제출 #467849

#제출 시각아이디문제언어결과실행 시간메모리
467849nickmet2004Evacuation plan (IZhO18_plan)C++11
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h> #define int long long #define f first #define s second using namespace std; typedef pair<int , int> ipair; const int N = 5e5 + 5; struct TEdges{ int u , v , w; bool operator>(const TEdges &X) const{ return w > X.w; } }; int n , m , k , q; vector<ipair> adj[N]; TEdges E[N]; priority_queue<ipair , vector<ipair> , greater<ipair>> pq; int d[N] , P[N][20] , depth[N] , mn[N][20] , sz[N] , p[N]; int Find(int x){ return (x == p[x]) ? x : p[x] = Find(p[x]); } int Union(int u , int v){ int U = Find(u) ,V = Find(v); if(U == V) return 0; if(sz[U] < sz[V]) swap(U , V); sz[U] += sz[V]; p[V] = U; return 1; } void dfs(int u, int p ){ P[u][0]= p; for(int i = 1; i <= 17; ++i) P[u][i] = P[P[u][u - 1]][i - 1]; for(int i = 1; i <= 17; ++i) mn[u][i] = min(mn[u][i - 1] , mn[P[u][i - 1]][i - 1]); for(auto X : adj[u]){ int v = X.f , w = X.s; if(v == p) continue; mn[v][0] = w; depth[v] = depth[u] + 1; dfs(v ,u); } } int LCA(int u, int v){ int res = 2e9; if(depth[u] < depth[v]) swap(u , v); int k = depth[u] - depth[v]; for(int i = 17; ~i; --i){ if(k>>i&1){ res = min(res , mn[u][i]) ; u= P[u][i]; } } if(u == v) return res; for(int i = 17; ~i; --i){ if(P[u][i] != P[v][i]){ res = min({res , mn[u][i] , mn[v][i]}); u = P[u][i] ; v = P[v][i]; } } return min({res , mn[u][0] , mn[v][0]}); } main (){ ios_base::sync_with_stdio(0); cin.tie(0); cin >> n >> m; for(int i = 0; i < m; ++i){ int u , v , w; cin >> u >> v >> w; adj[u].emplace_back(v , w); adj[v].emplace_back(u , w); E[i].u = u; E[i].v = v; E[i].w = w; } cin >> k; for(int i = 1; i <= n; ++i) d[i] = 1e18; for(int i= 0;i < k; ++i){ int u; cin >> u; d[u] = 0; pq.push({0 , u}); } while(!pq.empty()){ auto X = pq.top(); pq.pop(); if(X.f != d[X.s]) continue; for(ipair N : adj[X.s]){ if(d[N.f] > X.f + N.s){ d[N.f] = X.f + N.s; pq.push({d[N.f], N.f}); } } } for(int i = 0; i < N; ++i) for(int j = 0; j < 20; ++j) mn[i][j] = 1e18; //for(int i = 1;i <= n; ++i) cout << d[i] << ' '; cerr << endl; for(int i = 1; i <= n; ++i) p[i] = i , sz[i] = 1;/// for(int i = 0; i < m; ++i) E[i].w = min(d[E[i].u] , d[E[i].v]); for(int i = 1; i <= n; ++i) adj[i].clear();/// sort(E , E + m); for(int i = 0; i < m; ++i){ int u = E[i].u , v = E[i].v ,w = E[i].w; if(Union(u , v)){ adj[u].emplace_back(v , w); adj[v].emplace_back(u , w); } } /* for(int i = 0; i < m; ++i) { cout << E[i]. u<< " " << E[i].v << " " << E[i].w << endl; }cerr << endl; */ dfs(1 ,0); cin >> q; while(q--){ int u , v; cin >> u >> v; //--u; --v; cout << LCA(u ,v) << endl; } }

컴파일 시 표준 에러 (stderr) 메시지

plan.cpp:57:2: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   57 |  main (){
      |  ^~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_less_iter::operator()(_Iterator1, _Iterator2) const [with _Iterator1 = TEdges*; _Iterator2 = TEdges*]':
/usr/include/c++/10/bits/stl_algo.h:1846:14:   required from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1886:25:   required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1977:31:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:4859:18:   required from 'void std::sort(_RAIter, _RAIter) [with _RAIter = TEdges*]'
plan.cpp:86:19:   required from here
/usr/include/c++/10/bits/predefined_ops.h:43:23: error: no match for 'operator<' (operand types are 'TEdges' and 'TEdges')
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)'
 1096 |     operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'TEdges' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)'
 1104 |     operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:43:23: note:   'TEdges' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
   43 |       { return *__it1 < *__it2; }
      |                ~~~~~~~^~~~~~~~
/usr/include/c++/10/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Val_less_iter::operator()(_Value&, _Iterator) const [with _Value = TEdges; _Iterator = TEdges*]':
/usr/include/c++/10/bits/stl_algo.h:1826:20:   required from 'void std::__unguarded_linear_insert(_RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Val_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1854:36:   required from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1886:25:   required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1977:31:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:4859:18:   required from 'void std::sort(_RAIter, _RAIter) [with _RAIter = TEdges*]'
plan.cpp:86:19:   required from here
/usr/include/c++/10/bits/predefined_ops.h:96:22: error: no match for 'operator<' (operand types are 'TEdges' and 'TEdges')
   96 |       { return __val < *__it; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)'
 1096 |     operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:96:22: note:   'TEdges' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
   96 |       { return __val < *__it; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)'
 1104 |     operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:96:22: note:   'TEdges' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
   96 |       { return __val < *__it; }
      |                ~~~~~~^~~~~~~
/usr/include/c++/10/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_less_val::operator()(_Iterator, _Value&) const [with _Iterator = TEdges*; _Value = TEdges]':
/usr/include/c++/10/bits/stl_heap.h:139:48:   required from 'void std::__push_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare&) [with _RandomAccessIterator = TEdges*; _Distance = long int; _Tp = TEdges; _Compare = __gnu_cxx::__ops::_Iter_less_val]'
/usr/include/c++/10/bits/stl_heap.h:246:23:   required from 'void std::__adjust_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = TEdges*; _Distance = long int; _Tp = TEdges; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_heap.h:355:22:   required from 'void std::__make_heap(_RandomAccessIterator, _RandomAccessIterator, _Compare&) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1666:23:   required from 'void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1937:25:   required from 'void std::__partial_sort(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1953:27:   required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = TEdges*; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:1974:25:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = TEdges*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/10/bits/stl_algo.h:4859:18:   required from 'void std::sort(_RAIter, _RAIter) [with _RAIter = TEdges*]'
plan.cpp:86:19:   required from here
/usr/include/c++/10/bits/predefined_ops.h:67:22: error: no match for 'operator<' (operand types are 'TEdges' and 'TEdges')
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)'
 1096 |     operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1096:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'TEdges' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note: candidate: 'template<class _Iterator, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)'
 1104 |     operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1104:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/10/bits/stl_algobase.h:71,
                 from /usr/include/c++/10/bits/char_traits.h:39,
                 from /usr/include/c++/10/ios:40,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from plan.cpp:1:
/usr/include/c++/10/bits/predefined_ops.h:67:22: note:   'TEdges' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
   67 |       { return *__it < __val; }
      |                ~~~~~~^~~~~~~