Language: C++

#include <iostream>
#include <vector>
using namespace std;

int main()
{
  int n;
  cin >> n;
  vector<uint64_t> v(n);

  for (auto i = 0; i < n; i++) {
    cin >> v[i];
  }
  sort(begin(v), end(v));
  vector<uint64_t> w(v);
  sort(begin(w), end(w), greater<>());
  uint64_t sum = 0;
  for (auto i = 0; i < n / 2; i++) {
    sum += w[i] - v[i];
  }
  for (auto i = 1; i < n / 2; i++) {
    sum += w[i] - v[i - 1];
  }
  sum += max(w[0] - v[n / 2], v[n / 2] - v[0]);
  cout << sum << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:10: error: 'uint64_t' was not declared in this scope
    9 |   vector<uint64_t> v(n);
      |          ^~~~~~~~
a.cc:3:1: note: 'uint64_t' is defined in header '<cstdint>'; this is probably fixable by adding '#include <cstdint>'
    2 | #include <vector>
  +++ |+#include <cstdint>
    3 | using namespace std;
a.cc:9:18: error: template argument 1 is invalid
    9 |   vector<uint64_t> v(n);
      |                  ^
a.cc:9:18: error: template argument 2 is invalid
a.cc:12:13: error: invalid types 'int[int]' for array subscript
   12 |     cin >> v[i];
      |             ^
a.cc:14:13: error: no matching function for call to 'begin(int&)'
   14 |   sort(begin(v), end(v));
      |        ~~~~~^~~
In file included from /usr/include/c++/14/bits/range_access.h:36,
                 from /usr/include/c++/14/string:53,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/initializer_list:88:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::begin(initializer_list<_Tp>)'
   88 |     begin(initializer_list<_Tp> __ils) noexcept
      |     ^~~~~
/usr/include/c++/14/initializer_list:88:5: note:   template argument deduction/substitution failed:
a.cc:14:13: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   14 |   sort(begin(v), end(v));
      |        ~~~~~^~~
/usr/include/c++/14/bits/range_access.h:52:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&)'
   52 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/14/bits/range_access.h:52:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&) [with _Container = int]':
a.cc:14:13:   required from here
   14 |   sort(begin(v), end(v));
      |        ~~~~~^~~
/usr/include/c++/14/bits/range_access.h:52:50: error: request for member 'begin' in '__cont', which is of non-class type 'int'
   52 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |                                           ~~~~~~~^~~~~
/usr/include/c++/14/bits/range_access.h:63:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&)'
   63 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/14/bits/range_access.h:63:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(const _Container&) [with _Container = int]':
a.cc:14:13:   required from here
   14 |   sort(begin(v), end(v));
      |        ~~~~~^~~
/usr/include/c++/14/bits/range_access.h:63:56: error: request for member 'begin' in '__cont', which is of non-class type 'const int'
   63 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |                                                 ~~~~~~~^~~~~
/usr/include/c++/14/bits/range_access.h:95:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::begin(_Tp (&)[_Nm])'
   95 |     begin(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~~~
/usr/include/c++/14/bits/range_access.h:95:5: note:   template argument deduction/substitution failed:
a.cc:14:13: note:   mismatched types '_Tp [_Nm]' and 'int'
   14 |   sort(begin(v), end(v));
      |        ~~~~~^~~
/usr/include/c++/14/bits/range_access.h:113:31: note: candidate: 'template<class _Tp> _Tp* std::begin(valarray<_Tp>&)'
  113 |   template<typename _Tp> _Tp* begin(valarray<_Tp>&) noexcept;
      |                               ^~~~~
/usr/include/c++/14/bits/range_access.h:113:31: note:   template argument deduction/substitution failed:
a.cc:14:13: note:   mismatched types 'std::valarray<_Tp>' and 'int'
   14 |   sort(begin(v), end(v));
      |        ~~~~~^~~
/usr/include/c++/14/bits/range_access.h:114:37: note: candidate: 'template<class _Tp> const _Tp* std::begin(const valarray<_Tp>&)'
  114 |   template<typename _Tp> const _Tp* begin(const valarray<_Tp>&) noexcept;
      |                                     ^~~~~
/usr/include/c++/14/bits/range_access.h:114:37: note:   template argument deduction/substitution failed:
a.cc:14:13: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
   14 |   sort(begin(v), end(v));
      |        ~~~~~^~~
a.cc:14:21: error: no matching function for call to 'end(int&)'
   14 |   sort(begin(v), end(v));
      |                  ~~~^~~
/usr/include/c++/14/initializer_list:99:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::end(initializer_list<_Tp>)'
