Language: C++

#include <cstdio>
#include <vector>
#include <unordered_map>
using namespace std;

struct index_tt {
	int total;
	int truck;
};

/*
bool operator<(const index_tt& lhs, const index_tt& rhs) {
	if(lhs.total<rhs.total) {
		return true;
	} else if(lhs.total==rhs.total && lhs.truck<rhs.truck) {
		return true;
	} else {
		return true;
	}
}
*/

unordered_map<index_tt,int> pack;

int make_min_packing(index_tt nq,vector<int>& sum) {
	int m;
	index_tt temp;
	if(nq.truck==1) {
		m=sum[nq.total-1];
		pack[nq]=m;
	} else {
		for(int i=1; i<=nq.total-nq.truck+1; ++i) {
			temp.total=nq.total-i;
			temp.truck=nq.truck-1;
			if(pack.find(temp)==pack.end()) {
				pack[temp]=make_min_packing(temp,sum);
			}
			m=min(m,max(pack[temp],sum[nq.total-1]-sum[nq.total-i-1]));
		}
	}
	return m;
}

int main() {
	int n,q,w;
	vector<int> sum;
	index_tt idx;
	scanf("%d%d",&n,&q);
	sum.resize(n);
	idx.total=n;
	idx.truck=q;
	scanf("%d",&sum[0]);
	for(int i=1; i<n; ++i) {
		scanf("%d",&w);
		sum[i]=sum[i-1]+w;
	}
	printf("%d\n",make_min_packing(idx,sum));
	return 0;
}

