제출 #736950

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
736950	2023-05-06 11:38:26	finn__	Sky Walking (IOI19_walk)	C++17	33 / 100	1150 ms	137724 KiB

walk

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#include "walk.h"
#include <bits/stdc++.h>
using namespace std;
using L = long long;
vector<size_t> last_node;
vector<vector<pair<size_t, L>>> G;
vector<pair<L, L>> p;
vector<L> d;
vector<pair<size_t, bool>> events;
L min_distance(vector<int> x, vector<int> h, vector<int> l, vector<int> r,
               vector<int> y, int s, int g)
{
    size_t const n = x.size(), m = l.size();
    last_node.resize(m);
    fill(last_node.begin(), last_node.end(), SIZE_MAX);
    for (size_t i = 0; i < m; ++i)
        events.emplace_back(i, 0), events.emplace_back(i, 1);
    sort(events.begin(), events.end(), [&](auto const &u, auto const &v)
         { int const a = u.second ? r[u.first] : l[u.first],
                     b = v.second ? r[v.first] : l[v.first];
           return a == b ? !u.second && v.second : a < b; });
    auto compare_segment_height = [&](size_t const &i, size_t const &j)
    { return y[i] < y[j]; };
    multiset<size_t, decltype(compare_segment_height)> segments(compare_segment_height);
    map<pair<L, L>, size_t> nodes;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

walk.cpp: In function 'L min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:15:18: warning: unused variable 'n' [-Wunused-variable]
   15 |     size_t const n = x.size(), m = l.size();
      |                  ^

• Subtask 1: 0 / 10
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• Subtask 5: 0 / 43