제출 #627339

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
627339	2022-08-12 13:05:24	clams	Regions (IOI09_regions)	C++17	55 / 100	8095 ms	34632 KiB

regions

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#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
const int R = 25e3 + 5;
const int Q = 2e5 + 5;
const int R1 = 505;
int n, r, q;
int home[N], par[N];
vector<int> adj[N];
vector<int> reg[R];
namespace sub1 {
    map<int, int> mp[N];
    int pre[R1][R1];
    void dfs(int u, int p) {
        for (int v : adj[u]) {
            if (v == p) continue;
            dfs(v, u);
            if (mp[u].size() < mp[v].size()) swap(mp[u], mp[v]);
            for (auto i : mp[v]) mp[u][i.first] += i.second;
        }
        for (auto i : mp[u]) {
            pre[home[u]][i.first] += i.second;
        }
        mp[u][home[u]]++;
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 40 / 85