제출 #486738

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
486738	2021-11-12 15:12:24	FatihSolak	Love Polygon (BOI18_polygon)	C++17	100 / 100	303 ms	24732 KiB

polygon

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#include <bits/stdc++.h>
#define N 200005
using namespace std;
vector<int> adj[N];
int ans = 0;
int edge[N];
bool cycle[N];
int vis[N];
bool del[N];
int root[N];
void dfs(int v){
    //cout << v << " " << endl;
    vis[v] = 1;
    if(vis[edge[v]] == 1){
        cycle[v] = 1;
        int tmp = edge[v];
        while(tmp != v){
            cycle[tmp] = 1;
            tmp = edge[tmp];
        }
    }
    else if(!vis[edge[v]] && !del[edge[v]]){
        dfs(edge[v]);
    }
    else if(del[edge[v]]){
        cycle[v] = 1;
    }
    vis[v] = 2;
}
void dfs2(int v){
 
 
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• Subtask 1: 21 / 21
• Subtask 2: 25 / 25
• Subtask 3: 29 / 29
• Subtask 4: 25 / 25