제출 #281683

#제출 시각아이디문제언어결과실행 시간메모리
281683VimmerSky Walking (IOI19_walk)C++14
컴파일 에러
0 ms0 KiB
#include "walk.h" #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define F first #define S second #define sz(x) int(x.size()) #define pb push_back #define N 100001 using namespace std; using namespace __gnu_pbds; typedef long long ll; typedef pair <int, int> ptr; typedef array <int, 3> a3; vector <vector <int> > g; vector <a3> edge; vector <int> nums[N], who[N], db[N]; vector <ll> dst; gp_hash_table <int, int> idr[N]; void add(int a, int b, int cost) { g[a].pb(sz(edge)); g[b].pb(sz(edge)); edge.pb({a, b, cost}); } ll min_distance(vector<int> x, vector<int> h, vector<int> l, vector<int> r, vector<int> y, int s, int to) { int n = sz(x); int m = sz(l); set <pair <int, int> > st; st.clear(); for (int j = 0; j < m; j++) {db[l[j]].pb(j); del[r[j]].pb(j);} for (int i = 0; i < n; i++) { for (auto j : db[i]) st.insert({y[j], j}); auto it = st.upper_bound(ptr(h[i], 1e9)); if (it != st.begin()) { it--; while (1) { nums[i].pb((*it).S); if (it == st.begin()) break; it--; } } for (auto j : del[i]) st.erase({y[j], j}); } int id = 0; ll ans = 1e18; set <pair <ll, int> > str; set <pair <int, int> > se; se.clear(); for (int i = 0; i < n; i++) for (auto j : nums[i]) { if (i == s) se.insert({id, y[j]}); idr[i][j] = id++; g.emplace_back(); dst.pb(-1); for (auto jr : nums[i]) { if (jr == j) break; add(id - 1, idr[i][jr], abs(y[jr] - y[j])); } if (to == i) {dst[id - 1] = 0; str.insert({y[j], id - 1});} } for (int i = 0; i < n; i++) for (auto j : nums[i]) { for (auto I : who[j]) add(idr[i][j], idr[I][j], abs(x[i] - x[I])); who[j].pb(i); } while (sz(str)) { pair <ll, int> pt = *str.begin(); str.erase(str.begin()); if (pt.F >= ans) return ans; auto it = se.upper_bound(ptr(pt.S, 1e9 + 1e9)); if (it != se.begin()) { it--; if ((*it).F == pt.S) {ans = min(ans, pt.F + (*it).S); se.erase(it); if (sz(se) == 0) return ans;} } for (auto ip : g[pt.S]) { a3 itr = edge[ip]; ll s = pt.F + itr[2]; if (itr[0] == pt.S) swap(itr[0], itr[1]); if (dst[itr[0]] != - 1 && dst[itr[0]] <= s) continue; if (ans <= s) continue; str.erase({dst[itr[0]], itr[0]}); dst[itr[0]] = s; str.insert({s, itr[0]}); } } if (ans == 1e18) return -1; return ans; }

컴파일 시 표준 에러 (stderr) 메시지

walk.cpp: In function 'll min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:47:26: error: 'del' was not declared in this scope
   47 |         {db[l[j]].pb(j); del[r[j]].pb(j);}
      |                          ^~~
walk.cpp:69:23: error: 'del' was not declared in this scope
   69 |         for (auto j : del[i])
      |                       ^~~
walk.cpp:70:31: error: no matching function for call to 'std::set<std::pair<int, int> >::erase(<brace-enclosed initializer list>)'
   70 |             st.erase({y[j], j});
      |                               ^
In file included from /usr/include/c++/9/set:61,
                 from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:87,
                 from walk.cpp:2:
/usr/include/c++/9/bits/stl_set.h:654:7: note: candidate: 'std::set<_Key, _Compare, _Alloc>::iterator std::set<_Key, _Compare, _Alloc>::erase(std::set<_Key, _Compare, _Alloc>::const_iterator) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >; std::set<_Key, _Compare, _Alloc>::iterator = std::_Rb_tree_const_iterator<std::pair<int, int> >; std::set<_Key, _Compare, _Alloc>::const_iterator = std::_Rb_tree_const_iterator<std::pair<int, int> >]'
  654 |       erase(const_iterator __position)
      |       ^~~~~
/usr/include/c++/9/bits/stl_set.h:654:28: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::set<std::pair<int, int> >::const_iterator' {aka 'std::_Rb_tree_const_iterator<std::pair<int, int> >'}
  654 |       erase(const_iterator __position)
      |             ~~~~~~~~~~~~~~~^~~~~~~~~~
/usr/include/c++/9/bits/stl_set.h:684:7: note: candidate: 'std::set<_Key, _Compare, _Alloc>::size_type std::set<_Key, _Compare, _Alloc>::erase(const key_type&) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >; std::set<_Key, _Compare, _Alloc>::size_type = long unsigned int; std::set<_Key, _Compare, _Alloc>::key_type = std::pair<int, int>]'
  684 |       erase(const key_type& __x)
      |       ^~~~~
/usr/include/c++/9/bits/stl_set.h:684:29: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const key_type&' {aka 'const std::pair<int, int>&'}
  684 |       erase(const key_type& __x)
      |             ~~~~~~~~~~~~~~~~^~~
/usr/include/c++/9/bits/stl_set.h:706:7: note: candidate: 'std::set<_Key, _Compare, _Alloc>::iterator std::set<_Key, _Compare, _Alloc>::erase(std::set<_Key, _Compare, _Alloc>::const_iterator, std::set<_Key, _Compare, _Alloc>::const_iterator) [with _Key = std::pair<int, int>; _Compare = std::less<std::pair<int, int> >; _Alloc = std::allocator<std::pair<int, int> >; std::set<_Key, _Compare, _Alloc>::iterator = std::_Rb_tree_const_iterator<std::pair<int, int> >; std::set<_Key, _Compare, _Alloc>::const_iterator = std::_Rb_tree_const_iterator<std::pair<int, int> >]'
  706 |       erase(const_iterator __first, const_iterator __last)
      |       ^~~~~
/usr/include/c++/9/bits/stl_set.h:706:7: note:   candidate expects 2 arguments, 1 provided