answer.code: In function ‘int main()’:
answer.code:14:18: error: no matching function for call to ‘max(std::__iterator_traits<__gnu_cxx::__normal_iterator<char*, std::__cxx11::basic_string<char> >, void>::difference_type, int&)’
   14 |             k=max(count(s.begin(),s.end(),s[i]),k);
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:51,
                 from answer.code:1:
/usr/include/c++/13/bits/stl_algobase.h:257:5: note: candidate: ‘template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)’
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
answer.code:14:18: note:   deduced conflicting types for parameter ‘const _Tp’ (‘long int’ and ‘int’)
   14 |             k=max(count(s.begin(),s.end(),s[i]),k);
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/13/bits/stl_algobase.h:303:5: note: candidate: ‘template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)’
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:303:5: note:   template argument deduction/substitution failed:
answer.code:14:18: note:   deduced conflicting types for parameter ‘const _Tp’ (‘long int’ and ‘int’)
   14 |             k=max(count(s.begin(),s.end(),s[i]),k);
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61:
/usr/include/c++/13/bits/stl_algo.h:5795:5: note: candidate: ‘template<class _Tp> _Tp std::max(initializer_list<_Tp>)’
 5795 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5795:5: note:   template argument deduction/substitution failed:
answer.code:14:18: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘long int’
   14 |             k=max(count(s.begin(),s.end(),s[i]),k);
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note: candidate: ‘template<class _Tp, class _Compare> _Tp std::max(initializer_list<_Tp>, _Compare)’
 5805 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5805:5: note:   template argument deduction/substitution failed:
answer.code:14:18: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘long int’
   14 |             k=max(count(s.begin(),s.end(),s[i]),k);
      |               ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~