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View Compilation Error

0_0_39889466_10946.cpp: In function 'int main()':
0_0_39889466_10946.cpp:46:22: error: no match for 'operator==' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
   46 |                 if(op=='insert') insert(s);
      |                    ~~^~~~~~~~~~
      |                    |   |
      |                    |   int
      |                    std::string {aka std::__cxx11::basic_string<char>}
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/regex:68,
                 from .\stdc++.h:181:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/regex.h:1274:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const sub_match<_BiIter>&, __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)' (reversed)
 1274 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/regex.h:1274:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/regex.h:1441:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)' (reversed)
 1441 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/regex.h:1441:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/regex.h:1613:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)' (reversed)
 1613 |     operator==(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/regex.h:1613:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_algobase.h:67,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/algorithm:60,
                 from .\stdc++.h:51:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_iterator.h:534:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const reverse_iterator<_IteratorL>&, const reverse_iterator<_IteratorR>&) requires requires{{std::operator==::__x->base() == std::operator==::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}' (reversed)
  534 |     operator==(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_iterator.h:534:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::reverse_iterator<_IteratorL>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_iterator.h:1678:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&) requires requires{{std::operator==::__x->base() == std::operator==::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}' (reversed)
 1678 |     operator==(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/stl_iterator.h:1678:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string:43,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bitset:52,
                 from .\stdc++.h:52:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/allocator.h:237:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const allocator<_CharT>&, const allocator<_T2>&)' (reversed)
  237 |     operator==(const allocator<_T1>&, const allocator<_T2>&)
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/allocator.h:237:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::allocator<_CharT>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/basic_string.h:47,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string:54:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string_view:615:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(basic_string_view<_CharT, _Traits>, __type_identity_t<basic_string_view<_CharT, _Traits> >)' (reversed)
  615 |     operator==(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string_view:615:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/basic_string.h:3726:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> constexpr bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)' (reversed)
 3726 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/basic_string.h:3726:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/uses_allocator_args.h:38,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/memory_resource.h:41,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/string:58:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/tuple:1905:5: note: candidate: 'template<class ... _TElements, class ... _UElements> constexpr bool std::operator==(const tuple<_UTypes ...>&, const tuple<_UTypes ...>&)' (reversed)
 1905 |     operator==(const tuple<_TElements...>& __t,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/tuple:1905:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::tuple<_UTypes ...>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/functional:59,
                 from .\stdc++.h:53:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/std_function.h:737:5: note: candidate: 'template<class _Res, class ... _Args> bool std::operator==(const function<_Res(_ArgTypes ...)>&, nullptr_t)' (reversed)
  737 |     operator==(const function<_Res(_Args...)>& __f, nullptr_t) noexcept
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/std_function.h:737:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::function<_Res(_ArgTypes ...)>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/memory:78,
                 from .\stdc++.h:56:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/unique_ptr.h:829:5: note: candidate: 'template<class _Tp, class _Dp, class _Up, class _Ep> bool std::operator==(const unique_ptr<_Tp, _Dp>&, const unique_ptr<_Up, _Ep>&)' (reversed)
  829 |     operator==(const unique_ptr<_Tp, _Dp>& __x,
      |     ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/unique_ptr.h:829:5: note:   template argument deduction/substitution failed:
0_0_39889466_10946.cpp:46:24: note:   mismatched types 'const std::unique_ptr<_Tp, _Dp>' and 'int'
   46 |                 if(op=='insert') insert(s);
      |                        ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/unique_ptr.h:837:5: note: can


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