제출 #939558

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
939558	2024-03-06 13:58:55	phoenix0423	One-Way Streets (CEOI17_oneway)	C++17	100 / 100	83 ms	37404 KiB

oneway

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define int long long
const int maxn = 2e5 + 5;
int n, m, q;
vector<pll> adj[maxn];
vector<pll> nadj[maxn];
int scc[maxn], low[maxn], in[maxn], dfn = 0, cnt = 0;
int val[maxn];
pll ori[maxn];
stack<int> st;
void dfs(int pos, int pid){
    low[pos] = in[pos] = ++dfn;
    st.push(pos);
    for(auto [x, id] : adj[pos]){
        if(id == pid) continue;
        if(in[x]) low[pos] = min(low[pos], in[x]);
        else{
            dfs(x, id);
            low[pos] = min(low[pos], low[x]);
        }
    }
 
 
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• Subtask 1: 30 / 30
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40