제출 #877462

#제출 시각아이디문제언어결과실행 시간메모리
877462boris_mihov즐거운 행로 (APIO20_fun)C++17
컴파일 에러
0 ms0 KiB
#include "fun.h" #include <algorithm> #include <iostream> #include <cassert> #include <numeric> #include <vector> #include <queue> typedef long long llong; const int MAXN = 100000 + 10; const int INF = 1e9; int n; int sz[MAXN]; int pos[MAXN]; int type[MAXN]; int perm[MAXN]; int depth[MAXN]; std::vector <int> g[MAXN]; int waitlistType = -1; struct Element { int type; int depth; int node; friend bool operator < (const Element &a, const Element & b) { return a.depth < b.depth || (a.depth == b.depth && a.node > b.node); } }; std::priority_queue <Element> pq; std::queue <Element> q; void calcSize(int node, int par) { sz[node] = 1; for (const int &u : g[node]) { if (u == par) { continue; } calcSize(u, node); sz[node] += sz[u]; } } int findCentroid(int node, int par) { for (const int &u : g[node]) { if (u != par && sz[u] > n / 2) { return findCentroid(u, node); } } return node; } void assign(int node, int par, int t) { type[node] = t; depth[node] = depth[par] + 1; for (const int &u : g[node]) { if (u == par) { continue; } assign(u, node, t); } } std::vector <int> createFunTour(int N, int Q) { n = N; for (int i = 1 ; i <= n ; ++i) { for (int j = 2 ; j <= n ; ++j) { if (hoursRequired(i - 1, j - 1) == 1) { g[i].push_back(j); g[j].push_back(i); } } } calcSize(1, 0); int cntr = findCentroid(1, 0); for (int idx = 0 ; idx < g[cntr].size() ; ++idx) { assign(g[cntr][idx], cntr, idx); } type[cntr] = g[cntr].size(); std::vector <int> answer; for (int i = 1 ; i <= n ; ++i) { pq.push({type[i], depth[i], i}); } while (!pq.empty()) { auto [t, d, node] = pq.top(); pq.pop(); if (waitlistType == t) { q.push({t, d, node}); continue; } if (waitlistType != -1) { answer.push_back(node); answer.push_back(q.front().node); q.pop(); if (q.empty()) { waitlistType = -1; } continue; } if (answer.size() && type[answer.back()] == t) { q.push({t, d, node}); waitlistType = t; continue; } answer.push_back(node); } std::vector <int> output; for (int i = 0 ; i < answer.size() ; ++i) { output.push_back(answer[i] - 1); if (q.size() && (i + 2 > answer.size() || depth[answer[i + 2]] <= q.front().depth) && (type[answer[i]] != q.front().type && type[answer[i + 1]] != q.front().type)) { output.push_back(q.front().node - 1); q.pop(); } } while (!q.empty()) { output.push_back(q.front()); q.pop(); } return output; }

컴파일 시 표준 에러 (stderr) 메시지

fun.cpp: In function 'std::vector<int> createFunTour(int, int)':
fun.cpp:98:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   98 |     for (int idx = 0 ; idx < g[cntr].size() ; ++idx)
      |                        ~~~~^~~~~~~~~~~~~~~~
fun.cpp:147:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  147 |     for (int i = 0 ; i < answer.size() ; ++i)
      |                      ~~^~~~~~~~~~~~~~~
fun.cpp:150:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  150 |         if (q.size() && (i + 2 > answer.size() || depth[answer[i + 2]] <= q.front().depth) && (type[answer[i]] != q.front().type && type[answer[i + 1]] != q.front().type))
      |                          ~~~~~~^~~~~~~~~~~~~~~
fun.cpp:159:35: error: no matching function for call to 'std::vector<int>::push_back(__gnu_cxx::__alloc_traits<std::allocator<Element>, Element>::value_type&)'
  159 |         output.push_back(q.front());
      |                                   ^
In file included from /usr/include/c++/10/vector:67,
                 from fun.h:1,
                 from fun.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1187:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]'
 1187 |       push_back(const value_type& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1187:35: note:   no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<Element>, Element>::value_type' {aka 'Element'} to 'const value_type&' {aka 'const int&'}
 1187 |       push_back(const value_type& __x)
      |                 ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:1203:7: note: candidate: 'void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = int; _Alloc = std::allocator<int>; std::vector<_Tp, _Alloc>::value_type = int]'
 1203 |       push_back(value_type&& __x)
      |       ^~~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1203:30: note:   no known conversion for argument 1 from '__gnu_cxx::__alloc_traits<std::allocator<Element>, Element>::value_type' {aka 'Element'} to 'std::vector<int>::value_type&&' {aka 'int&&'}
 1203 |       push_back(value_type&& __x)
      |                 ~~~~~~~~~~~~~^~~