Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  string s; 
  cin >> s;
  int a=300000, z=0;
  
  for(int i=0; i<s.size; i++){
  	if(s[i] == 'A') a = min(s[i],a);
    if(s[i] == 'Z') z = max(s[i],z);
  }
  
  cout << z - a + 1 << endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:20: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
    9 |   for(int i=0; i<s.size; i++){
      |                  ~~^~~~
      |                        ()
a.cc:10:32: error: no matching function for call to 'min(__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type&, int&)'
   10 |         if(s[i] == 'A') a = min(s[i],a);
      |                             ~~~^~~~~~~~
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:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:10:32: note:   deduced conflicting types for parameter 'const _Tp' ('char' and 'int')
   10 |         if(s[i] == 'A') a = min(s[i],a);
      |                             ~~~^~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:10:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'char'
   10 |         if(s[i] == 'A') a = min(s[i],a);
      |                             ~~~^~~~~~~~
a.cc:11:28: error: no matching function for call to 'max(__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type&, int&)'
   11 |     if(s[i] == 'Z') z = max(s[i],z);
      |                         ~~~^~~~~~~~
/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:   template argument deduction/substitution failed:
a.cc:11:28: note:   deduced conflicting types for parameter 'const _Tp' ('char' and 'int')
   11 |     if(s[i] == 'Z') z = max(s[i],z);
      |                         ~~~^~~~~~~~
/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, 2 provided
/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, 2 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:   template argument deduction/substitution failed:
a.cc:11:28: note:   mismatched types 'std::initializer_list<_Tp>' and 'char'
   11 |     if(s[i] == 'Z') z = max(s[i],z);
      |                         ~~~^~~~~~~~