제출 #704510

#제출 시각아이디문제언어결과실행 시간메모리
704510josanneo22Game (APIO22_game)C++17
30 / 100
4030 ms9324 KiB
#include "game.h" #include <bits/stdc++.h> using namespace std; vector<int> adj[300000]; int n, k; vector<int> vis; void init(int N, int K) { n = N; k = K; vis.resize(n); for(int i=0;i<k-1;i++) adj[i].push_back(i + 1); } bool dfs(int i) { if (vis[i] == 2) return true; if (vis[i] == 1) return i >= k; vis[i] = 1; for(auto j:adj[i]) { if (!dfs(j)) return false; } vis[i] = 2; return true; } int add_teleporter(int u, int v) { for (int i = 0; i < n; i++) vis[i] = 0; adj[u].push_back(v); bool ok = dfs(0); return ok ? 0 : 1; }
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