/include/c++/11/ios:44, from /usr/include/c++/11/istream:38, from /usr/include/c++/11/sstream:38, from /usr/include/c++/11/complex:45, from /usr/include/c++/11/ccomplex:39, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:1: /usr/include/c++/11/bits/streambuf_iterator.h:232:5: note: candidate: ‘template<class _CharT, class _Traits> bool std::operator!=(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)’ 232 | operator!=(const istreambuf_iterator<_CharT, _Traits>& __a, | ^~~~~~~~ /usr/include/c++/11/bits/streambuf_iterator.h:232:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::istreambuf_iterator<_CharT, _Traits>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/queue:64, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:86, from Main.cpp:1: /usr/include/c++/11/bits/stl_queue.h:368:5: note: candidate: ‘template<class _Tp, class _Seq> bool std::operator!=(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)’ 368 | operator!=(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_queue.h:368:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::queue<_Tp, _Seq>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/stack:61, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:89, from Main.cpp:1: /usr/include/c++/11/bits/stl_stack.h:343:5: note: candidate: ‘template<class _Tp, class _Seq> bool std::operator!=(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)’ 343 | operator!=(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_stack.h:343:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::stack<_Tp, _Seq>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: ‘template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__not_equal_to, typename _Dom1::value_type>::result_type> std::operator!=(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)’ 418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: ‘template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__not_equal_to, typename _Dom1::value_type>::result_type> std::operator!=(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)’ 418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: ‘template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__not_equal_to, typename _Dom1::value_type>::result_type> std::operator!=(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’ 418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: ‘template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__not_equal_to, typename _Dom1::value_type>::result_type> std::operator!=(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)’ 418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/valarray:603, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/bits/valarray_after.h:418:5: note: candidate: ‘template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__not_equal_to, typename _Dom1::value_type>::result_type> std::operator!=(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’ 418 | _DEFINE_EXPR_BINARY_OPERATOR(!=, struct std::__not_equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:418:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/valarray:1199:1: note: candidate: ‘template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__not_equal_to, _Tp>::result_type> std::operator!=(const std::valarray<_Tp>&, const std::valarray<_Tp>&)’ 1199 | _DEFINE_BINARY_OPERATOR(!=, __not_equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1199:1: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::valarray<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/valarray:1199:1: note: candidate: ‘template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__not_equal_to, _Tp>::result_type> std::operator!=(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)’ 1199 | _DEFINE_BINARY_OPERATOR(!=, __not_equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1199:1: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::valarray<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:1: /usr/include/c++/11/valarray:1199:1: note: candidate: ‘template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__not_equal_to, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__not_equal_to, _Tp>::result_type> std::operator!=(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)’ 1199 | _DEFINE_BINARY_OPERATOR(!=, __not_equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1199:1: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::valarray<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:432:5: note: candidate: ‘template<class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m> bool std::operator!=(const std::linear_congruential_engine<_UIntType, __a, __c, __m>&, const std::linear_congruential_engine<_UIntType, __a, __c, __m>&)’ 432 | operator!=(const std::linear_congruential_engine<_UIntType, __a, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:432:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::linear_congruential_engine<_UIntType, __a, __c, __m>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:669:5: note: candidate: ‘template<class _UIntType, long unsigned int __w, long unsigned int __n, long unsigned int __m, long unsigned int __r, _UIntType __a, long unsigned int __u, _UIntType __d, long unsigned int __s, _UIntType __b, long unsigned int __t, _UIntType __c, long unsigned int __l, _UIntType __f> bool std::operator!=(const std::mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>&, const std::mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>&)’ 669 | operator!=(const std::mersenne_twister_engine<_UIntType, __w, __n, __m, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:669:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:870:5: note: candidate: ‘template<class _UIntType, long unsigned int __w, long unsigned int __s, long unsigned int __r> bool std::operator!=(const std::subtract_with_carry_engine<_UIntType, __w, __s, __r>&, const std::subtract_with_carry_engine<_UIntType, __w, __s, __r>&)’ 870 | operator!