Language: C++

#include <bits/stdc++.h>
using namespace std;
  int main () {
  string A = "A";
  string T = "T";
  string C = "C";
  string G = "G";
     vector <string> vec(10) ;
    for (int i = 0; i < 10; i++) {
    cin >> vec.at(i);
     
      vector <int> unti(10);
        
      if ( vec.at(i) == A || vec.at(i) ==T || vec.at(i) ==C || vec.at(i) ==G){
        unti.at(i) = unti.at(i-1) +1 ;
      }
      else{
        unti.at(i) = 0  ;
      }
      
      cout <<max ( unti.at(0) ,unti.at(1),unti.at(2) ,unti.at(3),
                  unti.at(4),unti.at(5),unti.at(6),unti.at(7),
                  unti.at(8),unti.at(9) ) << endl;
    }
    

Compiler output:
a.cc: In function 'int main()':
a.cc:21:18: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type&)'
   21 |       cout <<max ( unti.at(0) ,unti.at(1),unti.at(2) ,unti.at(3),
      |              ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   22 |                   unti.at(4),unti.at(5),unti.at(6),unti.at(7),
      |                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   23 |                   unti.at(8),unti.at(9) ) << endl;
      |                   ~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   candidate expects 2 arguments, 10 provided
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 10 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 10 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   candidate expects 2 arguments, 10 provided
a.cc:24:6: error: expected '}' at end of input
   24 |     }
      |      ^
a.cc:3:15: note: to match this '{'
    3 |   int main () {
      |               ^