제출 #90344 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
90344		Atashka01	Evacuation plan (IZhO18_plan)	C++11	컴파일 에러	0 ms	0 KiB

이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.

plan

//Euzibillahiminesseytanirracim Bismillahirrahmanirrahim /* ID: TASK: LANG: C++ */ #include <bits/stdc++.h> #define pb push_back #define ll long long #define ff first #define ss second #define mp make_pair #define PII pair<int,int> #define inf 1000000001 using namespace std; int n, m, x, y, z, k, mx, t, d[100001], kd[100001], a[100001]; vector<pair<int,int>> v[100001]; priority_queue<pair<int,int>> q; queue<int>qq; int main() { cin>>n>>m; for(int i=1;i<=m;i++){ cin>>x>>y>>z; v[x].pb({y,z}); v[y].pb({x,z}); } for(int i=1;i<=n;i++) d[i] = inf; cin>>k; for(int i=1;i<=k;i++){ cin>>a[i]; d[a[i]] = 0; q.push({0,a[i]}); } while(!q.empty()){ int b = q.top().ss; q.pop(); if(kd[b] == 1) continue; kd[b] = 1; for(auto s:v[b]){ if(d[s.ff] > d[b] + s.ss){ d[s.ff] = d[b] + s.ss; q.pu0sh({-d[s.ff] , s.ff}); } } } cin>>t; while(t--){ int l, r, p = 0; cin>>x>>y; for(auto s:v[x]) if(s == y) p = 1; if(p == 1){ cout<<min(d[x], d[y])<<"\n"; continue; } l = 0; r = d[x]; while(l <= r){ int mid = (l + r) / 2; for(int i=1;i<=n;i++) kd[i] = 0; kd[x] = 1; qq.push(x); while(!qq.empty()){ int b = qq.front(); qq.pop(); for(auto s:v[b]){ if(kd[s.ff] == 1 || d[s.ff] < mid) continue; kd[s.ff] = 1; qq.push(s.ff); } } if(kd[y] == 1) l = mid + 1; else r = mid - 1; } cout<<l - 1<<"\n"; } } /* _________oBBBBB8o oBBBBBBB8 _____o8BBBBBBBBBBB BBBBBBBBB8 o88o ___o8BBBBBB**8BBBB BBBBBBBBBB oBBBBBBBo __oBBBBBBB* *** BBBBBBBBBB BBBBBBBBBBo _8BBBBBBBBBBooooo *BBBBBBB8 *BB* 8BBBBBBo _8BBBBBBBBBBBBBBBB8ooBBBBBBB8 8BBBBBBB8 __*BBBBBBBBBBBBBBBBBBBBBBBBBB8 o88BB88BBBBBBBBBBBB ____*BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB8 ______**8BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB* ___________*BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB8* ____________*BBBBBBBBBBBBBBBBBBBBBBBB8888** _____________BBBBBBBBBBBBBBBBBBBBBBB* _____________*BBBBBBBBBBBBBBBBBBBBB* ______________*BBBBBBBBBBBBBBBBBB8 _______________*BBBBBBBBBBBBBBBB* ________________8BBBBBBBBBBBBBBB8 _________________8BBBBBBBBBBBBBBBo __________________BBBBBBBBBBBBBBB8 __________________BBBBBBBBBBBBBBBB __________________8BBBBBBBBBBBBBBB8 __________________*BBBBBBBBBBBBBBBB __________________8BBBBBBBBBBBBBBBB8 _________________oBBBBBBBBBBBBBBBBBB ________________oBBBBBBBBBBBBBBBBBBB ________________BBBBBBBBBBBBBBBBBBBB _______________8BBBBBBBBBBBBBBBBBBB8 ______________oBBBBBBBBB88BBBBBBBBB8 ______________8BBBBBBBBB*8BBBBBBBBB* ______________BBBBBBBBB* BBBBBBBBB8 ______________BBBBBBBB8 oBBBBBBBBB* ______________8BBBBBBB oBBBBBBBB* ______________BBBBBBB* 8BBBBBBB* _____________8BBBBBB* BBBBBBB* ____________8BBBBBB8 oBBBBBB8 ___________8BBBBBB8 8BBBBBB* __________oBBBBBB8 BBBBBBB8 __________BBBBBBB8 BBBBBBBB* _________oBBBBBBB8 BBBBBBBB _________8BBBBBB8 BBBBBBB* _________BBBBBB* 8BBBBB* ________oBBBB8 BBBBB* ________oBBB8 BBBB* ________BBBB8 8BBBBo _______8BBBB* oBBBBBBo ______8BBBB* *BBBBBBBB8o ______BBBBB* *88BBBo */

