Submission #976649

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
976649	2024-05-07 00:13:49	eysbutno	Regions (IOI09_regions)	C++17	100 / 100	3804 ms	34676 KiB

regions

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#include <bits/stdc++.h>
using namespace std;
int main() {
    int n, r, q;
    cin >> n >> r >> q;
    vector<int> region(n);
    cin >> region[0];
    --region[0];
    vector<vector<int>> adj(n);
    for (int i = 1; i < n; i++) {
        int p, h; 
        cin >> p >> h;
        --p, --h;
        adj[p].push_back(i);
        region[i] = h;
    }
    // Calculating Euler tour indices.
    vector<int> tin(n), tout(n), mp(n);
    vector<vector<int>> comp(r);
    int timer = 0;
    function<void(int)> tour = [&](int u) -> void {
        tin[u] = timer++;
        mp[tin[u]] = u;
        comp[region[u]].push_back(tin[u]);
        for (int v : adj[u]) {
            tour(v);
        }
        tout[u] = timer;
    }; 
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 85 / 85