Compiler output:
a.cc:23:29: error: use of deleted function 'std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::unordered_map() [with _Key = index_tt; _Tp = int; _Hash = std::hash<index_tt>; _Pred = std::equal_to<index_tt>; _Alloc = std::allocator<std::pair<const index_tt, int> >]'
   23 | unordered_map<index_tt,int> pack;
      |                             ^~~~
In file included from /usr/include/c++/14/unordered_map:41,
                 from a.cc:3:
/usr/include/c++/14/bits/unordered_map.h:148:7: note: 'std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::unordered_map() [with _Key = index_tt; _Tp = int; _Hash = std::hash<index_tt>; _Pred = std::equal_to<index_tt>; _Alloc = std::allocator<std::pair<const index_tt, int> >]' is implicitly deleted because the default definition would be ill-formed:
  148 |       unordered_map() = default;
      |       ^~~~~~~~~~~~~
/usr/include/c++/14/bits/unordered_map.h:148:7: error: use of deleted function 'std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits>::_Hashtable() [with _Key = index_tt; _Value = std::pair<const index_tt, int>; _Alloc = std::allocator<std::pair<const index_tt, int> >; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<index_tt>; _Hash = std::hash<index_tt>; _RangeHash = std::__detail::_Mod_range_hashing; _Unused = std::__detail::_Default_ranged_hash; _RehashPolicy = std::__detail::_Prime_rehash_policy; _Traits = std::__detail::_Hashtable_traits<true, false, true>]'
In file included from /usr/include/c++/14/bits/unordered_map.h:33:
/usr/include/c++/14/bits/hashtable.h:539:7: note: 'std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits>::_Hashtable() [with _Key = index_tt; _Value = std::pair<const index_tt, int>; _Alloc = std::allocator<std::pair<const index_tt, int> >; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<index_tt>; _Hash = std::hash<index_tt>; _RangeHash = std::__detail::_Mod_range_hashing; _Unused = std::__detail::_Default_ranged_hash; _RehashPolicy = std::__detail::_Prime_rehash_policy; _Traits = std::__detail::_Hashtable_traits<true, false, true>]' is implicitly deleted because the default definition would be ill-formed:
  539 |       _Hashtable() = default;
      |       ^~~~~~~~~~
/usr/include/c++/14/bits/hashtable.h:539:7: error: use of deleted function 'std::__detail::_Hashtable_base<_Key, _Value, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _Traits>::_Hashtable_base() [with _Key = index_tt; _Value = std::pair<const index_tt, int>; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<index_tt>; _Hash = std::hash<index_tt>; _RangeHash = std::__detail::_Mod_range_hashing; _Unused = std::__detail::_Default_ranged_hash; _Traits = std::__detail::_Hashtable_traits<true, false, true>]'
In file included from /usr/include/c++/14/bits/hashtable.h:35:
/usr/include/c++/14/bits/hashtable_policy.h:1731:7: note: 'std::__detail::_Hashtable_base<_Key, _Value, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _Traits>::_Hashtable_base() [with _Key = index_tt; _Value = std::pair<const index_tt, int>; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<index_tt>; _Hash = std::hash<index_tt>; _RangeHash = std::__detail::_Mod_range_hashing; _Unused = std::__detail::_Default_ranged_hash; _Traits = std::__detail::_Hashtable_traits<true, false, true>]' is implicitly deleted because the default definition would be ill-formed:
 1731 |       _Hashtable_base() = default;
      |       ^~~~~~~~~~~~~~~
/usr/include/c++/14/bits/hashtable_policy.h:1731:7: error: use of deleted function 'std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHash, _Unused, __cache_hash_code>::_Hash_code_base() [with _Key = index_tt; _Value = std::pair<const index_tt, int>; _ExtractKey = std::__detail::_Select1st; _Hash = std::hash<index_tt>; _RangeHash = std::__detail::_Mod_range_hashing; _Unused = std::__detail::_Default_ranged_hash; bool __cache_hash_code = true]'
/usr/include/c++/14/bits/hashtable_policy.h: In instantiation of 'std::__detail::_Hashtable_ebo_helper<_Nm, _Tp, true>::_Hashtable_ebo_helper() [with int _Nm = 1; _Tp = std::hash<index_tt>]':
/usr/include/c++/14/bits/hashtable_policy.h:1328:7:   required from here
 1328 |       _Hash_code_base() = default;
      |       ^~~~~~~~~~~~~~~
/usr/include/c++/14/bits/hashtable_policy.h:1245:49: error: use of deleted function 'std::hash<index_tt>::hash()'
 1245 |       _Hashtable_ebo_helper() noexcept(noexcept(_Tp())) : _Tp() { }
      |                                                 ^~~~~
In file included from /usr/include/c++/14/bits/stl_bvector.h:65,
                 from /usr/include/c++/14/vector:67,
                 from a.cc:2:
/usr/include/c++/14/bits/functional_hash.h:102:12: note: 'std::hash<index_tt>::hash()' is implicitly deleted because the default definition would be ill-formed:
  102 |     struct hash : __hash_enum<_Tp>
      |            ^~~~