컴파일 시 표준 에러 (stderr) 메시지

plan.cpp: In function 'int main()':
plan.cpp:70:7: error: 'class std::priority_queue<std::pair<int, int> >' has no member named 'pu0sh'; did you mean 'push'?
     q.pu0sh({-d[s.ff] , s.ff});
       ^~~~~
       push
plan.cpp:86:25: error: no match for 'operator==' (operand types are 'std::pair<int, int>' and 'int')
   for(auto s:v[x]) if(s == y) p = 1;
                       ~~^~~~
In file included from /usr/include/c++/7/regex:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from plan.cpp:9:
/usr/include/c++/7/bits/regex.h:940:5: note: candidate: template<class _BiIter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)
     operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
     ^~~~~~~~
/usr/include/c++/7/bits/regex.h:940:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/regex:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from plan.cpp:9:
/usr/include/c++/7/bits/regex.h:1013:5: note: candidate: template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)
     operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/regex.h:1013:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/regex:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from plan.cpp:9:
/usr/include/c++/7/bits/regex.h:1093:5: note: candidate: template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)
     operator==(const sub_match<_Bi_iter>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/regex.h:1093:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/regex:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from plan.cpp:9:
/usr/include/c++/7/bits/regex.h:1173:5: note: candidate: template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)
     operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/regex.h:1173:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/regex:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from plan.cpp:9:
/usr/include/c++/7/bits/regex.h:1247:5: note: candidate: template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)
     operator==(const sub_match<_Bi_iter>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/regex.h:1247:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/regex:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from plan.cpp:9:
/usr/include/c++/7/bits/regex.h:1321:5: note: candidate: template<class _Bi_iter> bool std::__cxx11::operator==(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)
     operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/regex.h:1321:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/regex:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from plan.cpp:9:
/usr/include/c++/7/bits/regex.h:1401:5: note: candidate: template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)
     operator==(const sub_match<_Bi_iter>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/regex.h:1401:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/regex:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:110,
                 from plan.cpp:9:
/usr/include/c++/7/bits/regex.h:1920:5: note: candidate: template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator==(const std::__cxx11::match_results<_BiIter, _Alloc>&, const std::__cxx11::match_results<_BiIter, _Alloc>&)
     operator==(const match_results<_Bi_iter, _Alloc>& __m1,
     ^~~~~~~~
/usr/include/c++/7/bits/regex.h:1920:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/iosfwd:40:0,
                 from /usr/include/c++/7/ios:38,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/postypes.h:216:5: note: candidate: template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)
     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
     ^~~~~~~~
/usr/include/c++/7/bits/postypes.h:216:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::fpos<_StateT>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/7/bits/char_traits.h:39,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/stl_pair.h:443:5: note: candidate: template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
     ^~~~~~~~
/usr/include/c++/7/bits/stl_pair.h:443:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   mismatched types 'const std::pair<_T1, _T2>' and 'int'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/bits/char_traits.h:39,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/stl_iterator.h:299:5: note: candidate: template<class _Iterator> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator==(const reverse_iterator<_Iterator>& __x,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:299:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::reverse_iterator<_Iterator>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/bits/char_traits.h:39,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/stl_iterator.h:337:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
     operator==(const reverse_iterator<_IteratorL>& __x,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:337:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::reverse_iterator<_Iterator>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/bits/char_traits.h:39,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/stl_iterator.h:1118:5: note: candidate: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)
     operator==(const move_iterator<_IteratorL>& __x,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:1118:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::move_iterator<_IteratorL>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/7/bits/char_traits.h:39,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/stl_iterator.h:1124:5: note: candidate: template<class _Iterator> bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)
     operator==(const move_iterator<_Iterator>& __x,
     ^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:1124:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::move_iterator<_IteratorL>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/string:41:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/allocator.h:146:5: note: candidate: template<class _T1, class _T2> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_T2>&)
     operator==(const allocator<_T1>&, const allocator<_T2>&)
     ^~~~~~~~
/usr/include/c++/7/bits/allocator.h:146:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::allocator<_CharT>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/string:41:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/allocator.h:152:5: note: candidate: template<class _Tp> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_CharT>&)
     operator==(const allocator<_Tp>&, const allocator<_Tp>&)
     ^~~~~~~~
/usr/include/c++/7/bits/allocator.h:152:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::allocator<_CharT>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/string:52:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/basic_string.h:5997:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5997:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/string:52:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/basic_string.h:6005:5: note: candidate: template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::__cxx11::basic_string<_CharT>&, const std::__cxx11::basic_string<_CharT>&)
     operator==(const basic_string<_CharT>& __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:6005:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   'std::pair<int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/string:52:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/basic_string.h:6019:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator==(const _CharT* __lhs,
     ^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:6019:5: note:   template argument deduction/substitution failed:
plan.cpp:86:28: note:   mismatched types 'const _CharT*' and 'std::pair<int, int>'
   for(auto s:v[x]) if(s == y) p = 1;
                            ^
In file included from /usr/include/c++/7/string:52:0,
                 from /usr/include/c++/7/bits/locale_classes.h:40,
                 from /usr/include/c++/7/bits/ios_base.h:41,
                 from /usr/include/c++/7/ios:42,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from plan.cpp:9:
/usr/include/c++/7/bits/basic_string.h:6031:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT