| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1173657 | ivaziva | 수열 (APIO14_sequence) | C++20 | 컴파일 에러 | 0 ms | 0 KiB |
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
#define MAXN 100001
#define MAXM 201
#define int long long
const int MIN=-1e9,MAX=1e9;
struct Node {
pair<int,int> line;
Node *left, *right;
bool active;
Node():line({0,-LLONG_MAX}),left(nullptr),right(nullptr),active(false){}
};
class LiChaoTree {
private:
Node* root;
int minX,maxX;
int get(int x,pair<int,int> line) {return line.first*x+line.second;}
void update(Node*& node,int l,int r,pair<int,int> line)
{
if (!node) node=new Node();
if (!node->active) {node->active=true;node->line=line;return;}
int mid=(l+r)/2;
bool leftBetter=get(l,line)>get(l,node->line);
bool midBetter=get(mid,line)>get(mid,node->line);
if (midBetter) swap(node->line,line);
if (l==r) return;
if (leftBetter!=midBetter) update(node->left,l,mid,line);
else update(node->right,mid+1,r,line);
}
pair<int,int> query(Node* node,int l,int r,int x)
{
if (!node or !node->active) return {0,-LLONG_MAX};
int mid=(l+r)/2;pair<int,int> bestLine=node->line;
if (x<=mid)
{
pair<int,int> leftLine=query(node->left,l,mid,x);
if (get(x,leftLine)>get(x,bestLine)) bestLine=leftLine;
}
else
{
pair<int,int> rightLine=query(node->right,mid+1,r,x);
if (get(x,rightLine)>get(x,bestLine)) bestLine=rightLine;
}
return bestLine;
}
void clear(Node* &node)
{
if (!node) return;
clear(node->left);clear(node->right);delete node;node=nullptr;
}
public:
LiChaoTree(int minX,int maxX):root(nullptr),minX(minX),maxX(maxX){}
void addLine(pair<int,int> line) {update(root,minX,maxX,line);}
pair<int,int> getMax(int x) {return query(root,minX,maxX,x);}
void clear(){clear(root);root=nullptr;}
};
int n,k;
int pref[MAXN],dp[2][MAXN],where[MAXM][MAXN];
unordered_map<pair<int,int>,int> mapa;
LiChaoTree tree(MIN,MAX);
vector<int> ans;
int eval(pair<int,int> linija,int x){return (long long)(linija.first*x)+linija.second;}
int32_t main()
{
ios_base::sync_with_stdio(false);
ios::sync_with_stdio(false);
cin.tie(0);cout.tie(0);cin>>n>>k;pref[0]=0;
for (int i=1;i<=n;i++) {cin>>pref[i];pref[i]+=pref[i-1];}
for (int i=1;i<n;i++) dp[0][i]=(long long)(pref[i]*(pref[n]-pref[i]));
for (int br=2;br<=k;br++)
{
for (int pos=br;pos<n;pos++)
{
tree.addLine({pref[pos-1],dp[0][pos-1]-(long long)(pref[pos-1]*pref[n])});
mapa[{pref[pos-1],dp[0][pos-1]-(long long)(pref[pos-1]*pref[n])}]=pos-1;
pair<int,int> resenje=tree.getMax(pref[pos]);dp[1][pos]=(long long)(pref[pos]*(pref[n]-pref[pos]))+eval(resenje,pref[pos]);
where[br][pos]=mapa[resenje];
}
for (int pos=br;pos<n;pos++) dp[0][pos]=dp[1][pos];
tree.clear();mapa.clear();
}
int maks=dp[0][k],pos=k;
for (int i=k+1;i<n;i++)
{
if (dp[0][i]>maks) {maks=dp[0][i];pos=i;}
}
cout<<maks<<endl;ans.push_back(pos);
for (int i=k;i>=2;i--) {ans.push_back(where[i][pos]);pos=where[i][pos];}
for (int pos=ans.size()-1;pos>=0;pos--) cout<<ans[pos]<<" ";
cout<<endl;return 0;
}
컴파일 시 표준 에러 (stderr) 메시지
sequence.cpp:65:34: error: use of deleted function 'std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::unordered_map() [with _Key = std::pair<long long int, long long int>; _Tp = long long int; _Hash = std::hash<std::pair<long long int, long long int> >; _Pred = std::equal_to<std::pair<long long int, long long int> >; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >]'
65 | unordered_map<pair<int,int>,int> mapa;
| ^~~~
In file included from /usr/include/c++/11/unordered_map:47,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/unordered_map.h:141:7: note: 'std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::unordered_map() [with _Key = std::pair<long long int, long long int>; _Tp = long long int; _Hash = std::hash<std::pair<long long int, long long int> >; _Pred = std::equal_to<std::pair<long long int, long long int> >; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >]' is implicitly deleted because the default definition would be ill-formed:
141 | unordered_map() = default;
| ^~~~~~~~~~~~~
/usr/include/c++/11/bits/unordered_map.h:141:7: error: use of deleted function 'std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits>::_Hashtable() [with _Key = std::pair<long long int, long long int>; _Value = std::pair<const std::pair<long long int, long long int>, long long int>; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<long long int, long long int> >; _Hash = std::hash<std::pair<long long int, long long int> >; _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++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable.h:528:7: note: 'std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits>::_Hashtable() [with _Key = std::pair<long long int, long long int>; _Value = std::pair<const std::pair<long long int, long long int>, long long int>; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<long long int, long long int> >; _Hash = std::hash<std::pair<long long int, long long int> >; _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:
528 | _Hashtable() = default;
| ^~~~~~~~~~
/usr/include/c++/11/bits/hashtable.h:528:7: error: use of deleted function 'std::__detail::_Hashtable_base<_Key, _Value, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _Traits>::_Hashtable_base() [with _Key = std::pair<long long int, long long int>; _Value = std::pair<const std::pair<long long int, long long int>, long long int>; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<long long int, long long int> >; _Hash = std::hash<std::pair<long long int, long long int> >; _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++/11/bits/hashtable.h:35,
from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable_policy.h:1604:7: note: 'std::__detail::_Hashtable_base<_Key, _Value, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _Traits>::_Hashtable_base() [with _Key = std::pair<long long int, long long int>; _Value = std::pair<const std::pair<long long int, long long int>, long long int>; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<long long int, long long int> >; _Hash = std::hash<std::pair<long long int, long long int> >; _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:
1604 | _Hashtable_base() = default;
| ^~~~~~~~~~~~~~~
/usr/include/c++/11/bits/hashtable_policy.h:1604:7: error: use of deleted function 'std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHash, _Unused, __cache_hash_code>::_Hash_code_base() [with _Key = std::pair<long long int, long long int>; _Value = std::pair<const std::pair<long long int, long long int>, long long int>; _ExtractKey = std::__detail::_Select1st; _Hash = std::hash<std::pair<long long int, long long int> >; _RangeHash = std::__detail::_Mod_range_hashing; _Unused = std::__detail::_Default_ranged_hash; bool __cache_hash_code = true]'
/usr/include/c++/11/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<std::pair<long long int, long long int> >]':
/usr/include/c++/11/bits/hashtable_policy.h:1210:7: required from here
/usr/include/c++/11/bits/hashtable_policy.h:1127:49: error: use of deleted function 'std::hash<std::pair<long long int, long long int> >::hash()'
1127 | _Hashtable_ebo_helper() noexcept(noexcept(_Tp())) : _Tp() { }
| ^~~~~
In file included from /usr/include/c++/11/string_view:42,
from /usr/include/c++/11/bits/basic_string.h:48,
from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from sequence.cpp:2:
/usr/include/c++/11/bits/functional_hash.h:102:12: note: 'std::hash<std::pair<long long int, long long int> >::hash()' is implicitly deleted because the default definition would be ill-formed:
102 | struct hash : __hash_enum<_Tp>
| ^~~~
/usr/include/c++/11/bits/functional_hash.h:102:12: error: no matching function for call to 'std::__hash_enum<std::pair<long long int, long long int>, false>::__hash_enum()'
/usr/include/c++/11/bits/functional_hash.h:83:7: note: candidate: 'std::__hash_enum<_Tp, <anonymous> >::__hash_enum(std::__hash_enum<_Tp, <anonymous> >&&) [with _Tp = std::pair<long long int, long long int>; bool <anonymous> = false]'
83 | __hash_enum(__hash_enum&&);
| ^~~~~~~~~~~
/usr/include/c++/11/bits/functional_hash.h:83:7: note: candidate expects 1 argument, 0 provided
/usr/include/c++/11/bits/functional_hash.h:102:12: error: 'std::__hash_enum<_Tp, <anonymous> >::~__hash_enum() [with _Tp = std::pair<long long int, long long int>; bool <anonymous> = false]' is private within this context
102 | struct hash : __hash_enum<_Tp>
| ^~~~
/usr/include/c++/11/bits/functional_hash.h:84:7: note: declared private here
84 | ~__hash_enum();
| ^
In file included from /usr/include/c++/11/bits/hashtable.h:35,
from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable_policy.h:1210:7: note: 'std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHash, _Unused, __cache_hash_code>::_Hash_code_base() [with _Key = std::pair<long long int, long long int>; _Value = std::pair<const std::pair<long long int, long long int>, long long int>; _ExtractKey = std::__detail::_Select1st; _Hash = std::hash<std::pair<long long int, long long int> >; _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:
1210 | _Hash_code_base() = default;
| ^~~~~~~~~~~~~~~
/usr/include/c++/11/bits/hashtable_policy.h:1210:7: error: use of deleted function 'std::__detail::_Hashtable_ebo_helper<1, std::hash<std::pair<long long int, long long int> >, true>::~_Hashtable_ebo_helper()'
