제출 #499798

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
499798	2021-12-29 13:08:29	zxcvbnm	경주 (Race) (IOI11_race)	C++14	100 / 100	993 ms	35300 KiB

race

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#include "race.h"
#include <bits/stdc++.h>
using namespace std;
constexpr int nax = 2e5 + 5;
vector<pair<int, int>> adj[nax];
int k;
struct Centroid {
    vector<int> sz;
    vector<bool> vis;
    int ans = INT_MAX;
    void init(int n) {
        sz.resize(n);
        vis.assign(n, false);
    }
    int find_size(int v, int p=-1) {
        if (vis[v]) {
            return 0;
        }
        sz[v] = 1;
        for(auto u : adj[v]) {
            if (u.first == p) continue;
            sz[v] += find_size(u.first, v);
        }
        return sz[v];
    }
 
 
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