Language: C++

#include <iostream>
#include <cstdio>
#include <cmath>

using namespace std;
void erase(int *ptr, int *last)
{
    while ( ++ptr < last )
        *(ptr - 1) = *ptr;      
}


int main(void){
    int n;
    cin >> n;
    int a[n];
    int tmp[n+2];
    int sum[n];
    
    for (int i = 0; i < n; i++) {
        scanf("%d", &a[i]);
    }
    for (int j = 0; j < n; j++) {
        for (int i = 0; i < n; i++) {
          tmp[i+1] = a[i];//copy
          tmp[0] = 0;
          tmp[n+2] = 0;
          erase(begin(a)+i,end(a));
          
          sum[j] += abs(tmp[i] - tmp[i+1]);
          sum[j] += abs(tmp[n+1] - tmp[n+2]);
        }

    }
        
    for (int i = 0; i < n; i++) {
        cout << sum[i] << endl;
    }
    
    
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:28:22: error: no matching function for call to 'begin(int [n])'
   28 |           erase(begin(a)+i,end(a));
      |                 ~~~~~^~~
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:28:22: note:   mismatched types 'std::initializer_list<_Tp>' and 'int*'
   28 |           erase(begin(a)+i,end(a));
      |                 ~~~~~^~~
/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:
a.cc:28:22: note:   variable-sized array type 'int [n]' is not a valid template argument
   28 |           erase(begin(a)+i,end(a));
      |                 ~~~~~^~~
/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:
a.cc:28:22: note:   variable-sized array type 'int [n]' is not a valid template argument
   28 |           erase(begin(a)+i,end(a));
      |                 ~~~~~^~~
/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:28:22: note:   variable-sized array type 'long int' is not a valid template argument
   28 |           erase(begin(a)+i,end(a));
      |                 ~~~~~^~~
/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:28:22: note:   mismatched types 'std::valarray<_Tp>' and 'int [n]'
   28 |           erase(begin(a)+i,end(a));
      |                 ~~~~~^~~
/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:28:22: note:   mismatched types 'const std::valarray<_Tp>' and 'int [n]'
   28 |           erase(begin(a)+i,end(a));
      |                 ~~~~~^~~
a.cc:28:31: error: no matching function for call to 'end(int [n])'
   28 |           erase(begin(a)+i,end(a));
      |                            ~~~^~~
/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:28:31: note:   mismatched types 'std::initializer_list<_Tp>' and 'int*'
   28 |           erase(begin(a)+i,end(a));
      |                            ~~~^~~
/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:
a.cc:28:31: note:   variable-sized array type 'int [n]' is not a valid template argument
   28 |           erase(begin(a)+i,end(a));
      |                            ~~~^~~
/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:
a.cc:28:31: note:   variable-sized array type 'int [n]' is not a valid template argument
   28 |           erase(begin(a)+i,end(a));
      |                            ~~~^~~
/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:28:31: note:   variable-sized array type 'long int' is not a valid template argument
   28 |           erase(begin(a)+i,end(a));
      |                            ~~~^~~
/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:28:31: note:   mismatched types 'std::valarray<_Tp>' and 'int [n]'
   28 |           erase(begin(a)+i,end(a));
      |                            ~~~^~~
/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:28:31: note:   mismatched types 'const std::valarray<_Tp>' and 'int [n]'
   28 |           erase(begin(a)+i,end(a));
      |                            ~~~^~~