/usr/include/c++/11/bits/hashtable_policy.h:1124:12: note: 'std::__detail::_Hashtable_ebo_helper<1, std::hash<std::pair<long long int, long long int> >, true>::~_Hashtable_ebo_helper()' is implicitly deleted because the default definition would be ill-formed:
1124 | struct _Hashtable_ebo_helper<_Nm, _Tp, true>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/hashtable_policy.h:1124:12: error: use of deleted function 'std::hash<std::pair<long long int, long long int> >::~hash()'
In file included from /usr/include/c++/11/string_view:42,
from /usr/include/c++/11/bits/basic_string.h:48,
from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from sequence.cpp:2:
/usr/include/c++/11/bits/functional_hash.h:102:12: note: 'std::hash<std::pair<long long int, long long int> >::~hash()' is implicitly deleted because the default definition would be ill-formed:
102 | struct hash : __hash_enum<_Tp>
| ^~~~
/usr/include/c++/11/bits/functional_hash.h:102:12: error: 'std::__hash_enum<_Tp, <anonymous> >::~__hash_enum() [with _Tp = std::pair<long long int, long long int>; bool <anonymous> = false]' is private within this context
/usr/include/c++/11/bits/functional_hash.h:84:7: note: declared private here
84 | ~__hash_enum();
| ^
In file included from /usr/include/c++/11/bits/hashtable.h:35,
from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable_policy.h:1604:7: error: use of deleted function 'std::__detail::_Hash_code_base<std::pair<long long int, long long int>, std::pair<const std::pair<long long int, long long int>, long long int>, std::__detail::_Select1st, std::hash<std::pair<long long int, long long int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>::~_Hash_code_base()'
1604 | _Hashtable_base() = default;
| ^~~~~~~~~~~~~~~
/usr/include/c++/11/bits/hashtable_policy.h:1188:12: note: 'std::__detail::_Hash_code_base<std::pair<long long int, long long int>, std::pair<const std::pair<long long int, long long int>, long long int>, std::__detail::_Select1st, std::hash<std::pair<long long int, long long int> >, 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:
1188 | struct _Hash_code_base
| ^~~~~~~~~~~~~~~
/usr/include/c++/11/bits/hashtable_policy.h:1188:12: error: use of deleted function 'std::__detail::_Hashtable_ebo_helper<1, std::hash<std::pair<long long int, long long int> >, true>::~_Hashtable_ebo_helper()'
In file included from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable.h:528:7: error: use of deleted function 'std::__detail::_Hashtable_base<std::pair<long long int, long long int>, std::pair<const std::pair<long long int, long long int>, long long int>, std::__detail::_Select1st, std::equal_to<std::pair<long long int, long long int> >, std::hash<std::pair<long long int, long long int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >::~_Hashtable_base()'
528 | _Hashtable() = default;
| ^~~~~~~~~~
In file included from /usr/include/c++/11/bits/hashtable.h:35,
from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable_policy.h:1561:12: note: 'std::__detail::_Hashtable_base<std::pair<long long int, long long int>, std::pair<const std::pair<long long int, long long int>, long long int>, std::__detail::_Select1st, std::equal_to<std::pair<long long int, long long int> >, std::hash<std::pair<long long int, long long int> >, 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:
1561 | struct _Hashtable_base
| ^~~~~~~~~~~~~~~
/usr/include/c++/11/bits/hashtable_policy.h:1561:12: error: use of deleted function 'std::__detail::_Hash_code_base<std::pair<long long int, long long int>, std::pair<const std::pair<long long int, long long int>, long long int>, std::__detail::_Select1st, std::hash<std::pair<long long int, long long int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>::~_Hash_code_base()'
In file included from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable.h:528:7: error: use of deleted function 'constexpr std::_Enable_default_constructor<false, _Tag>::_Enable_default_constructor() [with _Tag = std::__detail::_Hash_node_base]'
528 | _Hashtable() = default;
| ^~~~~~~~~~
In file included from /usr/include/c++/11/bits/hashtable.h:36,
from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/enable_special_members.h:113:15: note: declared here
113 | constexpr _Enable_default_constructor() noexcept = delete;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/11/bits/hashtable.h:35,
