제출 #567917

#제출 시각아이디문제언어결과실행 시간메모리
567917Stickfish즐거운 행로 (APIO20_fun)C++17
26 / 100
283 ms40136 KiB
#include "fun.h" #include <vector> #include <algorithm> #include <map> using namespace std; int n; map<pair<int, int>, int> dst; map<pair<int, int>, int> subtr; int distance(int u, int v) { if (u == v) return 0; if (dst.find({u, v}) != dst.end()) { return dst[{u, v}]; } if (dst.find({v, u}) != dst.end()) { return dst[{v, u}]; } return dst[{v, u}] = hoursRequired(u, v); } int subtree_size(int u, int v) { if (u == v) return n; if (subtr.find({u, v}) != subtr.end()) { return subtr[{u, v}]; } return subtr[{u, v}] = attractionsBehind(u, v); } int find_maxdepth(int rt, vector<int> vs) { int ans = rt; int ansdepth = 0; for (auto v : vs) { int d = distance(rt, v); if (d > ansdepth) { ansdepth = d; ans = v; } } return ans; } vector<int> ans_dumb() { vector<int> ans; vector<int> vs(n); for (int i = 0; i < n; ++i) vs[i] = i; int rt = find_maxdepth(0, vs); ans.push_back(rt); vs.erase(lower_bound(vs.begin(), vs.end(), rt)); while (vs.size()) { int nv = find_maxdepth(rt, vs); ans.push_back(nv); rt = nv; vs.erase(lower_bound(vs.begin(), vs.end(), nv)); } return ans; } vector<int> createFunTour(int N, int Q) { n = N; if (n <= 500) { return ans_dumb(); } }

컴파일 시 표준 에러 (stderr) 메시지

fun.cpp: In function 'std::vector<int> createFunTour(int, int)':
fun.cpp:67:1: warning: control reaches end of non-void function [-Wreturn-type]
   67 | }
      | ^
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