제출 #601286

#제출 시각아이디문제언어결과실행 시간메모리
601286doowey게임 (APIO22_game)C++17
60 / 100
4103 ms25020 KiB
#include "game.h" #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef pair<int, int> pii; #define fi first #define se second #define mp make_pair int n, k; const int N = (int)3e5 + 10; int low[N]; void init(int _n, int _k) { n = _n; k = _k; for(int i = 0 ; i < n; i ++ ){ low[i] = n + 1; } } vector<int> in[N]; bool sol = false; void dfs(int u, int val){ low[u]=val; if(u < k && low[u] <= u){ sol = true; } if(sol) return; for(auto x : in[u]){ if(low[x] > val){ dfs(x, val); } } } int add_teleporter(int u, int v) { if(v < k){ if(low[u] > v) dfs(u, v); } else{ if(low[u] > low[v]){ dfs(u, low[v]); } } in[v].push_back(u); return sol; }
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