from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable_policy.h: In instantiation of 'std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHash, _Unused, __cache_hash_code>::__hash_code std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHash, _Unused, __cache_hash_code>::_M_hash_code(const _Key&) const [with _Key = std::pair<long long int, long long int>; _Value = std::pair<const std::pair<long long int, long long int>, long long int>; _ExtractKey = std::__detail::_Select1st; _Hash = std::hash<std::pair<long long int, long long int> >; _RangeHash = std::__detail::_Mod_range_hashing; _Unused = std::__detail::_Default_ranged_hash; bool __cache_hash_code = true; std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHash, _Unused, __cache_hash_code>::__hash_code = long unsigned int]':
/usr/include/c++/11/bits/hashtable_policy.h:729:45: required from 'std::__detail::_Map_base<_Key, _Pair, _Alloc, std::__detail::_Select1st, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits, true>::mapped_type& std::__detail::_Map_base<_Key, _Pair, _Alloc, std::__detail::_Select1st, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits, true>::operator[](std::__detail::_Map_base<_Key, _Pair, _Alloc, std::__detail::_Select1st, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits, true>::key_type&&) [with _Key = std::pair<long long int, long long int>; _Pair = std::pair<const std::pair<long long int, long long int>, long long int>; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; _Equal = std::equal_to<std::pair<long long int, long long int> >; _Hash = std::hash<std::pair<long long int, long long int> >; _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>; std::__detail::_Map_base<_Key, _Pair, _Alloc, std::__detail::_Select1st, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits, true>::mapped_type = long long int; std::__detail::_Map_base<_Key, _Pair, _Alloc, std::__detail::_Select1st, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits, true>::key_type = std::pair<long long int, long long int>]'
/usr/include/c++/11/bits/unordered_map.h:984:20: required from 'std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::mapped_type& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator[](std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_type&&) [with _Key = std::pair<long long int, long long int>; _Tp = long long int; _Hash = std::hash<std::pair<long long int, long long int> >; _Pred = std::equal_to<std::pair<long long int, long long int> >; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::mapped_type = long long int; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_type = std::pair<long long int, long long int>]'
sequence.cpp:83:77: required from here
/usr/include/c++/11/bits/hashtable_policy.h:1217:23: error: static assertion failed: hash function must be invocable with an argument of key type
1217 | static_assert(__is_invocable<const _Hash&, const _Key&>{},
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/hashtable_policy.h:1217:23: note: 'std::__is_invocable<const std::hash<std::pair<long long int, long long int> >&, const std::pair<long long int, long long int>&>{}' evaluates to false
/usr/include/c++/11/bits/hashtable_policy.h:1219:25: error: no match for call to '(const std::hash<std::pair<long long int, long long int> >) (const std::pair<long long int, long long int>&)'
1219 | return _M_hash()(__k);
| ~~~~~~~~~^~~~~
In file included from /usr/include/c++/11/unordered_map:46,
from /usr/include/c++/11/functional:61,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from sequence.cpp:2:
/usr/include/c++/11/bits/hashtable.h: In instantiation of 'std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _Hash, _RangeHash, _Unused, _RehashPolicy, _Traits>::~_Hashtable() [with _Key = std::pair<long long int, long long int>; _Value = std::pair<const std::pair<long long int, long long int>, long long int>; _Alloc = std::allocator<std::pair<const std::pair<long long int, long long int>, long long int> >; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<long long int, long long int> >; _Hash = std::hash<std::pair<long long int, long long int> >; _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>]':
/usr/include/c++/11/bits/unordered_map.h:102:11: required from here
/usr/include/c++/11/bits/hashtable.h:1534:5: error: use of deleted function 'std::__detail::_Hashtable_base<std::pair<long long int, long long int>, std::pair<const std::pair<long long int, long long int>, long long int>, std::__detail::_Select1st, std::equal_to<std::pair<long long int, long long int> >, std::hash<std::pair<long long int, long long int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >::~_Hashtable_base()'
1534 | }
| ^