제출 #677772

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
677772	2023-01-04 10:56:46	someone	늑대인간 (IOI18_werewolf)	C++14	100 / 100	662 ms	81116 KiB

werewolf

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#include <bits/stdc++.h>
using namespace std;
 
const int N = 2e5 + 42;
 
set<int> vals[N];
vector<int> adj[N], fils[N], req[N];
int n, m, q, id = 0, sz[N], par[N], pds[N], deb[N], fin[N];
 
int F(int i) {
    if(par[i] == i)
        return i;
    return par[i] = F(par[i]);
}
void U(int a, int b) {
    a = F(a), b = F(b);
    if(a == b) return;
    if((int)vals[a].size() < (int)vals[b].size())
        swap(a, b);
    par[b] = a;
    for(int i : vals[b])
        vals[a].insert(i);
    vals[b].clear();
}
int nbit = 0;
void dfs(int i) {
    deb[i] = id++;
 
 
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