=(const std::subtract_with_carry_engine<_UIntType, __w, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:870:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::subtract_with_carry_engine<_UIntType, __w, __s, __r>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:1093:5: note: candidate: ‘template<class _RandomNumberEngine, long unsigned int __p, long unsigned int __r> bool std::operator!=(const std::discard_block_engine<_RandomNumberEngine, __p, __r>&, const std::discard_block_engine<_RandomNumberEngine, __p, __r>&)’ 1093 | operator!=(const std::discard_block_engine<_RandomNumberEngine, __p, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:1093:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::discard_block_engine<_RandomNumberEngine, __p, __r>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:1290:5: note: candidate: ‘template<class _RandomNumberEngine, long unsigned int __w, class _UIntType> bool std::operator!=(const std::independent_bits_engine<_RandomNumberEngine, __w, _UIntType>&, const std::independent_bits_engine<_RandomNumberEngine, __w, _UIntType>&)’ 1290 | operator!=(const std::independent_bits_engine<_RandomNumberEngine, __w, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:1290:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::independent_bits_engine<_RandomNumberEngine, __w, _UIntType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:1545:5: note: candidate: ‘template<class _RandomNumberEngine, long unsigned int __k> bool std::operator!=(const std::shuffle_order_engine<_RandomNumberEngine, __k>&, const std::shuffle_order_engine<_RandomNumberEngine, __k>&)’ 1545 | operator!=(const std::shuffle_order_engine<_RandomNumberEngine, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:1545:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::shuffle_order_engine<_RandomNumberEngine, __k>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:1700:5: note: candidate: ‘template<class _IntType> bool std::operator!=(const std::uniform_int_distribution<_IntType>&, const std::uniform_int_distribution<_IntType>&)’ 1700 | operator!=(const std::uniform_int_distribution<_IntType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:1700:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::uniform_int_distribution<_IntType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:1921:5: note: candidate: ‘template<class _IntType> bool std::operator!=(const std::uniform_real_distribution<_IntType>&, const std::uniform_real_distribution<_IntType>&)’ 1921 | operator!=(const std::uniform_real_distribution<_IntType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:1921:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::uniform_real_distribution<_IntType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:2178:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::normal_distribution<_RealType>&, const std::normal_distribution<_RealType>&)’ 2178 | operator!=(const std::normal_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:2178:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::normal_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:2389:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::lognormal_distribution<_RealType>&, const std::lognormal_distribution<_RealType>&)’ 2389 | operator!=(const std::lognormal_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:2389:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::lognormal_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:2620:6: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::gamma_distribution<_RealType>&, const std::gamma_distribution<_RealType>&)’ 2620 | operator!=(const std::gamma_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:2620:6: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::gamma_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:2844:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::chi_squared_distribution<_RealType>&, const std::chi_squared_distribution<_RealType>&)’ 2844 | operator!=(const std::chi_squared_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:2844:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::chi_squared_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:3018:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::cauchy_distribution<_RealType>&, const std::cauchy_distribution<_RealType>&)’ 3018 | operator!=(const std::cauchy_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:3018:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::cauchy_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:3282:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::fisher_f_distribution<_RealType>&, const std::fisher_f_distribution<_RealType>&)’ 3282 | operator!=(const std::fisher_f_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:3282:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::fisher_f_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:3504:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::student_t_distribution<_RealType>&, const std::student_t_distribution<_RealType>&)’ 3504 | operator!=(const std::student_t_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:3504:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::student_t_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:3967:5: note: candidate: ‘template<class _IntType> bool std::operator!=(const std::binomial_distribution<_IntType>&, const std::binomial_distribution<_IntType>&)’ 3967 | operator!=(const std::binomial_distribution<_IntType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:3967:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::binomial_distribution<_IntType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:4146:5: note: candidate: ‘template<class _IntType> bool std::operator!=(const std::geometric_distribution<_IntType>&, const std::geometric_distribution<_IntType>&)’ 4146 | operator!=(const std::geometric_distribution<_IntType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:4146:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::geometric_distribution<_IntType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:4400:5: note: candidate: ‘template<class _IntType> bool std::operator!