Submission #372768

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
372768	2021-03-01 14:55:17	ngpin04	Regions (IOI09_regions)	C++14	60 / 100	5128 ms	131076 KiB

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 #include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
const int S = sqrt(N);
map <int, int> ans[N];
vector <int> adj[N];
vector <int> id[N];
int grp[N];
int tin[N];
int tout[N];
int sum[N];
int n,m,q,cntdfs;
void dfs(int u = 1) {
  tin[u] = ++cntdfs;
  for (int v : adj[u]) 
    dfs(v);
  tout[u] = cntdfs;
}
void calc(int idgrp) {
  for (int i = 1; i <= n; i++)
    sum[i] = 0;
  for (int i : id[idgrp]) 
    sum[tin[i]]++, sum[tout[i] + 1]--;
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 45 / 85