Submission #991748

#	Time	Username	Problem	Language	Result	Execution time	Memory
991748		stdfloat	Longest Trip (IOI23_longesttrip)	C++17	0 / 100	3061 ms	344 KiB

longesttrip

#include "bits/stdc++.h"
#include "longesttrip.h"
using namespace std;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); //mt19937_64 for ll

int rnd(int l, int r) {
    return l + rng() % (r - l + 1);
}

vector<int> longest_trip(int n, int D) {
    vector<int> v = {0};
    vector<bool> vis(n, false); vis[0] = true;
    while ((int)v.size() < n) {
        vector<bool> vis2 = vis;
        while (true) {
            int x = rnd(1, n - 1);
            while (!vis2[x]) x = rnd(1, n - 1);

            if (are_connected({v.back()}, {x})) {
                vis[x] = true;
                v.push_back(x);

                break;
            }

            vis2[x] = true;
        }
    }

    return v;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 25
• Subtask 4: 0 / 60