제출 #576798

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
576798	2022-06-13 14:26:30	Kanon	장난감 기차 (IOI17_train)	C++14	11 / 100	1259 ms	99688 KiB

train

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#include <bits/stdc++.h>
using namespace std;
vector<int> who_wins(vector<int> owned, vector<int> z, vector<int> From, vector<int> To) {
  int n = owned.size();
  int m = To.size();
  vector<vector<int>> g(n);
  for (int i = 0; i < m; i++) {
    g[From[i]].push_back(To[i]);
  }
  vector<int> ret(n, -1);
  {
    vector<int> was(n);
    vector<int> alive(n);
    function<void(int)> dfs = [&] (int v) {
      was[v] = 1;
      for (int i : g[v]) {
        if (alive[i] && !was[i]) {
          dfs(i);
        }
      }
    };
    auto winstate = [&](vector<int> keep, vector<int> nodes) {
      fill(alive.begin(), alive.end(), 0);
      for (int i : keep) {
        alive[i] = 1;
 
 
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