/usr/include/c++/14/bits/functional_hash.h:102:12: error: no matching function for call to 'std::__hash_enum<index_tt, false>::__hash_enum()'
/usr/include/c++/14/bits/functional_hash.h:83:7: note: candidate: 'std::__hash_enum<_Tp, <anonymous> >::__hash_enum(std::__hash_enum<_Tp, <anonymous> >&&) [with _Tp = index_tt; bool <anonymous> = false]'
   83 |       __hash_enum(__hash_enum&&);
      |       ^~~~~~~~~~~
/usr/include/c++/14/bits/functional_hash.h:83:7: note:   candidate expects 1 argument, 0 provided
/usr/include/c++/14/bits/functional_hash.h:102:12: error: 'std::__hash_enum<_Tp, <anonymous> >::~__hash_enum() [with _Tp = index_tt; bool <anonymous> = false]' is private within this context
  102 |     struct hash : __hash_enum<_Tp>
      |            ^~~~
/usr/include/c++/14/bits/functional_hash.h:84:7: note: declared private here
   84 |       ~__hash_enum();
      |       ^
/usr/include/c++/14/bits/hashtable_policy.h:1245:49: note: use '-fdiagnostics-all-candidates' to display considered candidates
 1245 |       _Hashtable_ebo_helper() noexcept(noexcept(_Tp())) : _Tp() { }
      |                                                 ^~~~~
/usr/include/c++/14/bits/hashtable_policy.h:1328:7: note: 'std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHash, _Unused, __cache_hash_code>::_Hash_code_base() [with _Key = index_tt; _Value = std::pair<const index_tt, int>; _ExtractKey = std::__detail::_Select1st; _Hash = std::hash<index_tt>; _RangeHash = std::__detail::_Mod_range_hashing; _Unused = std::__detail::_Default_ranged_hash; bool __cache_hash_code = true]' is implicitly deleted because the default definition would be ill-formed:
 1328 |       _Hash_code_base() = default;
      |       ^~~~~~~~~~~~~~~
/usr/include/c++/14/bits/hashtable_policy.h:1328:7: error: use of deleted function 'std::__detail::_Hashtable_ebo_helper<1, std::hash<index_tt>, true>::~_Hashtable_ebo_helper()'
/usr/include/c++/14/bits/hashtable_policy.h:1242:12: note: 'std::__detail::_Hashtable_ebo_helper<1, std::hash<index_tt>, true>::~_Hashtable_ebo_helper()' is implicitly deleted because the default definition would be ill-formed:
 1242 |     struct _Hashtable_ebo_helper<_Nm, _Tp, true>
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/hashtable_policy.h:1242:12: error: use of deleted function 'std::hash<index_tt>::~hash()'
/usr/include/c++/14/bits/functional_hash.h:102:12: note: 'std::hash<index_tt>::~hash()' is implicitly deleted because the default definition would be ill-formed:
  102 |     struct hash : __hash_enum<_Tp>
      |            ^~~~
/usr/include/c++/14/bits/functional_hash.h:102:12: error: 'std::__hash_enum<_Tp, <anonymous> >::~__hash_enum() [with _Tp = index_tt; bool <anonymous> = false]' is private within this context
/usr/include/c++/14/bits/functional_hash.h:84:7: note: declared private here
   84 |       ~__hash_enum();
      |       ^
/usr/include/c++/14/bits/hashtable_policy.h:1731:7: note: use '-fdiagnostics-all-candidates' to display considered candidates
 1731 |       _Hashtable_base() = default;
      |       ^~~~~~~~~~~~~~~
/usr/include/c++/14/bits/hashtable_policy.h:1731:7: error: use of deleted function 'std::__detail::_Hash_code_base<index_tt, std::pair<const index_tt, int>, std::__detail::_Select1st, std::hash<index_tt>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>::~_Hash_code_base()'
/usr/include/c++/14/bits/hashtable_policy.h:1306:12: note: 'std::__detail::_Hash_code_base<index_tt, std::pair<const index_tt, int>, std::__detail::_Select1st, std::hash<index_tt>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>::~_Hash_code_base()' is implicitly deleted because the default definition would be ill-formed:
 1306 |     struct _Hash_code_base
      |            ^~~~~~~~~~~~~~~
/usr/include/c++/14/bits/hashtable_policy.h:1306:12: error: use of deleted function 'std::__detail::_Hashtable_ebo_helper<1, std::hash<index_tt>, true>::~_Hashtable_ebo_helper()'
/usr/include/c++/14/bits/hashtable.h:539:7: note: use '-fdiagnostics-all-candidates' to display considered candidates
  539 |       _Hashtable() = default;
      |       ^~~~~~~~~~
/usr/include/c++/14/bits/hashtable.h:539:7: error: use of deleted function 'std::__detail::_Hashtable_base<index_tt, std::pair<const index_tt, int>, std::__detail::_Select1st, std::equal_to<index_tt>, std::hash<index_tt>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >::~_Hashtable_base()'
/usr/include/c++/14/bits/hashtable_policy.h:1688:12: note: 'std::__detail::_Hashtable_base<index_tt, std::pair<const index_tt, int>, std::__detail::_Select1st, std::equal_to<index_tt>, std::hash<index_tt>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >::~_Hashtable_base()' is implicitly deleted because the default definition would be ill-formed:
 1688 |     struct _Hashtable_base
      |            ^~~~~~~~~~~~~~~
/usr/include/c++/14/bits/hashtable_policy.h:1688:12: error: use of deleted function 'std::__detail::_Hash_code_base<index_tt, std::pair<const index_tt, int>, s