Submission #1158103

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1158103	2025-02-26 15:29:49	CodeLakVN	Regions (IOI09_regions)	C++20	0 / 100	68 ms	28968 KiB

regions

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#include <bits/stdc++.h>
using namespace std;
#define task "REGIONS"
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FOD(i, a, b) for (int i = (a); i >= (b); i--)
#define F first
#define S second
const int N = (int)2e5 + 5;
const int BLOCK = 450;
int numNode, numQuery, numRegions;
vector<int> adj[N];
vector<pair<int, int>> regions[25005];
int region[N];
int timer = 0;
int in[N], out[N];
void dfs(int u, int p) {
    in[u] = ++timer;
    for (int v : adj[u]) if (v != p) 
        dfs(v, u);
    out[u] = timer;
}
struct NODE {
    int u, region, timer;
 
 
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• Subtask 1: 0 / 15
• Subtask 2: 0 / 85