   99 |     end(initializer_list<_Tp> __ils) noexcept
      |     ^~~
/usr/include/c++/14/initializer_list:99:5: note:   template argument deduction/substitution failed:
a.cc:14:21: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   14 |   sort(begin(v), end(v));
      |                  ~~~^~~
/usr/include/c++/14/bits/range_access.h:74:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
   74 |     end(_Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/14/bits/range_access.h:74:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&) [with _Container = int]':
a.cc:14:21:   required from here
   14 |   sort(begin(v), end(v));
      |                  ~~~^~~
/usr/include/c++/14/bits/range_access.h:74:48: error: request for member 'end' in '__cont', which is of non-class type 'int'
   74 |     end(_Container& __cont) -> decltype(__cont.end())
      |                                         ~~~~~~~^~~
/usr/include/c++/14/bits/range_access.h:85:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
   85 |     end(const _Container& __cont) -> decltype(__cont.end())
      |     ^~~
/usr/include/c++/14/bits/range_access.h:85:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&) [with _Container = int]':
a.cc:14:21:   required from here
   14 |   sort(begin(v), end(v));
      |                  ~~~^~~
/usr/include/c++/14/bits/range_access.h:85:54: error: request for member 'end' in '__cont', which is of non-class type 'const int'
   85 |     end(const _Container& __cont) -> decltype(__cont.end())
      |                                               ~~~~~~~^~~
/usr/include/c++/14/bits/range_access.h:106:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
  106 |     end(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~
/usr/include/c++/14/bits/range_access.h:106:5: note:   template argument deduction/substitution failed:
a.cc:14:21: note:   mismatched types '_Tp [_Nm]' and 'int'
   14 |   sort(begin(v), end(v));
      |                  ~~~^~~
/usr/include/c++/14/bits/range_access.h:115:31: note: candidate: 'template<class _Tp> _Tp* std::end(valarray<_Tp>&)'
  115 |   template<typename _Tp> _Tp* end(valarray<_Tp>&) noexcept;
      |                               ^~~
/usr/include/c++/14/bits/range_access.h:115:31: note:   template argument deduction/substitution failed:
a.cc:14:21: note:   mismatched types 'std::valarray<_Tp>' and 'int'
   14 |   sort(begin(v), end(v));
      |                  ~~~^~~
/usr/include/c++/14/bits/range_access.h:116:37: note: candidate: 'template<class _Tp> const _Tp* std::end(const valarray<_Tp>&)'
  116 |   template<typename _Tp> const _Tp* end(const valarray<_Tp>&) noexcept;
      |                                     ^~~
/usr/include/c++/14/bits/range_access.h:116:37: note:   template argument deduction/substitution failed:
a.cc:14:21: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
   14 |   sort(begin(v), end(v));
      |                  ~~~^~~
a.cc:14:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   14 |   sort(begin(v), end(v));
      |   ^~~~
      |   short
a.cc:15:18: error: template argument 2 is invalid
   15 |   vector<uint64_t> w(v);
      |                  ^
a.cc:16:13: error: no matching function for call to 'begin(int&)'
   16 |   sort(begin(w), end(w), greater<>());
      |        ~~~~~^~~
/usr/include/c++/14/initializer_list:88:5: note: candidate: 'template<class _Tp> constexpr const _Tp* std::begin(initializer_list<_Tp>)'
   88 |     begin(initializer_list<_Tp> __ils) noexcept
      |     ^~~~~
/usr/include/c++/14/initializer_list:88:5: note:   template argument deduction/substitution failed:
a.cc:16:13: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   16 |   sort(begin(w), end(w), greater<>());
      |        ~~~~~^~~
/usr/include/c++/14/bits/range_access.h:52:5: note: candidate: 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&)'
   52 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/usr/include/c++/14/bits/range_access.h:52:5: note:   template argument deduction/substitution failed:
/usr/include/c++/14/bits/range_access.h: In substitution of 'template<class _Container> constexpr decltype (__cont.begin()) std::begin(_Container&) [with _Container = int]':
a.cc:16:13:   required from here
   16 |   sort(begin(w), end(w), greater<>());
      |        ~~~~~^~~
/usr/include/c++/14/bits/range_access.h:52:50: error: request for member 'begin' in '__cont', which is of non-class type 'int'
   52 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |                                           ~~~~~~~^~~~~
/usr/include/c++/14/bits/range_acces