제출 #1354790

#제출 시각아이디문제언어결과실행 시간메모리
1354790settop늑대인간 (IOI18_werewolf)C++20
0 / 100
4091 ms36832 KiB
#include "werewolf.h"
#include<bits/stdc++.h>

using namespace std;

#define ll long long
#define fall(i,a,b) for(int i=a;i<=b;i++)
#define rfall(i,a,b) for(int i=a;i>=b;i--)
#define all(x) x.begin(),x.end()
#define pb push_back
#define sz(x) (int)x.size()
const int MAXN=2e5+10;

int n;
vector<int> g[MAXN];
bool mark[MAXN];

void dfs(int x,int l){
  mark[x]=1;
  for(auto u:g[x]){
    if(mark[u] || u<l) continue;
    dfs(u,l);
  }
}

void dfs1(int x,int l,int r){
  mark[x]=1;
  for(auto u:g[x]){
    if(mark[u]) continue;
    if(u<=r) dfs1(u,l,r);
    else if(x>=l) dfs(u,l);
  }
}

std::vector<int> check_validity(int N, std::vector<int> X, std::vector<int> Y,
std::vector<int> S, std::vector<int> E, std::vector<int> L, std::vector<int> R){
    n=N;
    fall(i,0,sz(X)-1){
      g[X[i]].pb(Y[i]);
      g[Y[i]].pb(X[i]);
    }
    vector<int> ans(sz(R));
    fall(j,0,sz(S)-1){
        fall(i,0,n-1) mark[i]=0;
        dfs1(E[j],L[j],R[j]);
        ans[j]=mark[S[j]];
    }
    return ans;
}
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