Language: C++

#include<iostream>
#include<queue>
using namespace std;
signed main(){
  int n, m;
  cin >> n >> m;
  priority_queue<int> Q;
  for(int i=0; i<n; i++){
  	int a; cin >> a;
    Q.push(a);
  }
  while(m--){
  	int a; a = Q.top(); Q.pop();
    Q.push(a/2);
  }
  long long sum = 0;
  for(const auto &a: Q){
  	sum += a;
  }
  cout << sum << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:22: error: no matching function for call to 'begin(std::priority_queue<int>&)'
   17 |   for(const auto &a: Q){
      |                      ^
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:17:22: note:   'std::priority_queue<int>' is not derived from 'std::initializer_list<_Tp>'
   17 |   for(const auto &a: Q){
      |                      ^
/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 = std::priority_queue<int>]':
a.cc:17:22:   required from here
   17 |   for(const auto &a: Q){
      |                      ^
/usr/include/c++/14/bits/range_access.h:52:50: error: 'class std::priority_queue<int>' has no member named 'begin'
   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 = std::priority_queue<int>]':
a.cc:17:22:   required from here
   17 |   for(const auto &a: Q){
      |                      ^
/usr/include/c++/14/bits/range_access.h:63:56: error: 'const class std::priority_queue<int>' has no member named 'begin'
   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:17:22: note:   mismatched types '_Tp [_Nm]' and 'std::priority_queue<int>'
   17 |   for(const auto &a: Q){
      |                      ^
/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:17:22: note:   'std::priority_queue<int>' is not derived from 'std::valarray<_Tp>'
   17 |   for(const auto &a: Q){
      |                      ^
/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:17:22: note:   'std::priority_queue<int>' is not derived from 'const std::valarray<_Tp>'
   17 |   for(const auto &a: Q){
      |                      ^
a.cc:17:22: error: no matching function for call to 'end(std::priority_queue<int>&)'
/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:17:22: note:   'std::priority_queue<int>' is not derived from 'std::initializer_list<_Tp>'
   17 |   for(const auto &a: Q){
      |                      ^
/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 = std::priority_queue<int>]':
a.cc:17:22:   required from here
   17 |   for(const auto &a: Q){
      |                      ^
/usr/include/c++/14/bits/range_access.h:74:48: error: 'class std::priority_queue<int>' has no member named 'end'
   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 = std::priority_queue<int>]':
a.cc:17:22:   required from here
   17 |   for(const auto &a: Q){
      |                      ^
/usr/include/c++/14/bits/range_access.h:85:54: error: 'const class std::priority_queue<int>' has no member named 'end'
   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:17:22: note:   mismatched types '_Tp [_Nm]' and 'std::priority_queue<int>'
   17 |   for(const auto &a: Q){
      |                      ^
/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:17:22: note:   'std::priority_queue<int>' is not derived from 'std::valarray<_Tp>'
   17 |   for(const auto &a: Q){
      |                      ^
/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:17:22: note:   'std::priority_queue<int>' is not derived from 'const std::valarray<_Tp>'
   17 |   for(const auto &a: Q){
      |                      ^