=(const std::negative_binomial_distribution<_IntType>&, const std::negative_binomial_distribution<_IntType>&)’ 4400 | operator!=(const std::negative_binomial_distribution<_IntType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:4400:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::negative_binomial_distribution<_IntType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:4626:5: note: candidate: ‘template<class _IntType> bool std::operator!=(const std::poisson_distribution<_IntType>&, const std::poisson_distribution<_IntType>&)’ 4626 | operator!=(const std::poisson_distribution<_IntType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:4626:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::poisson_distribution<_IntType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:4817:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::exponential_distribution<_RealType>&, const std::exponential_distribution<_RealType>&)’ 4817 | operator!=(const std::exponential_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:4817:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::exponential_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:5027:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::weibull_distribution<_RealType>&, const std::weibull_distribution<_RealType>&)’ 5027 | operator!=(const std::weibull_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:5027:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::weibull_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:5237:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::extreme_value_distribution<_RealType>&, const std::extreme_value_distribution<_RealType>&)’ 5237 | operator!=(const std::extreme_value_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:5237:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::extreme_value_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:5502:5: note: candidate: ‘template<class _IntType> bool std::operator!=(const std::discrete_distribution<_IntType>&, const std::discrete_distribution<_IntType>&)’ 5502 | operator!=(const std::discrete_distribution<_IntType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:5502:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::discrete_distribution<_IntType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:5773:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::piecewise_constant_distribution<_RealType>&, const std::piecewise_constant_distribution<_RealType>&)’ 5773 | operator!=(const std::piecewise_constant_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:5773:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::piecewise_constant_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:6046:5: note: candidate: ‘template<class _RealType> bool std::operator!=(const std::piecewise_linear_distribution<_RealType>&, const std::piecewise_linear_distribution<_RealType>&)’ 6046 | operator!=(const std::piecewise_linear_distribution<_RealType>& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:6046:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::piecewise_linear_distribution<_RealType>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:1: /usr/include/c++/11/optional:1054:5: note: candidate: ‘template<class _Tp, class _Up> constexpr std::__optional_ne_t<_Tp, _Up> std::operator!=(const std::optional<_Tp>&, const std::optional<_Up>&)’ 1054 | operator!=(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1054:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::optional<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:1: /usr/include/c++/11/optional:1185:5: note: candidate: ‘template<class _Tp, class _Up> constexpr std::__optional_ne_t<_Tp, _Up> std::operator!=(const std::optional<_Tp>&, const _Up&)’ 1185 | operator!=(const optional<_Tp>& __lhs, const _Up& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1185:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::optional<_Tp>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:1: /usr/include/c++/11/optional:1191:5: note: candidate: ‘template<class _Tp, class _Up> constexpr std::__optional_ne_t<_Up, _Tp> std::operator!=(const _Up&, const std::optional<_Tp>&)’ 1191 | operator!=(const _Up& __lhs, const optional<_Tp>& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1191:5: note: template argument deduction/substitution failed: Main.cpp:13:37: note: mismatched types ‘const std::optional<_Tp>’ and ‘char’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:133, from Main.cpp:1: /usr/include/c++/11/variant:1233:3: note: candidate: ‘template<class ... _Types> constexpr bool std::operator!=(const std::variant<_Types ...>&, const std::variant<_Types ...>&)’ 1233 | _VARIANT_RELATION_FUNCTION_TEMPLATE(!=, not_equal) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/variant:1233:3: note: template argument deduction/substitution failed: Main.cpp:13:37: note: ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} is not derived from ‘const std::variant<_Types ...>’ 13 | if(ret.size() && ret != '0') ret += ch; | ^~~ In file included from /usr/include/c++/11/random:49, from /usr/include/aarch64-linux-gnu/c++/11/bits/stdc++.h:108, from Main.cpp:1: /usr/include/c++/11/bits/random.h:3692:3: note: candidate: ‘bool std::operator!=(const std::bernoulli_distribution&, const std::bernoulli_distribution&)’ 3692 | operator!=(const std::bernoulli_distribution& __d1, | ^~~~~~~~ /usr/include/c++/11/bits/random.h:3692:49: note: no known conversion for argument 1 from ‘std::string’ {aka ‘std::__cxx11::basic_string<char>’} to ‘const std::bernoulli_distribution&’ 3692 | operator!=(const std::bernoulli_distribution& __d1, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ Main.cpp:17:32: error: lvalue required as left operand of assignment 17 | if(ret.size() >= 2 && ret[0] = '0') ret = ret.substr(1);
정답 개수:
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틀린 개수:
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실행 실패 개수:
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반례를 발견하지 못했습니다.